SM89516B datasheet(8/49 Pages) SYNCMOS

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SM89516B

8-Bit Micro-controller

64KB Flash

& 1KB RAM embedded

Specifications subject to change without notice contact your sales representatives for the most recent information.

ISSFD-M087

Ver D SM89516B 08/07/2015

- 8 -

Pin Description

40L

PDIP

44L

PLCC

44L

PQFP

Symbol

I/O

Description

P4.2

I/O

Bit 2 of port 4

P1.0/T2

I/O

Bit 0 of port 1 & Timer 2 external input clock

P1.1/T2EX

I/O

Bit 1 of port 1 & Timer 2 capture trigger

P1.2/PWM0

I/O

Bit 2 of port 1 & PWM Channel 0

P1.3/PWM1

I/O

Bit 3 of port 1 & PWM Channel 1

P1.4

I/O

Bit 4 of port 1

P1.5

I/O

Bit 5 of port 1

P1.6/SCL

I/O

Bit 6 of port 1 & IIC SCL pin

P1.7/SDA

I/O

Bit 7 of port 1 & IIC SDA pin

RESET

Reset pin

P3.0/RXD

I/O

Bit 0 of port 3 & Serial interface channel receive data

P4.3

I/O

Bit 3 of port 4

P3.1/TXD

I/O

Bit 1 of port 3 & Serial interface channel Transmit data

P3.2/INT0

I/O

Bit 2 of port 3 & Interrupt 0

P3.3/INT1

I/O

Bit 3 of port 3 & Interrupt 1

P3.4/T0

I/O

Bit 4 of port 3 & Timer 0 external input

P3.5/T1

I/O

Bit 5 of port 3 & Timer 1 external input

P3.6/WR

I/O

Bit 6 of port 3 & external memory write

P3.7/RD

I/O

Bit 7 of port 3 & external memory read

XTAL2

I/O

Crystal output

XTAL1

I/O

Crystal input

VSS

Ground

P4.0

I/O

Bit 0 of port 4

P2.0/A8

I/O

Bit 0 of port 2 & bit 8 of external memory address

P2.1/A9

I/O

Bit 1 of port 2 & bit 9 of external memory address

P2.2/A10

I/O

Bit 2 of port 2 & bit 10 of external memory address

P2.3/A11

I/O

Bit 3 of port 2 & bit 11 of external memory address

P2.4/A12

I/O

Bit 4 of port 2 & bit 12 of external memory address

P2.5/A13

I/O

Bit 5 of port 2 & bit 13 of external memory address

P2.6/A14

I/O

Bit 6 of port 2 & bit 14 of external memory address

P2.7/A15

I/O

Bit 7 of port 2 & bit 15 of external memory address

PSEN

program storage enable

ALE

address latch enable

P4.1

I/O

Bit 1 of port 4

external access

P0.7/AD7

I/O

Bit 7 of port 0 & data/address bit 7 of external memory

P0.6/AD6

I/O

Bit 6 of port 0 & data/address bit 6 of external memory

P0.5/AD5

I/O

Bit 5 of port 0 & data/address bit 5 of external memory

P0.4/AD4

I/O

Bit 4 of port 0 & data/address bit 4 of external memory

P0.3/AD3

I/O

Bit 3 of port 0 & data/address bit 3 of external memory

P0.2/AD2

I/O

Bit 2 of port 0 & data/address bit 2 of external memory

P0.1/AD1

I/O

Bit 1 of port 0 & data/address bit 1 of external memory

P0.0/AD0

I/O

Bit 0 of port 0 & data/address bit 0 of external memory

VDD

Power supply

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