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SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
8 - Bit Micro-controller
with 4/8KB flash embedded
Product List
SM8951A/8952AL25, 25 MHz 4/8KB internal memory MCU SM8951A/8952AC25, 25 MHz 4/8KB internal memory MCU SM8951A/8952AC40, 40 MHz 4/8KB internal memory MCU
Features
Working voltage: 3.0V ~ 3.6V For L Version 4.5V ~ 5.5V For C Version General 8052 family compatible 12 clocks per machine cycle 4/8 KB internal flash memory 256 bytes data RAM 2/3 16 bit timers/counters Four 8-bit I/O ports Full duplex serial channel Bit operation instruction Industrial Level 8-bit unsigned division 8-bit unsigned multiply BCD arithmetic Direct addressing Indirect addressing Nested interrupt Two priority level interrupt A serial I/O port Power save modes: Idle mode and power down mode Code protection function One watch dog timer (WDT) Low EMI (inhibit ALE)
Description
The SM8951A/8952A series product is an 8 - bit single chip micro controller with 4/8 KB flash embedded. It provides hardware features and a powerful instruction set, necessary to make it a versatile and cost effective controller for those applications demand up to 32 I/O pins or need up to 4/8 KB flash memory either for program or for data or mixed. To program the flash block, a commercial programmer is capable to do it.
Ordering Information
yywwv SM8951A/8952Aihhk yy: year, ww:week v: version identifier {, A, B,...} i: process identifier {L=3.0V ~ 3.6V, C=4.5V ~ 5.5V} hh: working clock in MHz {25, 40} k: package type postfix {as below table}
Postfix P J Q
Package 40L PDIP 44L PLCC 44L QFP
Pin/Pad Configuration page 2 page 2 page 2
Dimension page 13 page 14 page 15
Taiwan 4F, No. 1 Creation Road 1, Science-based Industrial Park, Hsinchu, Taiwan 30077 TEL: 886-3-578-3344 #2667 886-3-579-2987 FAX: 886-3-5792960 886-3-5780493
Specifications subject to change without notice,contact your sales representatives for the most recent information.
1/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
Pin Configurations
P1.1/T2EX P1.0/T2 NC VDD P0.0/AD0 P0.1/AD1
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7 #EA
P2.7/A15
P0.2/AD2
P0.3/AD3
P1.4
P1.3 P1.2
6
5
4
3
2
1 44 43 42 41 40
P1.5 P1.6 P1.7 RES RXD/P3.0 NC TXD/P3.1 #INT0/P3.2 #INT1/P3.3 T0/P3.4 T1/P3.5
7 8 9 10 11 12 13
39 38 37
P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 #EA NC ALE #PSEN P2.7/A15 P2.6/A14 P2.5/A13
AD3/P0.3 AD2/P0.2 AD1/P0.1 AD0/P0.0 VDD NC T2/P1.0 T2EX/P1.1 P1.2 P1.3 P1.4
34 35 36 37 38 39 40 41 42 43 44
33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1 2 3 4 5 6 7 8 9 10 11
P2.6/A14 P2.5/A13
#PSEN
NC ALE
P2.4/A12 P2.3/A11 P2.2/A10 P2.1/A9 P2.0/A8 NC VSS XAL1 XAL2 P3.7/#RD P3.6/#WR
SM8951A/8952A ihhJ 44L PLCC
36 35 34 33 32 31 30 29
SM8951A/8952A ihhQ 44L QFP (Top View)
14 (Top View) 15 16 17 18 19 20 21 22 23 24 25 26 27 28
#WR/P3.6
#RD/P3.7 XTAL2 XTAL1 VSS
A10/P2.2
A11/P2.3
A12/P2.4
A8/P2.0
A9/P2.1
NC
#INT0/P3.2
P1.5 P1.6 P1.7 RES RXD/P3.0
TXD/P3.1
#INT1/P3.3
T0/P 3.4
NC
T2/P1.0 T2EX/P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RES RXD/P3.0 TXD/P3.1 #INT/P3.2 #INT1/P3.3 T0/P3.4 T1/P3.5 #WR/P3.6 #RD/P3.7 XTAL2 XTAL1 VSS
1 2 3 4 5 6 7
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
VDD P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 #EA/VPP ALE #PSEN P2.7/A15 P2.6/A14 P2.5/A13 P2.4/A12 P2.3/A11 P2.2/A10 P2.1/A9 P2.0/A8
8 9 10 11
12
13 14 15 16 17 18 19 20
Specifications subject to change without notice,contact your sales representatives for the most recent information.
