IS80C52
IS80C52
IS80C32
IS80C32
ISSI
NOVEMBER 1998
GENERAL DESCRIPTION
ISSI
®
®
CMOS SINGLE CHIP
LOW VOLTAGE
8-BIT MICROCONTROLLER
FEATURES
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•
•
•
•
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80C51 based architecture
8K x 8 ROM (IS80C52 only)
256 x 8 RAM
Three 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
– Encrypted verify (32 bytes)
– Lock bits (2)
Power save modes:
– Idle and power-down
Eight interrupt sources
Most instructions execute in 0.3
µs
CMOS and TTL compatible
Maximum speed: 40 MHz @ Vcc = 5V
Industrial temperature available
Packages available:
– 40-pin DIP
– 44-pin PLCC
– 44-pin PQFP
The
ISSI
IS80C52 and IS80C32 are high-performance
microcontrollers fabricated using high-density CMOS
technology. The CMOS IS80C52/32 is functionally
compatible with the industry standard 8052/32
microcontrollers.
The IS80C52/32 is designed with 8K x 8 ROM (IS80C52
only); 256 x 8 RAM; 32 programmable I/O lines; a serial
I/O port for either multiprocessor communications, I/O
expansion or full duplex UART; three 16-bit timer/counters;
an eight-source, two-priority-level, nested interrupt
structure; and an on-chip oscillator and clock circuit. The
IS80C52/32 can be expanded using standard TTL
compatible memory.
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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
V
CC
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
ALE
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. IS80C52/32 Pin Configuration:
40-pin PDIP
ISSI 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 1998, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC004-1D
11/19/98
1
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
