IS80LV52 Datasheet, PDF (1/48 Pages) Integrated Silicon Solution, Inc – CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER

I^IISSS⁸⁸⁰⁰8^LL0^VV53L²²V52
IS80LV32
CMOS SINGLE CHIP
LOW VOLTAGE
8-BIT MICROCONTROLLER
FEATURES
• 80C51 based architecture
• 8K x 8 ROM (IS80LV52 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 = 3.3V
• Industrial temperature available
• Packages available:
– 40-pin DIP
– 44-pin PLCC
– 44-pin PQFP
ISS^ISI^SI®®
ADVANCE INFORMATION
OCTOBER 1998
GENERAL DESCRIPTION
The ISSI IS80LV52 and IS80LV32 are high-performance
microcontrollers fabricated using high-density CMOS
technology. The CMOS IS80LV52/32 is functionally
compatible with the industry standard 8052/32
microcontrollers.
The IS80LV52/32 is designed with 8K x 8 ROM (IS80LV52
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
IS80LV52/32 can be expanded using standard TTL
compatible memory.
T2/P1.0 1
T2EX/P1.1 2
P1.2 3
P1.3 4
P1.4 5
P1.5 6
P1.6 7
P1.7 8
RST 9
RxD/P3.0 10
TxD/P3.1 11
INT0/P3.2 12
INT1/P3.3 13
T0/P3.4 14
T1/P3.5 15
WR/P3.6 16
RD/P3.7 17
XTAL2 18
XTAL1 19
GND 20
40 VCC
39 P0.0/AD0
38 P0.1/AD1
37 P0.2/AD2
36 P0.3/AD3
35 P0.4/AD4
34 P0.5/AD5
33 P0.6/AD6
32 P0.7/AD7
31 EA
30 ALE
29 PSEN
28 P2.7/A15
27 P2.6/A14
26 P2.5/A13
25 P2.4/A12
24 P2.3/A11
23 P2.2/A10
22 P2.1/A9
21 P2.0/A8
Figure 1. IS80LV52/32 Pin Configuration:
40-pin PDIP
This document contains ADVANCE INFORMATION data. 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
1
ADVANCE INFORMATION MC019-0A
10/01/98