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INTEGRATED CIRCUITS
DATA SHEET
PCA84C122; 222; 422; 622; 822 8-bit microcontrollers for remote control transmitters
Product specification Supersedes data of February 1994 File under Integrated Circuits, IC14 1995 May 01
Philips Semiconductors
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
CONTENTS 1 2 2.1 3 4 5 6 6.1 6.2 7 8 8.1 8.2 8.3 9 9.1 9.2 10 11 12 13 14 15 16 17 17.1 17.2 18 19 FEATURES GENERAL DESCRIPTION Important note MEMORY AND I/O CONFIGURATIONS ORDERING INFORMATION BLOCK DIAGRAM PINNING INFORMATION Pinning Pin description POWER-ON-RESET STATUS AND PORT OPTIONS HARDWARE MODULATOR Interface between the 84CXXX core and derivative logic Instructions for data transfer between the 84CXXX core and derivative logic Operation of the Hardware Modulator INTERRUPTS Internal timer/counter External keypad wake-up and T0/INT pin OUTPUT DRIVER WATCHDOG TIMER (WDT) LIMITING VALUES DC CHARACTERISTICS AC CHARACTERISTICS APPLICATION INFORMATION PACKAGE OUTLINES SOLDERING Plastic small outline packages Plastic dual in-line packages DEFINITIONS LIFE SUPPORT APPLICATIONS
PCA84C122; 222; 422; 622; 822
1995 May 01
2
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
1 FEATURES
PCA84C122; 222; 422; 622; 822
Although the PCA84C122 is specifically referred to throughout this data sheet, the information applies to all the devices. The differences between the PCA84C122 and the other devices are specified in Chapter 3. Figure 2 shows the general block diagram of the device. The 84CXXX core plus 8 kbytes ROM and 64 bytes RAM has the same function as described in the PCF84CXXX family description (see "Data Handbook IC14"). When the transmitter is not in use the microcontroller is in Stop mode and the oscillator is halted. The AND gate connected to the Port 1 (P10 to P17) lines provides the wake-up to end the Stop mode. The Hardware Modulator produces pulse bursts according to the required protocol. The ON-time and OFF-time of each pulse (i.e. duty factor) and the number of pulses are controlled by software. The Watchdog Timer (WDT) will reset the PCA84C122 when it has not been reloaded (reset) in time, because the program has run out of sequence (endless loop, continuous Idle mode, etc.). During Stop mode the oscillator is halted, therefore the Watchdog Timer is not running. Automatic system reset is generated by the WDT if the timer is not reset before overflow from counting within a certain period of time. The Output Driver can handle sufficient current to drive a single transistor, that provides the required current for the IR-LED. 2.1 Important note
* 84CXXX CPU * ROM, RAM and I/O configurations are device dependent; see Chapter 3 * Two test inputs: T0 (ANDed with Port 1 input lines) and T1 * 3 single-level vectored interrupt sources: - external (T0/INT and Port 1, for keypad press wake-up function) - timer/counter (TI) - hardware modulator interrupt * 8-bit programmable timer/counter with 5-bit pre-scaler * Power saving: Idle and Stop modes are provided * Hardware Modulator providing pulse bursts, with: - programmable duty factor for each pulse - programmable number of pulses * One output line from the Hardware Modulator to control the driver transistor for the infrared LED (IR-LED). Capable of sinking 27 mA at VDD = 2.0 V, VOUT = 1.0 V * Watchdog Timer to keep the transmitter from being locked or malfunction * Available packages: SO and DIP types (SO20, SO24, SO28, SDIP24 and DIP20); see Chapter 4 * On-chip oscillator: 455 kHz to 6 MHz * Single supply voltage: 2.0 V to 5.5 V * Operating temperature: -20 to +50 C. 2 GENERAL DESCRIPTION
The PCA84C122 is a stand-alone microcontroller designed for use in remote control transmitters for a wide range of applications. The PCA84C122 provides a number of dedicated hardware functions for remote controller applications. These functions include the following additional blocks to the 84CXXX core: * Interrupt Gate * Hardware Modulator * Output Driver * Watchdog Timer.
This data sheet details the specific properties of the PCA84C122; PCA84C222; PCA84C422; PCA84C622 and PCA84C822. The shared characteristics of the family of microcontrollers are described in the PCF84CXXXA Family single-chip 8-bit Microcontroller of "Data Handbook IC14", which should be read in conjunction with this data sheet.
