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IS80LV31-40PLI Datasheet(PDF) 1 Page - Integrated Silicon Solution, Inc |
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IS80LV31-40PLI Datasheet(HTML) 1 Page - Integrated Silicon Solution, Inc |
1 / 43 page IS80LV51 IS80LV31 Integrated Silicon Solution, Inc. 1 ADVANCE INFORMATION MC018-0A 10/01/98 ISSI® 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. IS80LV51 IS80LV31 CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER ADVANCE INFORMATION OCTOBER 1998 FEATURES • 80C51 based architecture • 4K x 8 ROM (IS80LV51 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 • Programmable lock – Lock bits (2) • 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 = 3.3V • Industrial temperature available • Packages available: – 40-pin DIP – 44-pin PLCC – 44-Pin PQFP GENERAL DESCRIPTION The ISSI IS80LV51 and IS80LV31 are high-performance microcontrollers fabricated using high-density CMOS technology. The CMOS IS80LV51/31 is functionally compatible with the industry standard 80C51 microcontrollers. The IS80LV51/31 is designed with 4K x 8 ROM (IS80LV51 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 IS80LV51/31 can be expanded using standard TTL compatible memory. Figure 1. IS80LV51/31 Pin Configuration: 40-pin PDIP 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 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 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 ISSI® |
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