IC89LV52(51)A

Integrated Circuit Solution Inc.

1

MC010-0D 11/16/2001

ICSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors

which may appear in this publication. © Copyright 2000, Integrated Circuit Solution Inc.

CMOS SINGLE CHIP

8-BIT MICROCONTROLLER

with 8(4)-Kbytes of FLASH

FEATURES

• 80C52(51) based architecture

• 8(4)-Kbytes Flash memory with fast-pulse

programming algorithm and software protection

• 256 x 8 RAM (128 x 8 RAM)

• Three (Two)16-bit Timer/Counters

• Full duplex serial channel

• Boolean processor

• Four 8-bit I/O ports, 32 I/O lines

• Memory addressing capability

– 64K ROM and 64K RAM

• Program memory lock

– Lock bits (3)

•

Power save modes:

– Idle and power-down

• Eight interrupt sources

• Most instructions execute in 0.5 µs

• CMOS and TTL compatible

• Maximum speed: 24 MHz @ Vcc = 3.3V

• Packages available:

– 40-pin DIP

– 44-pin PLCC

– 44-pin PQFP

GENERAL DESCRIPTION

The ICSI IC89LV52(51)A is a high-performance micro-

controller fabricated with high-density CMOS technology.

The CMOS IC89LV52A is functionally compatible with the

NMOS Intel 8052(51) and Philips

controller, but its VCC is 3.05V~3.6V

.

The IC89LV52(51)A contains a 8K (4K) x 8 Flash; a 256

x 8 RAM (128 x 8 RAM); 32 I/O lines for either multi-

processor communications; I/O expansion or full duplex

UART; three (two) 16-bit timers/counters; a six-source

(five-source), two-priority-level, nested interrupt structure;

and on chip oscillator and clock circuit.

The IC89LV52(51)A can be expanded using standard

TTL compatible memory.

Figure 1. IC89LV52(51)A Pin Configuration: 40-pin DIP

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

T2/P1.0

T2EX/P1.1

P1.2

P1.3

P1.4

P1.5

P1.6

P1.7

RST

RxD/P3.0

TxD/P3.1

INT0/P3.2

INT1/P3.3

T0/P3.4

T1/P3.5

WR/P3.6

RD/P3.7

XTAL2

XTAL1

GND

VCC

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/PROG

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