2/17
Ver 1.2
SM8951A/8952A 09/02
T1/P 3.5
SM8951A/8952A ihhP
40L PDIP (Top View)
SyncMOS Technologies Inc.
September 2002 Block Diagram
Stack Pointer Decoder & Register 256 bytes RAM
SM8951A/8952A
Timer 2
Timer 1
Timer 0
WDT
RES Reset Circuit to pertinent blocks Acc to whole chip Buffer2 Buffer1
Buffer
DPTR
Vdd Vss Power Circuit
PC Incrementer
Interrupt Circuit
to pertinent blocks
ALU
Program Counter
PSW XTAL2 XTAL1 #EA ALE #PSEN to whole system Timing Generator
Register
Instruction Register
4/8 K bytes Port 0 Latch Port 1 Latch Port 2 Latch Port 3 Latch Flash Memory
Port 0 Driver & Mux 8
Port 2 Port 3 Driver & Mux Driver & Mux Driver & Mux 8 8 8
Port 1
Specifications subject to change without notice,contact your sales representatives for the most recent information.
3/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002 Pin Descriptions
40L PDIP Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 44L 44L QFP PLCC Symbol Pin# Pin# 40 2 P1.0/T2 41 3 P1.1/T2EX 42 4 P1.2 43 5 P1.3 44 6 P1.4 1 7 P1.5 2 8 P1.6 3 9 P1.7 4 10 RES 5 11 P3.0/RXD 7 13 P3.1/TXD 8 14 P3.2/#INT0 9 15 P3.3/#INT1 10 16 P3.4/T0 11 17 P3.5/T1 12 18 P3.6/#WR 13 19 P3.7/#RD 14 20 XTAL2 15 21 XTAL1 16 22 VSS 18 24 P2.0/A8 19 25 P2.1/A9 20 26 P2.2/A10 21 27 P2.3/A11 22 28 P2.4/A12 23 29 P2.5/A13 24 30 P2.6/A14 25 31 P2.7/A15 26 32 #PSEN 27 33 ALE 29 35 #EA 30 36 P0.7/AD7 31 37 P0.6/AD6 32 38 P0.5/AD5 33 39 P0.4/AD4 34 40 P0.3/AD3 35 41 P0.2/AD2 36 42 P0.1/AD1 37 43 P0.0/AD0 38 44 VDD I/O Active i/o i/o i/o i/o i/o i/o i/o i/o i i/o i/o i/o i/o i/o i/o i/o i/o o i i/o i/o i/o i/o i/o i/o i/o i/o o o i i/o i/o i/o i/o i/o i/o i/o i/o Names
SM8951A/8952A
H
L/ L/ -
L/ L/ -
L L
bit 0 of port 1 & timer 2 clock out bit 1 of port 1 & timer 2 control bit 2 of port 1 bit 3 of port 1 bit 4 of port 1 bit 5 of port 1 bit 6 of port 1 bit 7 of port 1 Reset bit 0 of port 3 & Receive data bit 1 of port 3 & Transmit data bit 2 of port 3 & low true interrupt 0 bit 3 of port 3 & low true interrupt 1 bit 4 of port 3Timer 0 bit 5 of port 3 & Timer 1 bit 6 of port 3 & external memory write bit 7 of port 3 & external memory read Crystal out Crystal in Sink Voltage, Ground bit 0 of port 2 & bit 8 of external memory address bit 1 of port 2 & bit 9 of external memory address bit 2 of port 2 & bit 10 of external memory address bit 3 of port 2 & bit 11 of external memory address bit 4 of port 2 & bit 12 of external memory address bit 5 of port 2 & bit 13 of external memory address bit 6 of port 2 & bit 14 of external memory address bit 7 of port 2 & bit 15 of external memory address program storage enable address latch enable external access bit 7 of port 0 & data/address bit 7 of external memory bit 6 of port 0 & data/address bit 6 of external memory bit 5 of port 0 & data/address bit 5 of external memory bit 4 of port 0 & data/address bit 4 of external memory bit 3 of port 0 & data/address bit 3 of external memory bit 2 of port 0 & data/address bit 2 of external memory bit 1 of port 0 & data/address bit 1 of external memory bit 0 of port 0 & data/address bit 0 of external memory Drive Voltage, +5 Vcc
Specifications subject to change without notice,contact your sales representatives for the most recent information.
