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IS82C59A

CMOS Priority Interrupt Controller

Partnumber Manufacturer Quantity Availability
IS82C59A 164 In Stock

Description and Introduction

CMOS Priority Interrupt Controller The **IS82C59A** is a CMOS Priority Interrupt Controller (PIC) manufactured by **Intersil (now Renesas Electronics)**. Below are its key specifications, descriptions, and features based on available factual data:

### **Specifications:**  
- **Technology:** CMOS  
- **Operating Voltage:** 5V ±10%  
- **Operating Temperature Range:**  
  - Commercial: **0°C to +70°C**  
  - Industrial: **-40°C to +85°C**  
- **Package Type:** 28-pin **DIP (Dual In-line Package)** or **PLCC (Plastic Leaded Chip Carrier)**  
- **Interrupt Handling:**  
  - **8-level priority interrupt controller**  
  - Expandable to **64 levels** using master-slave configuration  
- **Compatibility:** Fully compatible with **Intel 8259A**  

### **Descriptions:**  
- The **IS82C59A** is a programmable interrupt controller designed to manage multiple interrupt requests from peripheral devices in microprocessor-based systems.  
- It resolves priority among interrupts and provides the processor with the highest-priority interrupt vector.  
- Used in **x86-based systems** and other applications requiring interrupt management.  

### **Features:**  
1. **Fully Programmable:** Supports edge/level-triggered interrupt modes.  
2. **Cascadable Configuration:** Can be cascaded with additional **82C59A** chips for **64 interrupt levels**.  
3. **Individual Request Masking:** Each interrupt request (IRQ) can be masked individually.  
4. **Automatic EOI (End-of-Interrupt) Mode:** Supports automatic or manual interrupt termination.  
5. **Low Power Consumption:** CMOS technology ensures efficient power usage.  
6. **Compatibility:** Pin-compatible and functionally equivalent to the **Intel 8259A**.  

This information is based on the manufacturer's datasheet and technical documentation. For exact electrical characteristics and timing diagrams, refer to the official datasheet.

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