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IS82C89 from INTERSIL

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IS82C89

Manufacturer: INTERSIL

CMOS Bus Arbiter

Partnumber Manufacturer Quantity Availability
IS82C89 INTERSIL 81 In Stock

Description and Introduction

CMOS Bus Arbiter The **IS82C89** is a CMOS **Priority Interrupt Controller** manufactured by **Intersil**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Intersil  
- **Technology:** CMOS  
- **Function:** Priority Interrupt Controller  
- **Compatibility:** Fully compatible with the Intel 8259A  
- **Operating Voltage:** 5V  
- **Package:** Available in 28-pin DIP and PLCC packages  
- **Operating Temperature Range:** Commercial (0°C to +70°C) and Industrial (-40°C to +85°C) versions  

### **Descriptions:**  
- The IS82C89 is a high-performance CMOS version of the industry-standard 8259A Priority Interrupt Controller.  
- It manages up to **8 interrupt requests** and can be cascaded to handle **64 interrupt levels**.  
- Designed for use in microprocessor-based systems to prioritize and manage interrupt requests efficiently.  

### **Features:**  
- **Fully compatible** with Intel 8259A in function and pinout.  
- **Low power consumption** due to CMOS technology.  
- **Programmable interrupt modes**, including fully nested, rotating priority, and polled modes.  
- **Edge and level-triggered interrupt inputs**.  
- **Buffered and non-buffered modes** for system flexibility.  
- **Automatic end-of-interrupt (EOI) mode** support.  
- **28-pin DIP and PLCC packaging** for easy integration.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

CMOS Bus Arbiter

Alternative Part Number

  • CP82C89 --: Same 82C89 CMOS bus arbiter function from Intersil in a different package/prefix, pin-compatible and directly interchangeable.
  • 82C89 --: Original Harris/Intersil 82C89 bus arbiter die, functionally identical with the same electrical specifications.
  • CS82C89 --: Intersil 82C89 variant in a different package option, same function and compatible timing characteristics.
  • MD82C89 --: Military/industrial temperature version of the 82C89 bus arbiter with identical logic and pinout, suitable when wider temperature range is acceptable.

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