4/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
SFR Memory MAP
$F8 $F0 $E8 $E0 $D8 $D0 $C8 $C0 $B8 $B0 $A8 $A0 $98 $90 $88 $80
B ACC PSW T2CON IP P3 IE P2 SCON P1 TCON P0 TMOD SP TL0 DPL TL1 DPH TH0 (Reserved) TH1 PCON SBUF WDTC RC2L RC2H TL2 TH2 SCONF
$FF $F7 $EF $E7 $DF $D7 $CF $C7 $BF $B7 $AF $A7 $9F $97 $8F $87
Note: The text of SFRs with bold type characters are Extension Special Function Registers for SM8951A/8952A
Extension Function Description
Watch Dog Timer
The Watch Dog Timer (WDT) is a 16-bit free-running counter that generate reset signal if the counter overflows. The WDT is useful for systems which are susceptible to noise, power glitches, or electronics discharge which causing software dead loop or runaway. The WDT function can help user software recover form abnormal software condition. The WDT is different from Timer0, Timer1 and Timer2 of general 8052. To prevent a WDT reset can be done by software periodically clearing the WDT counter. The SM8951/8952 WDT has selectable divider input for the time base source clock. To select the divider input, the setting of bit2~bit0 (PS2~PS0) OF Watch Dog Timer Control Register (WDTC) should be set accordingly. To enable the WDT is done by setting 1 to the bit 7 (WDTE) of WDTC. After WDTE set to 1, the 16-bit counter starts to count with the selected time base source clock which set by PS2~PS0. It will generate a reset signal when overflows. The WDTE bit will be cleared to 0 automatically when SM8951/8952 been reset, either hardware reset or WDT reset. To reset the WDT is done by setting 1 to the bit 5 (CLEAR) of WDTC. This will clear the content of the 16-bit counter and let the counter re-start to count from the beginning.
Specifications subject to change without notice,contact your sales representatives for the most recent information.
5/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
Watch Dog Timer Registers- WDT Control Register( WDTC,$9F)
WDTE Read / Write: Reset value: R/W 0
MSB
Unused *
CLEAR 0
Unused *
Unused *
PS2 R/W 0
PS2 R/W 0
PS2 R/W 0
LSB
WDTE : Watch Dog Timer enable bit CLEAR : Watch Dog Timer reset bit If CLEAR bit set to1, Watch Dog Timer will be reset. User don't reset value to 0 .
PS2~PS0:clock soure divider bit
PS [2:0] 000 001 010 011 100 101 110 111 Divider (OSC in) 8 16 32 64 128 256 512 1024 Time Period (ms) @40MHZ 13.1 26.21 52.42 104.8 209.71 419.43 838.86 1677.72
Watch Dog Timer Register - System Control Register (SCONF, $BFH)
bit-7 WDR Read / Write: Reset value: R/W 0 Unused * Unused * Unused * Unused * Unused * Unused * bit-0 ALEI R/W 0
WDR : Watch Dog Timer Reset. When system reset by Watch Dog Timer overflow, WDR will be set to 1 ALEI : ALE output inhibit bit, to reduce EMI The bit 7(WDR) of SCONF is Watch Dog Timer Reset bit. It will be set to 1 when reset signal generated by WDT overflow. User should check WDR bit whenever un-predicted reset happened.
