View MSM6576_246840.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

E2E0021-38-94 Semiconductor
Semiconductor MSM6576
GENERAL DESCRIPTION
This version: Sep. 1998 MSM6576 Previous version: Mar. 1996
Operatable at 0.9 V and 7-level Detector 4-Bit Microcontroller
MSM6576 is a 4-bit, low-power microcontroller that is manufactured in a CMOS silicon-gate process. The microcontroller can be started and operated at a low supply voltage of 0.9 V. This device contains a crystal oscillator circuit, voltage converter circuits, a time base counter, a ROM, a RAM, a stack RAM, I/O ports, interrupt function components, a serial I/O port, a buzzer output circuit, a level detector, and a differential amplifier. This IC is driven by one battery and is well suited to products that need to be operated under low power consumption.
FEATURES
* The IC can be initialized and operated even at a low voltage of 0.9 V. * Low power consumption * ROM : 2048 words 17 bits * RAM : 64 words 4 bits * I/O port Input-output port : 7 ports 4 bits Input port : 1 port 1 bit * Interrupt functions (real-time interrupt, external interrupt, and serial interrupt) * Serial I/O port : 8-bit sync communication * Buzzer output circuit * Level detector : 7-level detection * Comparator * 73 instructions * Minimum instruction execution time : 61 ms * Operation under single 1.5 V power supply * Built-in 32.768 kHz crystal oscillator circuit * Package options: 44-pin plastic QFP (QFP44-P-910-0.80-K) (Product name : MSM6576-GS-K) 44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name : MSM6576-GS-2K) Chip indicates a code number.
1/12
P7.3 P7.2
COMPARATOR
LEVEL DETECTOR ADCON ADSET ADOUT
P7.1
LDIN
PORT7
BLOCK DIAGRAM
Semiconductor
P7.0
SCND0 SERIAL I/O PAGE S-bus FLAG WORK ADRS SBFFL SBFFH D-BUS
P6.3 P6.2 P6.1 P6.0
SIN SOUT SCKL
SCND1
RAM 64 4 bits ACC
A-bus
PORT6 EIF INTERRUPT CONTROL EIRT IRQRT FIEX IRQEX PNEX IRQSIO PRIO
MODE
P5.3 P5.2 P5.1 P5.0
ALU
PORT5
PCZIOX
PORT4
P4.3 P4.2 P4.1 P4.0
PCHZX0
FRMT
PORT3 PROGRAM ROM 204817 bits
P3.3 P3.2 P3.1 P3.0
PROGRAM COUNTER
MPX
PCIOX0
PORT2
MDTH TEMPO
MDTL BUZZER
BD
P2.3 P2.2 P2.1 P2.0
PCHZ0
PORT1 INSTRUCTION REGISTER
P1.3 P1.2 P1.1 P1.0
PCIO0
ADDER
PORT0
P0.3 P0.2 P0.1 P0.0
XT
OSC
TMOUT TIME BASE COUNTER INSTRUCTION DECODER
STACK RAM VOLTAGE REGULATOR
XTB
SYSTEM CLOCK GENERATOR
VDD VSS1 VSS2 VEE VCP VCM
MSM6576
2/12
Semiconductor
MSM6576
PIN CONFIGURATION (TOP VIEW)
38 P2.2 37 P2.1 36 P2.0 35 P1.3 34 P1.2 44 P4.0 43 P3.3 42 P3.2 41 P3.1 40 P3.0 39 VDD
P4.1 P4.2 P4.3 RESET TEST1 TEST2 TEST3 P5.0 P5.1
1 2 3 4 5 6 7 8 9
33 P1.1 32 P1.0 31 P0.3 30 P0.2 29 P0.1 28 P0.0 27 BD 26 P7.0/SIN 25 P7.1 (LDIN) 24 P7.2 (OPIN2) 23 P7.3 (OPIN1)
P6.0 12 P6.2/SCLK 13 P6.3/SOUT 14 XTB 15 XT 16 VDD 17 VSS1 18 VCM 19 VCP 20 VSS2 21 VEE 22
P5.2 10 P5.3 11
44-Pin Plastic QFP Notes: 1. P6.3, P7.0 and P7.1 are used as serial port pins as well. P7.2 and P7.3 are used as up/down counter pins as well. 2. P6.1 is not assigned as a pin.
