82C89 - CMOS Bus Arbiter

Renesas

82C89 Datasheet Preview — Preview of 82C89 PDF

Datasheet Details

Part number	82C89
Manufacturer	Renesas ↗
File Size	717.73 KB
Description	CMOS Bus Arbiter
Datasheet	82C89-Renesas.pdf

82C89 Product details

Description

PIN SYMBOL NUMBER TYPE DESCRIPTION VCC GND 20 10 VCC: The +5V Power supply pin.A 0.1F capacitor between pins 10 and 20 is recommended for decoupling.GROUND.S0, S1, S2 1, 18-19 I STATUS INPUT PINS: The status input pins from an 80C86, 80C88 or 8089 processor.The 82C89 decodes these pins to initiate bus request and surrender actions.(See Table 1).CLK 17 I CLOCK: From the 82C84A or 82C85 clock chip and serves to establish when bus arbiter actions are initiated.LOCK 16 I LOCK: A pr

Features

Pin Compatible with Bipolar 8289.
Performance Compatible with: - 80C86/80C88.
(5/8MHz).
Provides Multi-Master System Bus Control and Arbitration.
Provides Simple Interface with 82C88/8288 Bus Controller.
Synchronizes 80C86/8086, 80C88/8088 Processors with Multi-Master Bus.
Bipolar Drive Capability.
Four Operating Modes for Flexible System Configuration.
Low Power Operation - ICCSB.

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Published: Jun 3, 2020 |