2. Reduce EMI Function
The SM8951A/8952A allows user to reduce the EMI emission by setting 1 to the bit 0 (ALEI) of SCONF register. This function will inhibit the clock signal in Fosc/6Hz output to the ALE pin. This finction is available when there is no external program memory or no external data RAM in the system.
Specifications subject to change without notice,contact your sales representatives for the most recent information.
6/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
Operating Conditions
Symbol TA TS VCC5 VCC3 Fosc 16 Fosc 25 Fosc 40 Description Operating temperature Storage temperature Supply voltage Supply voltage Oscillator Frequency Oscillator Frequency Oscillator Frequency Min. -40 -55 4.5 3 3.0 3.0 3.0 Typ. 25 25 5.0 3.3 16 25 40 Max. 85 155 5.5 3.6 16 25 40 Unit.
oC oC
Remarks Ambient temperature under bias
V V
For C Version For L Version
MHz For 5V, 3.3V application MHz For 5V, 3.3V application MHz For 5V application
DC Characteristics
(TA = -40 degree C to 85 degree C, Vcc = 3.0V to 5.5V) Symbol
VIL1 VIL2 VIH1 VIH2 VOL1 VOL2 VOH1 VOH2 IIL ITL ILI R RES C IO I CC
Parameter
Input Low Voltage Input Low Voltage Input High Voltage Input High Voltage Output Low Voltage Output Low Voltage Output High Voltage Output High Voltage Logical 0 Input Current Logical Transition Current Input Leakage Current Reset Pulldown Resistance Pin Capacitance Power Supply Current
Valid
port 0,1,2,3,4,#EA RES, XTAL1 port 0,1,2,3,4,#EA RES, XTAL1 port 0, ALE, #PSEN port 1,2,3,4 port 0 port 1,2,3,4,ALE,#PSEN port 1,2,3,4 port 1,2,3,4 port 0, #EA RES Vdd
Min. -0.5 0 2.0 70%Vcc
Max. 0.8 0.8 Vcc+0.5 Vcc+0.5 0.45 0.45
Unit V V V V V V V V V V uA uA uA Kohm pF mA mA uA
Test Conditions
2.4 90%Vcc 2.4 90%Vcc -75 -650 + 10 300 10 20 6.5 50
IOL=3.2mA IOL=1.6mA IOH=-800uA (only for VCC=5V) IOH=-80uA IOH=-60uA (only for VCC=5V) IOH=-10uA Vin=0.45V Vin=2.0V 0.45V50
Note1: Under steady state (non-transient) conditions, IOL must be externally Limited as follows: Maximum IOL per port pin : 10mA Maximum IOL per 8-bit port : port 0 :26mA port 1,2,3 :15mA Maximum total IOL for all output pins : 71mA If IOL exceeds the condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test conditions. Note2 : Minimum VCC for Power-down is 2V.
Specifications subject to change without notice,contact your sales representatives for the most recent information.