3/12
Semiconductor
MSM6576
PIN DESCRIPTIONS
Symbol PORT0 (P0.0 to P0.3) PORT1 (P1.1 to P1.3) PORT2 (P2.0 to P2.3) PORT3 (P3.0 to P3.3) PORT4 (P4.0 to P4.3) PORT5 (P5.0 to P5.3) PORT6 (P6.0 to P6.3) Type I/O I/O I/O I/O I/O I/O I/O Description 4-bit input-output port, I/O switchable, input pull-down resistor/pull-up resistor switchable, with/without input resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor P2.0 to P2.3 External interrupt port
4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input-output port, I/O switchable, with/without input pull-down resistor P7.0: Input port, without input resistor P6.3: SOUT P6.2: SCLK P7.0: SIN Shared with serial port
PORT7 (P7.0 to P7.3) BD RESET TEST1 TEST2 TEST3 XT XTB VDD VSS1 VSS2 VCP VCM VEE
I
P7.1: Input pin for level detector P7.2: Input pin for comparator P7.3: Input pin for comparator Buzzer output pin Reset pin with input pull-down resistor Testing pins with input pull-down resistor Tie to the negative pole of the battery. Connection pins for crystal 0 V power supply pin -1.5 V supply pin (power supply pin for -1.5 V operation) -3.0 V supply pin (power supply pin for -3.0 V operation) Connection pins for internal potential development capacitor Supply pin for internal logic (constant voltage circuit output pin)
O I I I O -- -- -- -- --
4/12
Semiconductor
MSM6576
ABSOLUTE MAXIMUM RATINGS
1.5 V operation Backup flag (BUF) = "0" The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2).
VDD = 0 V (VSS1 = battery voltage) Parameter Power Supply Voltage Input Voltage Output Voltage Storage Temperature Symbol VSS1 VIN VOUT TSTG -- Ta = 25C Condition Rating -6.0 to +0.3 VSS1 - 0.3 to +0.3 VSS1 - 0.3 to +0.3 -55 to +150 C V Unit
RECOMMENDED OPERATING CONDITIONS
1.5 V operation Backup flag (BUF) = "0" The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2).
VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Operating Temperature Oscillation Frequency Symbol Vop Top fOSC Condition -- -- -- Range -3.5 to -0.9 -20 to +70 32.768 Unit V C kHz
5/12
Semiconductor
MSM6576
ELECTRICAL CHARACTERISTICS
1.5 V operation Backup flag (BUF) = "0" The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2).
(VDD = 0 V, VSS1 = -1.5 V (battery voltage) , VSS2 = -3.0 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25C) Parameter Power Supply Current 1 Power Supply Current 2 Oscillation Start Voltage Output Current 1 Output Current 2 Input Current 1 Input Current 2 Input Leakage Current Input Current 3 Input Voltage Level Detector Off Voltage *1 *1 Symbol IDD1 IDD2 -VOSC -IOH1 IOL1 -IOH2 IOL2 IIH1 -IIH2 AIIL A IIH3 -VIH -VIL -VLDoff -VLD6H -VLD5H Level Detector Detecting Voltage -VLD4H -VLD3H -VLD2H -VLD1H -VLD0H Level Detector Settling Time Level Detector Conversion Rate Comparator Offset Voltage Comparator Input Voltage Comparator Conversion Rate tSET fLD -VCMPoff -VCMPin fCMP Condition Level detector OFF Level detector ON Within 2 seconds VO = -0.5 V VO = -1.0 V VO = -0.5 V VO = -1.0 V VI = 0 V, in the input state, with pull-down resistor VI = -1.5 V, in the input state, with pull-up resistor
VI = 0 V, -1.5 V, in the input state, without pull-down resistor
Min. Typ. Max. Unit Applied Pin -- -- -- 150 150 20 20 3.75 3.75 -- 70 -- 1.2 0 725 841 958 3 15 -- -- -- -- -- 7.5 7.5 -- 250 -- -- -- 742 858 975 -- -- 0.9 -- -- -- -- 15 15 1 500 0.3 -- 80 759 875 992 P7.1 mA mA V mA mA mA mA mA mA V mV -- -- VSS1
PORT0 to PORT6*2 SOUT, SCLK
BD PORT0 to PORT6 *2 PORT0
PORT0 to PORT7*2 SIN, SOUT, SCLK
VI = -0 V, with pull-down resistor -- -- ADSTART = "0" (ADOUT) = 6H (ADOUT) = 5H (ADOUT) = 4H (ADOUT) = 3H (ADOUT) = 2H (ADOUT) = 1H (ADOUT) = 0H ADSTART = "1", during OUT ADSET execution -- -- -VB = Battery voltage --
RESET, TEST1 to TEST3
All input pins
1075 1092 1109 mV 1191 1208 1225 1308 1325 1342 1425 1442 1459 -- -- -- VB/2 -- -- -- -- -- -- 61 100 15 VB 100 ms Hz mV V Hz P7.3, P7.2
*1 Depends on program. (Values in the above table are applied in the case where the software duty is about 3%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3
6/12
Semiconductor
MSM6576
ABSOLUTE MAXIMUM RATINGS
1.5 V operation Backup flag (BUF) = "1" The input of the constant voltage circuit is directly connected to the power supply (VSS1).
