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SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Product List
SM8951A/8952AL25, 25MHz 4/8KB internal flash MCU SM8951A/8952AC25, 25MHz 4/8KB internal flash MCU SM8951A/8952AC40, 40MHz 4/8KB internal flash 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 4/8K 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 hard-ware 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
yymmv SM8951A/8952AihhkL yy: year, ww: month 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} L:PB Free identifier {No text is Non-PB Free"P"is PB Free}
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 15/16
Taiwan 6F, No.10-2 Li- Hsin 1st Road , Science-based Industrial Park, Hsinchu, Taiwan 30078 TEL: 886-3-567-1820 886-3-567-1880 FAX: 886-3-567-1891 886-3-567-1894 Specifications subject to change without notice contact your sales representatives for the most recent information.
1
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Pin Configuration
Specifications subject to change without notice contact your sales representatives for the most recent information.
2
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Block Diagram
Specifications subject to change without notice contact your sales representatives for the most recent information.
3
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Pin Description
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 QFP Pin#
40 41 42 43 44 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38
44L PLCC Pin#
2 3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 21 22 24 25 26 27 28 29 30 31 32 33 35 36 37 38 39 40 41 42 43 44
Symbol
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RES P3.0/RXD P3.1/TXD P3.2/#INT0 P3.3/#INT1 P3.4/T0 P3.5/T1 P3.6/#WR P3.7/#RD XTAL2 XTAL1 VSS P2.0/A8 P2.1/A9 P2.2/A10 P2.3/A11 P2.4/A12 P2.5/A13 P2.6/A14 P2.7/A15 #PSEN ALE #EA P0.7/AD7 P0.6/AD6 P0.5/AD5 P0.4/AD4 P0.3/AD3 P0.2/AD2 P0.1/AD1 P0.0/AD0 VDD
Active
I/O
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
bit 0 of port 1 bit 1 of port 1 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 & Receiver 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 3 & Timer 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
H
L/L/-
L/L/-
L L
Specifications subject to change without notice contact your sales representatives for the most recent information.
4
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
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 RC2L RC2H TL2 TH2 SCONF $FF $F7 $EF $E7 $DF $D7 $CF $C7 $BF $B7 $AF $A7 $9F $97 $8F $87
SBUF TMOD SP TL0 DPL TL1 DPH TH0 TH1
WDTC PCON
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 from 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 RC oscillator. It will generate a reset signal when overflows. The WDTE bit will be cleared to 0 automatically when SM8958A been reset, either hardware reset or WDT reset. To reset the WDT is done by setting 1 to the CLEAR bit of WDTC before the counter overflow. 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
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Watch Dog Timer Registers - WDT Control Register (WDTC, $9F)
WDTE Read / Write: Reset value: R/W 0 MSB WDTE : Watch Dog Timer enable bit CLEAR : Watch Dog Timer reset bit If CLEAR bit set to 1 , Watch Dog Timer will be reset . User don't reset value to 0 . PS2~PS0:clock source 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 R * Clear 0 Unused * Unused * PS2 R/W 0 PS1 R/W 0 PS0 R/W 0 LSB
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.
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 function is available when there is no external pro gram 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
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Operating Conditions
Symbol TA VCC5 VCC3 Fosc 25 Fosc 40 Description Operating temperature Supply voltage Supply voltage Oscillator Frequency Oscillator Frequency Min. -40 4.5 3 3.0 3.0 Typ. 25 5.0 3.3 25 40 Max. 85 5.5 3.6 25 40 Unit.
Remarks Ambient temperature under bias For C Version For L Version For 5V, 3.3V application For 5V application
V V MHz MHz
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 Pull-down Resistance Pin Capacitance Power Supply Current
Valid
port 0,1,2,3,#EA RES, XTAL1 port 0,1,2,3,#EA RES, XTAL1 port 0, ALE, #PSEN port 1,2,3 port 0 port 1,2,3,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
Test Conditions
2.4 90%Vcc 2.4 90%Vcc -75 -650 10 50 300 10 20 6.5 50
IOL=8mA (5V) / IOL=6mA (3.3V) IOL=6.5mA (5V) / IOL=5mA (3.3V) IOH=-800uA (only for VCC =5V) IOH=-80uA IOH=-60uA (only for VCC =5 V) IOH=-10uA Vin=0.45V Vin=2.0V 0.45VuA uA uA Kohm pF mA mA uA
Freq=1MHz, Ta=25 Active mode, 16MHz Idle mode, 16MHz Power down mode
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.
AC Characteristics
(16/25/40MHz, operating conditions; CL for Port 0, ALE and PSEN Outputs=100pF; CL for all Other Output=80pF) Specifications subject to change without notice contact your sales representatives for the most recent information.
7
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
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 63 1/fosc 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 53 72 T -10 178 230 403 38 73 0 145 590 542 197 3xT - 10 4xT - 20 7xT - 35 T - 25 T + 10 5 365 365 302 0 0 87 292 10 6xT - 10 6xT - 10 53 173 177 0 fosc=16MHz Min. Typ. Max 115 43 53 240 T - 10 3xT - 15 Min. 2xT - 10 T - 20 T - 10 Variable fosc Typ.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Unit Max nS nS nS 4xT-10 nS nS nS 3xT-10 T+25 5xT-20 10 nS nS nS nS nS nS nS 5xT-10 2xT+20 8xT-10 9xT-20 3xT+10 nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS T+10 Remarks
Specifications subject to change without notice contact your sales representatives for the most recent information.