7/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002 AC Characteristics
SM8951A/8952A
(16/25/40MHz, operating conditions; CL for Port 0, ALE and PSEN Outputs=100pF; CL for all Other Output=80pF) Symbol T LHLL T AVLL T LLAX T LLIV T LLPL T PLPH T PLIV T PXIX T PXIZ T AVIV T PLAZ T RLRH T WLWH T RLDV T RHDX T RHDZ T LLDV T AVDV T LLYL T AVYL T QVWH T QVWX T WHQX T RLAZ T YALH T CHCL T CLCX T CLCH T CHCX T, TCLCL Parameter ALE pulse width Address Valid to ALE low Address Hold after ALE low ALE low to Valid Instruction In ALE low to #PSEN low #PSEN pulse width #PSEN low to Valid Instruction In Instruction Hold after #PSEN Instruction Float after #PSEN Address to Valid Instruction In #PSEN low to Address Float #RD pulse width #WR pulse width #RD low to Valid Data In Data Hold after #RD Data Float after #RD ALE low to Valid Data In Address to Valid Data In ALE low to #WR High or #RD low Address Valid to #WR or #RD low Data Valid to #WR High Data Valid to #WR transition Data hold after #WR #RD low to Address Float #WR or #RD high to ALE high clock fall time clock low time clock rise time clock high time clock period Valid Cycle RD/WRT RD/WRT RD/WRT RD RD RD RD RD RD RD RD RD WRT RD RD RD RD RD RD/WRT RD/WRT WRT WRT WRT RD RD/WRT fosc=16MHz Min. Typ. Max 115 43 53 240 53 173 177 0 87 292 10 365 365 302 0 145 590 542 178 197 230 403 38 73 53 Variable fosc Unit Min. Typ. Max 2xT - 10 nS T - 20 nS T - 10 nS 4xT - 10 nS T - 10 nS 3xT - 15 nS 3xT - 10 nS 0 nS T + 25 nS 5xT - 20 nS 10 nS 6xT - 10 nS 6xT - 10 nS 5xT - 10 nS 0 nS 2xT + 20 nS 8xT - 10 nS 9xT - 20 nS 3xT - 10 3xT + 10 nS 4xT - 20 nS 7xT - 35 nS T - 25 nS T + 10 nS 5 nS 72 T -10 T + 10 nS nS nS nS nS 1/fosc nS Vcc Remarks
63
ICC Active mode test circuit Vcc VCC RST SM8951A/ SM8952A (NC) Clock Signal XTAL2 XTAL1 VSS PO EA 8 ICC
Specifications subject to change without notice,contact your sales representatives for the most recent information.
8/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002 Application Reference Valid for SM8951A/8952A
X'tal C1 C2 R X'tal C1 C2 R 3MHz 30 pF 30 pF open 16MHz 30 pF 30 pF open 6MHz 30 pF 30 pF open 25MHz 15 pF 15 pF 62K 9MHz 30 pF 30 pF open 33MHz 5 pF 5 pF 6.8K 12MHz 30 pF 30 pF open 40MHz 2 pF 2 pF 4.7K
C1 X'tal XI
SM8951A/8952A
SM8951A/8952A
R X2 C2
NOTE: Oscillation circuit may differs with different crystal or ceramic resonator in higher oscillation frequency which was due to each crystal or ceramic resonator has its own characteristics. User should check with the crystal or ceramic resonator manufacturer for appropriate value of external components.
Data Memory Read Cycle Timing
T12 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T1 T2 T3
OSC
ALE
#PSEN
#RD
PORT2
ADDRESS A15 - A8
PORT0
INST in Float
A7 - A0
Float
DATA in
Float ADDRESS or Float
Specifications subject to change without notice,contact your sales representatives for the most recent information.
9/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002 Program Memory Read Cycle Timing
T12 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T1
SM8951A/8952A
T2
OSC ALE
#PSEN #RD,#WR
PORT2
ADDRESS A15 - A8
ADDRESS A15 - A8
PORT0
Float
A7 - A0
Float
INST in
Float
A7 - A0
Float
INST in
Float
Data Memory Write Cycle Timing
T12 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T1 T2 T3
OSC
ALE
#PSEN
#WR
PORT2
ADDRESS A15 - A8
PORT0
INST
Float
A7 - A0
DATA OUT
ADDRESS or Float
Specifications subject to change without notice,contact your sales representatives for the most recent information.
10/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
I/O Ports Timing
T6 T7 T8 T9 T10 T11 T12 T1 T2 T3 T4 T5 T6 T7 T8
X1 inputs P0,P1
sampled
sampled
inputs P2,P3 Output by Mov Px,Src RxD at Serial Port Shift Clock (Mode 0)
current data next data
sampled
Timing Critical, Requirement of External Clock (Vss=0.0V is assumed)
TCLCL
Vdd-0.5V
70%Vdd
0.45V
20%Vdd-0.1V TCHCL TCLCX TCLCH TCHCX
Tm.I
#PSEN ALE PORT 0
External Program Memory Read Cycle
TPLPH
TLHLL TAVLL A0 - A7
TLLPL TLLAX TPLAZ TPLIV
TPXIZ TPXIX Instruction. IN A0 - A7
TAVIV
PORT 2
A8 - A15
A8 - A15
Specifications subject to change without notice,contact your sales representatives for the most recent information.