VDD = 0 V (VSS1 = battery voltage) Parameter Power Supply Voltage Input Voltage Output Voltage Storage Temperature Symbol VSS1 VIN VOUT TSTG -- Ta = 25C Condition Rating -6.0 to +0.3 VSS1 - 0.3 to +0.3 VSS1 - 0.3 to +0.3 -55 to +150 C V Unit
RECOMMENDED OPERATING CONDITIONS
1.5 V operation Backup flag (BUF) = "1" The input of the constant voltage circuit is directly connected to the power supply (VSS1).
VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Operating Temperature Oscillation Frequency Symbol Vop Top fOSC Condition -- -- -- Range -3.5 to -0.9 -20 to +70 32.768 Unit V C kHz
7/12
Semiconductor
MSM6576
ELECTRICAL CHARACTERISTICS
1.5 V operation Backup flag (BUF) = "1" The input of the constant voltage circuit is directly connected to the power supply (VSS1).
(VDD = 0 V, VSS1 = -1.5 V (battery voltage) , VSS2 = -3.0 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25C) Parameter Power Supply Current 1 Power Supply Current 2 Oscillation Start Voltage Output Current 1 Output Current 2 Input Current 1 Input Current 2 Input Leakage Current Input Current 3 Input Voltage Level Detector Off Voltage *1 *1 Symbol IDD1 IDD2 -VOSC -IOH1 IOL1 -IOH2 IOL2 IIH1 -IIH2 AIILA IIH3 -VIH -VIL -VLDoff -VLD6H -VLD5H Level Detector Detecting Voltage -VLD4H -VLD3H -VLD2H -VLD1H -VLD0H Level Detector Settling Time Level Detector Conversion Rate Comparator Offset Voltage Comparator Input Voltage Comparator Conversion Rate tSET fLD -VCMPoff -VCMPin fCMP Condition Level detector OFF Level detector ON Within 2 seconds VO = -0.5 V VO = -1.0 V VO = -0.5 V VO = -1.0 V VI = 0 V, in the input state, with pull-down resistor VI = -1.5 V, in the input state, with pull-up resistor
VI = 0 V, -1.5 V, in the input state, without pull-down resistor
Min. Typ. Max. Unit Applied Pin -- -- -- 150 150 20 20 3.75 3.75 -- 70 -- 1.2 0 725 841 958 1.5 13.5 -- -- -- -- -- 7.5 7.5 -- 250 -- -- -- 742 858 975 -- -- 0.9 -- -- -- -- 15 15 1 500 0.3 -- 80 759 875 992 P7.1 mA mA V mA mA mA mA mA mA V mV -- -- VSS1
PORT0 to PORT6*2 SOUT, SCLK
BD PORT0 to PORT6 *2 PORT0
PORT0 to PORT7*2 SIN, SOUT, SCLK
VI = 0 V, with pull-down resistor -- -- ADSTART = "0" (ADOUT) = 6H (ADOUT) = 5H (ADOUT) = 4H (ADOUT) = 3H (ADOUT) = 2H (ADOUT) = 1H (ADOUT) = 0H ADSTART = "1", during OUT ADSET execution -- -- -VB = Battery voltage --
RESET, TEST1 to TEST3
All input pins
1075 1092 1109 mV 1191 1208 1225 1308 1325 1342 1425 1442 1459 -- -- -- VB/2 -- -- -- -- -- -- 61 100 15 VB 100 ms Hz mV V Hz P7.3, P7.2
*1 Depends on program. (Values in the above table are applied in the case where the software duty is about 3%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3
8/12
Semiconductor
MSM6576
NOTES ON USE
Power Supply for 0.9 V Microcontroller Series (Backup Flag and Constant-Voltage Circuit) The 0.9 V microcontroller series has built-in constant-voltage circuit. The output of this constant-voltage circuit powers the microcontroller's internal logic circuits. Setting a backup flag (BUF) allows the input of the constant-voltage circuit to be switched to either the battery or the output generated in the voltage converter, based on the battery voltage. A battery voltage is 1.5 V.
