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IC89C51A-24PL Datasheet

  • IC89C51A-24PL

  • CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8(4)-Kbytes of F...

  • 22頁

  • ICSI

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IC89C52(51)A
CMOS SINGLE CHIP
8-BIT MICROCONTROLLER
with 8(4)-Kbytes of FLASH
FEATURES
鈥?80C52(51) based architecture
鈥?8(4)-Kbytes Flash memory with fast-pulse
programming algorithm and software protection
鈥?256 x 8 RAM (128x8 RAM)
鈥?Three (Two)16-bit Timer/Counters
鈥?Full duplex serial channel
鈥?Boolean processor
鈥?Four 8-bit I/O ports, 32 I/O lines
鈥?Memory addressing capability
鈥?64K ROM and 64K RAM
鈥?Program memory lock
鈥?Lock bits (3)
鈥?Power save modes:
鈥?Idle and power-down
鈥?Eight interrupt sources
鈥?Most instructions execute in 0.3 碌s
鈥?CMOS and TTL compatible
鈥?Maximum speed: 40 MHz @ Vcc = 5V
鈥?Packages available:
鈥?40-pin DIP
鈥?44-pin PLCC
鈥?44-pin PQFP
GENERAL DESCRIPTION
The ICSI IC89C52(51)A is a high-performance micro-
controller fabricated with high-density CMOS technology.
The CMOS IC89C52A is functionally compatible with the
NMOS Intel 8052(51), Philips鈥?80C52(51) micro controller.
The IC89C52(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 IC89C52(51)
A can be expanded using standard TTL compatible memory.
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
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
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
Figure 1. IC89C52(51)A Pin Configuration: 40-pin DIP
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. 漏 Copyright 2000, Integrated Circuit Solution Inc.
I egr ed C i cui
nt at
r tSol i I
uton nc.
MC008-0C 11/27/2001
1

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