11/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002 Tm.II External Data Memory Read Cycle
SM8951A/8952A
#PSEN
TYHLH
ALE
TLLDV TLLYL TRLRH
#RD
TAVLL
TLLAX TRLAZ A0 - A7 from Ri or DPL TAVYL TAVDV
TRLDV
TRHDZ TRHDX DATA IN A0 - A7 from PCL INSTRL IN
PORT 0
PORT 2
P2.0 - P2.7 or A8 - A15 from DPH
A8 - A15 from PCH
Tm.III External Data Memory Write Cycle
#PSEN
TLHLL
TYHLH
ALE
TLLYL TWLWH
#WR
TAVLL TLLAX
TQVWX
TQVWH
TWHQX
PORT 0
A0-A7 from Ri or DPL
DATA OUT
A0-A7 From PCL
INSTRL IN
TAVYL
PORT 2
P2.0-P2.7 or A8-A15 from DPH
A8-A15 from PCH
Specifications subject to change without notice,contact your sales representatives for the most recent information.
12/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
40L 600mil PDIP Information
E S D E1
A1
A2 A
C
L e1 B1 B
eA a
Note: 1. Dimension D Max & include mold flash or tie bar burrs. 2. Dimension E1 does not include inter lead flash. 3. Dimension D & E1 include mold mismatch and are determined at the mold parting line. 4. Dimension B1 does not include dam bar protrusion/ infusion. 5. Controlling dimension is inch. 6. General appearance spec. should base on final visual inspection spec.
Symbol A A1 A2 B B1 C D E E1 e1 L a eA S
Dimension in inch minimal/maximal - / 0.210 0.010 / 0.150 / 0.160 0.016 / 0.022 0.048 / 0.054 0.008 / 0.014 - / 2.070 0.590 / 0.610 0.540 / 0.552 0.090 / 0.110 0.120 / 0.140 0 / 15 0.630 / 0.670 - / 0.090
Dimension in mm minimal/maximal - / 5.33 0.25 / 3.81 / 4.06 0.41 / 0.56 1.22 / 1.37 0.20 / 0.36 - / 52.58 14.99 / 15.49 13.72 / 14.02 2.29 / 2.79 3.05 / 3.56 0 / 15 16.00 / 17.02 - / 2.29
Specifications subject to change without notice,contact your sales representatives for the most recent information.
13/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002 44L Plastic Chip Carrier (PLCC)
6 7 L
SM8951A/8952A
E
HE y
GE
D HD A2 A C A1
b1 e GD
b
Note: 1. Dimension D & E does not include inter lead flash. 2. Dimension b1 does not include dam bar protrusion/ intrusion. 3. Controlling dimension: Inch 4. General appearance spec. should base on final visual inspection spec.
Symbol A A1 A2 b1 b C D E e GD GE HD HE L
y
Dimension in inch minimal/maximal - / 0.185 0.020 / 0.145 / 0.155 0.026 / 0.032 0.016 / 0.022 0.008 / 0.014 0.648 / 0.658 0.648 / 0.658 0.050 BSC 0.590 / 0.630 0.590 / 0.630 0.680 / 0.700 0.680 / 0.700 0.090 / 0.110 - / 0.004 /
Dimension in mm minimal/maximal - / 4.70 0.51 / 3.68 / 3.94 0.66 / 0.81 0.41 / 0.56 0.20 / 0.36 16.46 / 16.71 16.46 / 16.71 1.27 BSC 14.99 / 16.00 14.99 / 16.00 17.27 / 17.78 17.27 / 17.78 2.29 / 2.79 - / 0.10 /
Specifications subject to change without notice,contact your sales representatives for the most recent information.
14/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
44L Plastic Quad Flat Package
C L S e L1 2 R1 D2 D1 D b A2 3 R2 A1 Gage Plane 0.25 mm
E2 E1 E e1 A
seating plane e
C
Note: Dimension D1 and E1 do not include mold protrusion. Allowance protrusion is 0.25mm per side. Dimension D1 and E1 do include mold mismatch and are determined datum plane. Dimension b does not include dam bar protrusion. Allowance dam bar protrusion shall be 0.08 mm total in excess of the b dimension at maximum material condition. Dam bar cannot be located on the lower radius or the lead foot.
Symbol A A1 A2 b c D D1 D2 E E1 E2 e L L1 R1 R2 S 1 2 3 C
Dimension in Inch minimal/maximal - / 0.100 0.006 / 0.014 0.071 / 0.087 0.012 / 0.018 0.004 / 0.009 0.520 BSC 0.394 BSC 0.315 0.520 BSC 0.394 BSC 0.315 0.031 BSC 0.029 / 0.041 0.063 0.005 / 0.005 / 0.012 0.008 / 0 / 7 0 / 10 REF 7 REF 0.004
Dimension in mm minimal/maximal - / 2.55 0.15 / 0.35 1.80 / 2.20 0.30 / 0.45 0.09 / 0.20 13.20 BSC 10.00 BSC 8.00 13.20 BSC 10.00 BSC 8.00 0.80 BSC 0.73 / 1.03 1.60 0.13 / 0.13 / 0.30 0.20 / as left as left as left as left 0.10
Specifications subject to change without notice,contact your sales representatives for the most recent information.
15/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002
SM8951A/8952A
eMCU writer list
Company Advantech 7F, No.98, Ming-Chung Rd., Shin-Tien City, Taipei, Taiwan, ROC Web site: http://www.aec.com.tw Caprilion P.O. Box 461 KaoHsiung, Taiwan, ROC Web site: http://www.market.net.tw/ ~ cap/ Hi-Lo 4F, No. 20, 22, LN, 76, Rui Guang Rd., Nei Hu, Taipei, Taiwan, ROC. Web site: http://www.hilosystems.com.tw Leap 6th F1-4, Lane 609, Chunghsin Rd., Sec. 5, Sanchung, Taipei Hsien, Taiwan, ROC Web site: http://www.leap.com.tw Xeltek Electronic Co., Ltd 338 Hongwu Road, Nanjing, China 210002 Web site: http://www.xeltek-cn.com Contact info Tel:02-22182325 Fax:02-22182435 E-mail: aecwebmaster@advantech.com.tw Programmer Model Number LabTool - 48 (1 * 1) LabTool - 848 (1*8)
Tel:07-3865061 Fax:07-3865421 E-mail: cap@market.net.tw
UNIV2000
Tel:02-87923301 Fax:02-87923285 E-mail: support@hilosystems.com.tw
All - 11 (1*1) Gang - 08 (1*8)
Tel:02-29991860 Fax:02-29990015 E-mail: service@leap.com.tw
ChipStation (1*1) SU - 2000 (1*8)
Tel:+86-25-4408399, 4543153-206 E-mail: xelclw@jlonline.com, xelgbw@jlonline.com
Superpro/2000 (1*1) Superpro/680 (1*1) Superpro/280 (1*1) Superpro/L+(1*1)
Specifications subject to change without notice,contact your sales representatives for the most recent information.
16/17
Ver 1.2
SM8951A/8952A 09/02
SyncMOS Technologies Inc.
September 2002 Feedback / Inquiry: To Attn Fax Tel :SyncMOS Technologies, Inc. :MKT / Customer Service Dept. :886-3-579-2960 :886-3-578-0493 :886-3-579-2987 :886-3-578-3344 # 2667 From :
SM8951A/8952A
Company : Dept, Section : Position Title : Inquiry Date : Ref No :
Description:
Specifications subject to change without notice,contact your sales representatives for the most recent information.
17/17
Ver 1.2
SM8951A/8952A 09/02

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