8
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Application Reference Valid for SM8958A
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
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
Specifications subject to change without notice contact your sales representatives for the most recent information.
9
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Program Memory Read Cycle Timing
Data Memory Write Cycle Timing
Specifications subject to change without notice contact your sales representatives for the most recent information.
10
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
I/O Ports Timing
Timing Critical, Requirement of External Clock
(Vss=0.0V is assumed)
Tm.I External Program Memory Read Cycle
Specifications subject to change without notice contact your sales representatives for the most recent information.
11
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
Tm.II External Data Memory Read Cycle
Tm.III External Data Memory Write Cycle
Specifications subject to change without notice contact your sales representatives for the most recent information.
12
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
PDIP 40L (600mil) Package Information
Symbol A1 A2 b b1 b2 b3 c c1 D E E1 e eB L S Q1
Dimension in mm Min
0.254 3.683 0.356 0.356 1.016 1.016 0.203 0.203 52.07 14.99 13.69 15.75 2.921 1.727 1.651 0
Dimension in MIL Min
10 145 14 14 40 40 8 8 2050 590 539 620 115 68 65 0
Nom
3.810 0.500 0.457 1.270 1.321 0.254 0.254 52.2 15.24 13.87 2.540 16.26 3.302 1.981 1.778
Max
3.937 0.660 0.508 1.524 1.626 0.432 0.356 52.32 15.49 13.94 16.76 3.683 2.235 1.905 10
Nom
150 20 18 50 52 10 10 2055 600 546 100 640 130 78 70
Max
155 26 22 60 64 17 14 2060 610 549 660 145 88 75 10
Note: 1. Refer to JEDEC STD.MS-011(AC). 2. Dimension D and E1 do not include mold protrusion. Allowable protrusion is 0.25 mm per side. D and E1 are maximum plastic body size dimension include mold mismatch. 3. Dimension b3 does not include dambar protrusion. Allowable dambar protrusion shall not cause the lead width to exceed the maximum b3 dimension by more than 0.2mm.
Specifications subject to change without notice contact your sales representatives for the most recent information.
13
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
PLCC 44L Package Information
UNIT SYMBOL A A1 A2 B B1 c D D1 D2 E E1 E2 e y
INCH(REF)
0.180(MAX) 0.024 0.005 0.105 0.005 0.018 + 0.004 - 0.002 0.028 + 0.004 - 0.002 0.010(TYP) 0.690 0.010 0.653 0.003 0.610 0.020 0.690 0.010 0.653 0.003 0.610 0.010 0.050(TYP) 0.003(MAX) 0~5
MM(BASE)
4.572(MAX) 0.52 0.14 2.667 0.127 0.457 + 0.102 - 0.051 0.711 + 0.102 - 0.051 0.254(TYP) 17.526 0.254 16.586 0.076 15.494 0.508 17.526 0.254 16.586 0.076 15.494 0.254 1.270(TYP) 0.076(MAX) 0~5
Specifications subject to change without notice contact your sales representatives for the most recent information.
14
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
QFP 44L(10x10x2.0mm) Package Information
Symbol A A1 A2 b b1 c
Note: 1. Refer to JEDC STD.MS-022(AB). 2. Dimension E1 do not include mold protrusion. Allowable protrusion is 0.25mm per side.E1 are maximum plastic body size dimension include mold mismatch . 3. Dimension b does not include dambar protrusion .Allowable dambar protrusion shall not cause the lead width to exceed the maximum b3 dimension by more than 0.1 mm.
Dimension in mm Min
0.05 1.90 0.29 0.29 0.11 0.11 13.00 9.90 0.73 1.50 0
Dimension in MIL Min
2.1 74.8 11.4 11.4 4.3 4.3 512 390 28.7 59.1 0
Nom
0.15 2.00 0.32 0.30 0.17 0.15 13.20 10.00 0.800 0.88 1.60
Max
2.45 0.25 2.10 0.45 0.41 0.23 0.19 13.40 10.10 1.03 1.70 0.076 7
Nom
6.0 78.7 12.6 11.8 6.7 5.9 520 394 31.5 34.6 63.0
Max
964 9.6 82.7 17.7 16.1 9.1 7.5 528 398 40.6 66.9 3 7
c1 E E1 e L L1 y
Specifications subject to change without notice contact your sales representatives for the most recent information.
15
Ver 2.1
SM8951A/8952A 08/2006
SyncMOS Technologies International, Inc.
SM8951A/8952A
8-Bits Micro-controller With 4/8KB flash embedded
e MCU writer list
Company Advantech 7F, No.98, Ming-Chung Rd., Shin-Tien City, Taipei, Taiwan, ROC Web site: http://www.aec.com.tw 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 Lab Tool - 48XP (1 * 1) Lab Tool - 848 (1*8)
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
Leap-48 (1*1) SU - 2000 (1*8)
Tel:+86-25-84408399, 84543153-206 E-mail: xelclw@jlonline.com, xelgbw@jlonline.com
Superpro/2000 (1*1) Superpro/280U (1*1) Superpro/L+(1*1)
Specifications subject to change without notice contact your sales representatives for the most recent information.
16
Ver 2.1
SM8951A/8952A 08/2006

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