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IS80C51-24PQI

Integrated Silicon Solution Inc
Part Number IS80C51-24PQI
Manufacturer Integrated Silicon Solution Inc
Description CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
Published Apr 7, 2005
Detailed Description IS80C51 IS80C31 IS80C51 IS80C31 CMOS SINGLE CHIP 8-BIT MICROCONTROLLER ISSI GENERAL DESCRIPTION ® ISSI ® NOVEMBER 1...
Datasheet PDF File IS80C51-24PQI PDF File

IS80C51-24PQI
IS80C51-24PQI

Overview
IS80C51 IS80C31 IS80C51 IS80C31 CMOS SINGLE CHIP 8-BIT MICROCONTROLLER ISSI GENERAL DESCRIPTION ® ISSI ® NOVEMBER 1998 FEATURES • • • • • • • • • • • • • • • 80C51 based architecture 4K x 8 ROM (IS80C51 only) 128 x 8 RAM 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 Power save modes: – Idle and power-down Six 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 IS80C51 and IS80C31 are high-performance microcontrollers fabricated using high-density CMOS technology.
The CMOS IS80C51/31 is functionally compatible with the industry standard 80C51 microcontrollers.
The IS80C51/31 is designed with 4K x 8 ROM (IS80C51 only); 128 x 8 RAM; 32 programmable I/O lines; a serial I/O port for either multiprocessor communications, I/O expansion or full duplex UART; two 16-bit timer/counters; a six-source, two-priority-level, nested interrupt structure; and an on-chip oscillator and clock circuit.
The IS80C51/31 can be expanded using standard TTL compatible memory.
P1.
0 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.
IS80C51/31 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...


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