VDD (0 V) VSS1 (-1.5 V) VSS2 (-3.0 V) VSS3* (-4.5 V)
Voltage converter
Backup flag (BUF)
Internal logic
XT XTAL XTB
Constant-voltage circuit VR
VEE (About-1.3 V) LCD driver* *The VSS3 pin is provided for the devices that contain an LCD driver.
The output (VEE) of the constant-voltage circuit is set at approximately -1.3 V. This allows the current consumed by the internal logic to be limited, irrespective of the battery voltage. However, if the input of the constant-voltage circuit is below this set value (about -1.3 V), the output (VEE) is equal to the input. The 0.9 V microcontroller can be operated even if the internal voltage (output from the constant-voltage circuit) falls to 0.9 V. Setting the backup flag allows a larger operating voltage margin despite changes in internal voltage due to noise. For example, for the 1.5 V operation, setting the backup flag to "0" supplies twice the battery voltage to the constant-voltage circuit. Thus, even if the battery voltage falls to 0.9 V, the output voltage (VEE) is maintained at -1.3 V, providing a larger margin of operating voltage of the internal logic circuits because 1.8 V is applied to the input of the constant-voltage circuit. Figures 1 and 2 show the internal status depending on the backup flag settings for the battery, as well as status features.
9/12
Semiconductor (Figure 1) 1.5 V Operation (Backup Flag = "1")
VDD = 0 V VDD VB = -1.5 V
Voltage converter Internal logic Internal status Operating range
Current consumption 1.5 mA*
MSM6576
The battery level VSS1 is applied to the input of the constant-voltage circuit. (VSS2). -0.9 to -3.5 V
VSS1 VSS2 (-3.0 V) VR VEE
Voltage doubler
Feature
When the battery level is powered down, the internal circuit is powered directly by the battery.
* When the software duty is about 5%
(Figure 2) 1.5 V Operation (Backup Flag = "0")
VDD = 0 V VDD VB = -1.5 V
Voltage converter Internal logic
Internal status Operating range
Current consumption
A doubled level of VSS2 is applied to the input of the constant-voltage circuit. (VSS2). -0.9 to -3.5 V 3 mA* When the baftery level is powered down, a larger operating voltage margin is gained, compared to the case of Figure 1.
VSS1 VSS2 (-3.0 V) VR VEE
Voltage doubler
Feature
* When the software duty is about 5%
10/12
Semiconductor
MSM6576
PACKAGE DIMENSIONS
(Unit : mm) QFP44-P-910-0.80-K
Mirror finish
Package material Lead frame material Pin treatment Solder plate thickness Package weight (g)
Epoxy resin 42 alloy Solder plating 5 mm or more 0.35 TYP.
Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki's responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times).
11/12
Semiconductor
MSM6576
(Unit : mm)
QFP44-P-910-0.80-2K
Mirror finish
Package material Lead frame material Pin treatment Solder plate thickness Package weight (g)
Epoxy resin 42 alloy Solder plating 5 mm or more 0.41 TYP.
Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki's responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times).
12/12

▲Up To Search▲

Price & Availability of MSM6576

	To Download MSM6576 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .