Document
www.DataSheet4U.com
SyncMOS Technologies Inc.
January 2003
Preliminary
SM79108
8 - Bit Micro-controller
with 8KB flash & 256 Bytes RAM embedded
Product List
SM79108L25, 25 MHz 8KB internal memory MCU SM79108C40, 40 MHz 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 8 KB internal flash memory 256 bytes on-chip data RAM Three 16 bit timers/counters Four 8-bit I/O ports for PDIP package Four 8-bit I/O ports + one 4-bit I/O ports for PLCC or QFP package A14 x 4 LCD driver (P0, P2, ALE, PSEN) 1 Channel SPWM (P1.2) 1 Channel PWM (P1.5) Full duplex serial channel Bit operation instruction Industrail 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 SM79108 series product is an 8 - bit single chip micro controller with 8 KB flash & 256 bytes RAM embedded. It has 4-channel, 8-bit ADC function build-in, 1-channel SPWM and 1-channel PWM build-in and A14(segment) x 4(common) LCD driver. 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 for PDIP package or up to 36 I/O pins for PLCC/QFP package, or applications which need up to 64K byte flash memory for program and/or for data. To program the flash block, a commercial programmer is capable to do it.
Ordering Information
yywwv: production date code identifier SM79108ihhk yy: year, ww: weak, v: version 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}
Pin/Pad Configuration page 2 page 2 page 2
Postfix P J Q
Package 40L PDIP 44L PLCC 44L QFP
Dimension page 22 page 23 page 24
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.
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Preliminary
Ver 1.0
SM79108 01/03
www.DataSheet4U.com
SyncMOS Technologies Inc.
January 2003
Preliminary
SM79108
Pin Configurations
P0.4/AD4/SEG9 P0.5/AD5/SEG8 P0.6/AD6/SEG7 P0.7/AD7/SEG6 #EA P2.7/A15/SEG3
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
VDD P0.0/AD0/SEG13 P0.1/AD1/SEG12 P0.2/AD2/SEG11 P0.3/AD3/SEG10 P0.4/AD4/SEG9 P0.5/AD5/SEG8 P0.6/AD6/SEG7 P0.7/AD7/SEG6 #EA ALE/SEG5 #PSEN/SEG4 P2.7/A15/SEG3 P2.6/A14/SEG2 P2.5/A13/SEG1 P2.4/A12/SEG0 P2.3/A11/COM3 P2.2/A10/COM2 P2.1/A9/COM1 P2.0/A8/COM0 SEG10/AD3/P0.3 SEG11/AD3/P0.2 SEG12/AD3/P0.1 SEG13/AD3/P0.0 VDD P4.2 T2/P1.0 T2EX/P1.1 SPWM/P1.2 P1.3 P1.4
T2EX/P1.1 SPWM/P1.2 P1.3 P1.4 PWM/P1.5 P1.6 P1.7 RES RXD/P3.0 .