1995 May 01
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Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
3 MEMORY AND I/O CONFIGURATIONS DEVICE PCA84C122A PCA84C122B PCA84C222A PCA84C222B PCA84C422A PCA84C422B PCA84C622A PCA84C622B PCA84C622C PCA84C822A PCA84C822B PCA84C822C Note 1. 4 I/O lines with 10 mA sink capability. 4 ORDERING INFORMATION TYPE NUMBER(1) NAME PCA84CX22AP PCA84CX22AT PCA84CX22BP PCA84CX22BT PCA84C622CT PCA84C822CT Note 1. `X' in the type number denotes the numbers: 1, 2, 4, 6 and 8. SDIP24 SO24 DIP20 SO20 SO28 I/O LINES 16 12 16 12 16 12 16 12 20(1) 16 12 20(1)
PCA84C122; 222; 422; 622; 822
ROM 1K 2K 4K
RAM
32 bytes
6K 64 bytes 8K
PACKAGE DESCRIPTION plastic shrink dual in-line package; 24 leads (400 mil) plastic small outline package; 24 leads; body width 7.5 mm plastic dual in-line package; 20 leads (300 mil) plastic small outline package; 20 leads; body width 7.5 mm plastic small outline package; 28 leads; body width 7.5 mm; low stand-off height VERSION SOT234-1 SOT137-1 SOT146-1 SOT163-1 SOT136-1
PC
A
84C122
P
technology: PC = CMOS temperature range: A = 20 to 50 oC
package: P = plastic DIL T = plastic mini-pack (SO) generic type number
MLA973 - 1
Fig.1 Numbering scheme.
1995 May 01
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Fig.2 Block diagram.
handbook, full pagewidth
1995 May 01
VDD ROM 8 kbytes RAM 64 bytes
5
Philips Semiconductors
8-bit microcontrollers for remote control transmitters
BLOCK DIAGRAM
PCA84CXXX
OSCILLATOR
XTAL1 XTAL
XTAL2 f osc / 30 WDT RESET T1 P20 P21 P22 P23 OUTPUT DRIVER OUT T0/INT HARDWARE MODULATOR
84CXXX CORE
5
PCA84C122; 222; 422; 622; 822
V SS
MCD248 - 2
P01 P00
P03
P05
P07
P11
P13
P15
P17
T0/INT
P02
P04
P06
P10
P12
P14
P16
Product specification
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
6 6.1 PINNING INFORMATION Pinning
PCA84C122; 222; 422; 622; 822
P22 P14 P01 P00 T0 / INT T1 RESET V DD XTAL2 XTAL1 1 2 3 4 5 6 7 8 9 24 P15 23 P02 22 P03 21 OUT 20 VSS P14 P01 P00 T0/INT T1 RESET V DD XTAL2 16 P13 15 P07 P04 P05 11 P16 12
MCD251 - 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14
MLA977 - 1
28 P23 27 P15 26 P02 25 P03 24 OUT 23 VSS
84CX22AP 84CX22AT
19 P10 18 P11 17 P12
84C622CT 22 P10 84C822CT
21 P11 20 P12 19 P13 18 P07 17 P06 16 P17 15 P21
XTAL1
P04 10
14 P06 13 P17
P05 P16 P20
Fig.3
Pin configurations PCA84CX22AP (SDIP24) and PCA84CX22AT(SO24).
Fig.4 Pin configuration PCA84CX22CT (SO28).
P01 P00 T0 / INT
1 2 3
20 P02 19 P03 18 OUT
P10 VSS OUT P03 P02 P01 P00 T0/INT T1
1 2 3 4 5
20 P11 19 18 17 16 P12 P13 P07 P06 P05 P04 XTAL1 XTAL2 V DD
T1 4 RESET V DD XTAL2 XTAL1 P04 5 6 7 8 9
17 VSS
84CX22BT 16 P10
15 P11 14 P12 13 P13 12 P07 11 P06
MCD250 - 2
84CX22BP
6 7 8 9 15 14 13 12 11
MLA975 - 2
P05 10
RESET 10
Fig.5 Pin configuration PCA84CX22BT (SO20).
Fig.6 Pin configuration PCA84CX22BP (DIP20).
