This document introduces the features and characteristics of Intersil 82C89 CMOS Bus Arbiter
The 82C89 Bus Arbiter is a CMOS device that provides full bus arbitration and control for multi‑processor systems, typically used with 80C86/80C88 processors. It offers high output current, capacitive drive, low power operation, and multiple operating modes for flexible system configuration.
The document includes functional diagrams, pin descriptions, priority‑resolving techniques, mode of operation details, test circuits, and die characteristics, along with ordering information and packaging data.
| Operating Temperature Range | -55°C to +125°C |
|---|---|
| Supply Voltage | +5 V |
| Maximum Power Consumption | 4 mA/MHz (max) |
| Pin Compatibility | Pin compatible with Bipolar 8289 |
The device operates from –55 °C up to +125 °C.
It uses a +5 V power supply pin.
Maximum power consumption is 4 mA per MHz.