1995 May 01
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Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
6.2 Pin description
PCA84C122; 222; 422; 622; 822
Table 1
Pin description for PCA84CX22AP, PCA84CX22AT, PCA84CX22BP, PCA84CX22BT and PCA84CX22CT PIN
SYMBOL P00 to P07 P10 to P17 P20 to P23 T0/INT T1 RESET
SDIP24/SO24 (see Fig.3) 3, 2, 23, 22, 10, 11, 14, 15 19, 18, 17, 16, 1, 22, 12, 13 - 4 5 6
SO28 (see Fig.4) 4, 3, 26, 25, 11, 12, 17, 18 22, 21, 20,19, 2, 27, 13, 16 14, 15, 1, 28 5 6 7
SO20 (see Fig.5) 2, 1, 20, 19, 9, 10, 11, 12 16, 15, 14, 13 - 3 4 5
DIP20 (see Fig.6) 7, 6, 5, 4, 14, 15, 16, 17 1, 20,19, 18 - 8 9 10
DESCRIPTION standard I/O Port lines, generally used for keypad scanning standard I/O Port lines, generally used for keypad sensing standard I/O Port lines, generally used for visible LED's test T0 and external interrupt input test T1 input active HIGH reset; normally connected to VSS. For further information see PCF84CXXXA description in "Data Handbook IC14". crystal or ceramic resonator pulse train output pin, capable of sinking 27 mA power supply ground
XTAL1 XTAL2 OUT VDD VSS 7
9 8 21 7 20
10 9 24 8 23
8 7 18 6 17
13 12 3 11 2
POWER-ON-RESET STATUS AND PORT OPTIONS
* All Port lines are standard I/O (option 1). * RESET (Power-on-reset) level of 1.3 V. After Power-on-reset, Port 0 is reset to LOW; Port 1, Port 2 and OUT are reset to HIGH.
1995 May 01
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Product specification
8-bit microcontrollers for remote control transmitters
8 HARDWARE MODULATOR
PCA84C122; 222; 422; 622; 822
The number of pulses of the train is also programmable. The time between pulse bursts is determined by software, possibly using the standard 8-bit Timer/Counter. 8.1 Interface between the 84CXXX core and derivative logic
The Hardware Modulator is the main derivative part in the PCA84C122. Figure 7 shows the internal architecture. The Hardware Modulator generates a pulse train whereby the ON-time of a pulse and the OFF-time between pulses can be programmed in a number of clock cycles (period = 1/fosc); see Figs 8 and 7.
There are three (derivative) registers and one (derivative) counter that must be loaded from the core.
internal bus (IB0 - 7)
ON-TIME REGISTER (8)
OFF-TIME REGISTER (8)
CONTROL REGISTER (5)
PULSE TIMER (8)
PULSE COUNTER HIGH (2)
PULSE COUNTER LOW (8)
f osc CONTROL LOGIC control
MCD255 - 1
OUT
Fig.7 Hardware Modulator.
OFF-time end OUT start elapse time by software interrupt
MCD254
ON-time pulse #1 pulse #2
pulse #3
ON-time = 2 (on-time register = 0)
OFF-time = 4 (off-time register = 2)
number of pulses = 3
Fig.8 Example pulse train output of OUT pin.
1995 May 01
8
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
8.1.1 ON-TIME REGISTER (ADDRESS: 00H) 8.1.3
PCA84C122; 222; 422; 622; 822
PULSE COUNTER
This 8-bit register is loaded by software; the decimal value of its contents + 2, determine the number of oscillator cycles that the OUT pin is active. ( contents + 2 ) The active period (ON-time) of OUT = -------------------------------------f osc 8.1.2 OFF-TIME REGISTER (ADDRESS: 01H)
The Pulse Counter, is a 10-bit register consisting of: * Pulse Counter Low (8-bit); address 02H. * Pulse Counter High (2-bit); address 04H. The Pulse Counter is loaded by software with the number of pulses required in a pulse burst; loading `0' is not allowed. 8.1.4 CONTROL REGISTER (ADDRESS 03H)
This 8-bit register is loaded by software; the decimal value of its contents + 2, determine the number of oscillator cycles that the OUT pin is inactive. ( contents + 2 ) The inactive period (OFF-time) of OUT = -------------------------------------f osc Table 2 7 - Table 3 BIT 7 to 5 4 3 2 Control Register (CR) 6 - Description of the CR bits SYMBOL - RWDT Rint PWM Reserved. 5 - 4 RWDT
The Control Register contains the bits that control various possibilities for the output pulses, plus the reset of the interrupt flip-flop and the Watchdog timer.
3 Rint
2 PWM
1 LgP
0 HF
DESCRIPTION Reload Watchdog Timer: This is not an actual flip-flop in the Control Register. If a logic 1 is written to this bit position the Watchdog Timer is reloaded (reset to 0); this bit is Write only. Reset Interrupt: This is not an actual flip-flop in the Control Register. If a logic 1 is written to this bit position the interrupt flip-flop is reset; this bit is Write only. Pulse Width Modulation: Is the standard term for a quasi analog signal. It is a square wave signal of which the duty cycle may be varied. When integrated a real analog signal may be obtained. When PWM = 1; the Pulse Counter Register is ignored and a continuous pulse train is generated (see Fig.9); this bit is Read or Write. Long Pulse: When LgP = 1; the OFF-time Register is ignored and a single pulse of length = ( ON-time ) x ( number of pulses ) is generated. If HF = 1, this pulse is modulated with a frequency 14 x fosc (see Fig.10); this bit is Read or Write. High Frequency: When HF = 1 the ON-time part of the generated pulse is modulated with a frequency 14 x fosc (see Fig.11); this bit is Read or Write.
1
LgP
0
HF
8.2
Instructions for data transfer between the 84CXXX core and derivative logic DESCRIPTION Move contents of the accumulator to the derivative register. Move contents of derivative register to the accumulator. AND derivative register contents with contents of accumulator. Result is stored in derivative register. OR derivative register contents with contents of accumulator. Result is stored in derivative register.
INSTRUCTION MOV Dx,A MOV A,Dx ANL Dx,A ORL Dx,A
1995 May 01
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Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
PCA84C122; 222; 422; 622; 822
HF = 0
LgP = 0
PWM = 1
ON-time = 3
OFF-time = 5
MCD258
number of pulses = don' t care
Fig.9 Analog output (PWM).
software time interrupt HF = 1 LgP = 1 PWM = 0 ON-time = 12 OFF-time = don' t care
MCD257 - 1
number of pulses = 5
Fig.10 Long Pulse (modulated).
software time interrupt HF = 1 LgP = 0 PWM = 0 ON-time = 12 OFF-time = 12
MCD256 - 1
number of pulses = 3
Fig.11 Modulated by 14 x fosc. 1995 May 01 10
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
8.3 Operation of the Hardware Modulator
PCA84C122; 222; 422; 622; 822
If the external interrupt is disabled, program execution continues with the instruction following the STOP instruction. The wake-up function is activated when any of the sense lines (Port 1 pins) are pulled LOW. 9.2.2 T0/INT PIN
First the ON-time and OFF-time registers are loaded. The number of pulses to be generated is stored in the Pulse Counter. The Hardware Modulator starts as soon as the Pulse Counter is loaded. First the signal OUT is activated and the ON-time value is stored in the Pulse Timer. Then the Pulse Timer is counted down with pulses of 1/fosc. When the Pulse Timer reaches zero the OUT signal becomes inactive and the value held in the Pulse Counter is decreased by `1'. If the Pulse Counter is not yet zero, the OFF-time is stored in the Pulse Timer and is counted down again. When it reaches zero now, signal OUT is activated again, ON-time is loaded and the counter starts counting down etc. On the Pulse Counter reaching zero, an interrupt (Special Interrupt, SI) is sent to the CPU, indicating that the Hardware Modulator is ready. The delay between two pulse bursts is determined by software. When a new burst must be generated with the same ON-time and OFF-time values, only the Pulse Counter is loaded with the required number of pulses and the Hardware Modulator will start automatically. The interrupt signal is reset when the Pulse Counter is loaded or can be reset directly by writing a logic 1 to bit Rint of the Control Register. 9 INTERRUPTS
T0/INT must be connected to VDD when not in use, because no internal pull-up or pull-down is present (floating input). Because this pin is `ANDed' with Port 1 inputs, the result of `JTO' and `JNTO' instructions and the interrupt depends on the AND of all Port 1 and T0/INT inputs. T0/INT can serve as an extra sense line, when a pull-up resistor is connected, however, multiple keys will not be detected. 10 OUTPUT DRIVER The output of the Hardware Modulator is amplified and able to sink a current of 27 mA when the OUT signal is active. Therefore, only one external (PNP) transistor is required to drive the IR-LED. LOW level output sink current, minimum 27 mA at VDD = 2.0 V, VOUT < VDD - 1.0 V. 11 WATCHDOG TIMER (WDT) The Watchdog timer consists of a 17 stage counter with a clock of 130 x fosc. A logic 1 written to RWDT bit (Control Register) clears the WDT to zero. After a Power-on-reset, the WDT is cleared to zero; the content of the WDT is then incremented by `1' every 30 clock cycles. If the WDT is not reset to zero before it overflows, a RESET signal is generated and the device is reset, thus preventing a lock up or malfunction. The software must clear the WDT at least 1/fosc x 30 x 216 seconds before it generates the RESET signal; i.e. at fosc = 1 MHz, this is 1.92 s. In the Idle mode the oscillator is still running and therefore the WDT remains active. In the Stop mode, the WDT is fully stopped and the value of the counter is kept.
There are three different interrupt sources with different vectors within the PCA84C122, these are: * External keypad wake-up and T0/INT pin; vector address: 03H * Hardware modulator (SI); vector address: 05H * Internal Timer/counter (TI); vector address: 07H. 9.1 Internal timer/counter
The internal timer/counter is the same as in the other members of the PCF84CXXX family. Instructions `EN TCNTI' and `DIS TCNTI' are to enable/disable the interrupt. 9.2 9.2.1 External keypad wake-up and T0/INT pin KEYPAD WAKE-UP
The keypad wake-up function generates an interrupt signal to the CPU. This signal is used to terminate the Stop mode and thus allows program execution to continue. If the external interrupt is enabled the microcontroller executes the instruction immediately following the STOP instruction, before executing the interrupt routine. 1995 May 01 11
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
PCA84C122; 222; 422; 622; 822
12 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VDD VI Isink(max) IOUT Irev Ptot Tstg Tamb supply voltage all input voltages maximum sink current (all Port lines) output current maximum reverse current total power dissipation storage temperature operating ambient temperature PARAMETER MIN. -0.5 -0.5 - - 27 - - -55 -20 +7.0 VDD + 0.5 -5 5 - -500 500 +125 +50 MAX. UNIT V V mA mA mA mA mW C C
Isource(max) maximum source current (all Port lines)
13 DC CHARACTERISTICS VDD = 4.5 V to 5.5 V; VSS = 0 V; Tamb = -20 to +50 C; all voltages with respect to VSS; unless otherwise specified. SYMBOL Supply VDD IDD IDD(ID) IDD(ST) VIL VIH ILl IOL IOH supply voltage operating supply current supply current Idle mode supply current Stop mode VDD = 3 V; fxtal = 3 MHz VDD = 5 V; fxtal = 3 MHz VDD = 3 V; fxtal = 3 MHz VDD = 5 V; fxtal = 3 MHz VDD = 5 V; fxtal = 3 MHz 2.0 - - - - - 3.0 0.4 0.9 0.20 0.25 1.20 - 0.20 5.5 0.9 1.8 0.40 0.50 10 V mA mA mA mA A PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Inputs (RESET, T0/INT, T1, Port 0: P00 to P07, Port 1: P10 to P17, Port 2: P20 to P23) LOW level input voltage HIGH level input voltage input leakage current VSS < VI < VDD VDD = 5 V; VO = 0.4 V VDD = 5 V; VO = 0.7VDD VDD = 5 V; VO = VSS VDD = 2 V; VO = 1.0 V 0 - 0.3VDD V VDD 10 - - - -400 - - V A 0.7VDD -
Outputs (Port 0: P00 to P07, Port 1: P10 to P17, Port 2: P20 to P23) LOW level output sink current HIGH level pull-up output source current 1.6 -40 -140 27 -1.6 12.0 - -100 -140 - - mA mA A A mA mA VDD = = 5 V; VO = 0.4 V; P20 - P23 10
PULSE OUTPUT (OUT) IOL IOH LOW level output sink current HIGH level output source current VDD = 2 V; VO = 0.7VDD
1995 May 01
12
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
PCA84C122; 222; 422; 622; 822
14 AC CHARACTERISTICS VDD = 2.0 V to 5.5 V; VSS = 0 V; Tamb = -20 to +50 C; all voltages with respect to VSS; unless otherwise specified. SYMBOL Oscillator fxtal gmL gmM gmH RFB operating crystal frequency Low transconductance Medium transconductance High transconductance feedback resistor VDD = 2.5 V VDD = 2.0 V 0.455 0.455 0.3 0.9 3.0 0.3 - - 0.7 1.6 4.5 1.0 6.0 5.0 1.4 3.2 9.0 3.0 MHz MHz mS mS mS M PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1995 May 01
13
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
15 APPLICATION INFORMATION
PCA84C122; 222; 422; 622; 822
P00 P01 P02 P03 P04 P05 P06 P07
100 V DD XTAL1
XTAL2
T0 / INT
84C122A
P10 P11 P12 P13 P14 P15
T1
3.0 V
27 mA OUT
RESET P16 P17 VSS
MCD252
Fig.12 PCA84C122A Remote control transmitter application.
Figure 12 shows the main application of the PCA84C122 as a remote control transmitter. Each key of the transmitter keypad represents a specific command. The keys are in an orderly matrix with each key connected between an I/O line of Port 0 and an I/O line of Port 1. The lines of Port 0 are designated `scan' (output) lines, and the lines of Port 1 are `sense' (input) lines. By making each scan line a logic 0 in turn, and each time looking at the sense lines, the depressed key is detected. The corresponding command code is determined by using a software look-up table. This code together with the system address is sent according to a coding scheme or protocol (e.g. RC-5). The pulses that are generated are available at the OUT pin. This pin drives the output transistor, which provides the current for the IR-LED. T0/INT is not used and therefore connected to VDD. T1 is used for system or option selection, therefore a jumper can be connected to VDD or ground.
When more options must be selected, this can be done in different ways as illustrated in the following two examples: 1. When the number of keys is sufficiently low a scan line can be spared. This scan line may be used to connect a jumper wire to one of the sense lines. Normally the scan line should be logic 1. When this line is set to logic 0 the option setting can be read from the sense lines. 2. By connecting diodes between one sense line and a number of scan lines (see Fig.12). If necessary these diodes can be placed parallel to the keys. When the sense line is set to logic 0 (acts as scan line), the option setting can be read from the scan lines (which act as sense lines and should be set to logic 1 beforehand). For the oscillator a crystal or ceramic resonator may be used. A resistor in series with the supply, limits the reverse current through the IC in the event of the supply voltage being reversed (i.e. wrong insertion of batteries). 14
1995 May 01
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
16 PACKAGE OUTLINES SDIP24: plastic shrink dual in-line package; 24 leads (400 mil)
PCA84C122; 222; 422; 622; 822
SOT234-1
D seating plane
ME
A2
A
L
A1 c Z e b 24 13 b1 wM (e 1) MH
pin 1 index E
1
12
0
5 scale
10 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 4.7 A1 min. 0.51 A2 max. 3.8 b 1.3 0.8 b1 0.53 0.40 c 0.32 0.23 D (1) 22.3 21.4 E (1) 9.1 8.7 e 1.778 e1 10.16 L 3.2 2.8 ME 10.7 10.2 MH 12.2 10.5 w 0.18 Z (1) max. 1.6
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT234-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION
ISSUE DATE 92-11-17 95-02-04
1995 May 01
15
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
PCA84C122; 222; 422; 622; 822
SO24: plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
D
E
A X
c y HE vMA
Z 24 13
Q A2 A1 pin 1 index Lp L 1 e bp 12 wM detail X (A 3) A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 15.6 15.2 0.61 0.60 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 0.004 Z
(1)
0.9 0.4 0.035 0.016
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
0.419 0.043 0.055 0.394 0.016
8o 0o
Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT137-1 REFERENCES IEC 075E05 JEDEC MS-013AD EIAJ EUROPEAN PROJECTION
ISSUE DATE 95-01-24 97-05-22
1995 May 01
16
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
PCA84C122; 222; 422; 622; 822
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 20 11 MH wM (e 1)
pin 1 index E
1
10
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.2 0.17 A1 min. 0.51 0.020 A2 max. 3.2 0.13 b 1.73 1.30 0.068 0.051 b1 0.53 0.38 0.021 0.015 c 0.36 0.23 0.014 0.009 D
(1)
E
(1)
e 2.54 0.10
e1 7.62 0.30
L 3.60 3.05 0.14 0.12
ME 8.25 7.80 0.32 0.31
MH 10.0 8.3 0.39 0.33
w 0.254 0.01
Z (1) max. 2.0 0.078
26.92 26.54 1.060 1.045
6.40 6.22 0.25 0.24
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT146-1 REFERENCES IEC JEDEC EIAJ SC603 EUROPEAN PROJECTION
ISSUE DATE 92-11-17 95-05-24
1995 May 01
17
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
PCA84C122; 222; 422; 622; 822
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
D
E
A X
c y HE vMA
Z 20 11
Q A2 A1 pin 1 index Lp L 1 e bp 10 wM detail X (A 3) A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 13.0 12.6 0.51 0.49 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 0.004 Z
(1)
0.9 0.4 0.035 0.016
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
0.419 0.043 0.055 0.394 0.016
8o 0o
Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT163-1 REFERENCES IEC 075E04 JEDEC MS-013AC EIAJ EUROPEAN PROJECTION
ISSUE DATE 95-01-24 97-05-22
1995 May 01
18
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
PCA84C122; 222; 422; 622; 822
SO28: plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1
D
E
A X
c y HE vMA
Z 28 15
Q A2 A1 pin 1 index Lp L 1 e bp 14 wM detail X (A 3) A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 18.1 17.7 0.71 0.69 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 0.004 Z
(1)
0.9 0.4 0.035 0.016
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
0.419 0.043 0.055 0.394 0.016
8 0o
o
Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT136-1 REFERENCES IEC 075E06 JEDEC MS-013AE EIAJ EUROPEAN PROJECTION
ISSUE DATE 95-01-24 97-05-22
1995 May 01
19
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
17 SOLDERING 17.1 17.1.1 Plastic small outline packages BY WAVE
PCA84C122; 222; 422; 622; 822
17.1.3 REPAIRING SOLDERED JOINTS (BY HAND-HELD
SOLDERING IRON OR PULSE-HEATED SOLDER TOOL)
During placement and before soldering, the component must be fixed with a droplet of adhesive. After curing the adhesive, the component can be soldered. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. Maximum permissible solder temperature is 260 C, and maximum duration of package immersion in solder bath is 10 s, if allowed to cool to less than 150 C within 6 s. Typical dwell time is 4 s at 250 C. A modified wave soldering technique is recommended using two solder waves (dual-wave), in which a turbulent wave with high upward pressure is followed by a smooth laminar wave. Using a mildly-activated flux eliminates the need for removal of corrosive residues in most applications. 17.1.2 BY SOLDER PASTE REFLOW
Fix the component by first soldering two, diagonally opposite, end pins. Apply the heating tool to the flat part of the pin only. Contact time must be limited to 10 s at up to 300 C. When using proper tools, all other pins can be soldered in one operation within 2 to 5 s at between 270 and 320 C. (Pulse-heated soldering is not recommended for SO packages.) For pulse-heated solder tool (resistance) soldering of VSO packages, solder is applied to the substrate by dipping or by an extra thick tin/lead plating before package placement. 17.2 17.2.1 Plastic dual in-line packages BY DIP OR WAVE
The maximum permissible temperature of the solder is 260 C; this temperature must not be in contact with the joint for more than 5 s. The total contact time of successive solder waves must not exceed 5 s. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified storage maximum. If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. 17.2.2 REPAIRING SOLDERED JOINTS
Reflow soldering requires the solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the substrate by screen printing, stencilling or pressure-syringe dispensing before device placement. Several techniques exist for reflowing; for example, thermal conduction by heated belt, infrared, and vapour-phase reflow. Dwell times vary between 50 and 300 s according to method. Typical reflow temperatures range from 215 to 250 C. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 min at 45 C.
Apply a low voltage soldering iron below the seating plane (or not more than 2 mm above it). If its temperature is below 300 C, it must not be in contact for more than 10 s; if between 300 and 400 C, for not more than 5 s.
1995 May 01
20
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
18 DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
PCA84C122; 222; 422; 622; 822
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. 19 LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
1995 May 01
21
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
NOTES
PCA84C122; 222; 422; 622; 822
1995 May 01
22
Philips Semiconductors
Product specification
8-bit microcontrollers for remote control transmitters
NOTES
PCA84C122; 222; 422; 622; 822
1995 May 01
23
Philips Semiconductors - a worldwide company
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Internet: http://www.semiconductors.philips.com/ps/ For all other countries apply to: Philips Semiconductors, International Marketing and Sales, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Telex 35000 phtcnl, Fax. +31-40-724825 SCD39 (c) Philips Electronics N.V. 1995
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
453041/1500/03/pp24 Document order number: Date of release: 1995 May 01 9397 750 00102
Philips Semiconductors

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