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ID82C55A-5 from HAR/INT,Intersil

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ID82C55A-5

Manufacturer: HAR/INT, INTERSIL

CMOS Programmable Peripheral Interface
Partnumber Manufacturer Quantity Availability
ID82C55A-5,ID82C55A5 HAR/INT, INTERSIL 1167 In Stock

Description and Introduction

CMOS Programmable Peripheral Interface The **82C55A-5** is a programmable peripheral interface (PPI) chip manufactured by **Harris Semiconductor (HAR)** and **Intel (INT)**.  

### **Key Specifications:**  
- **Manufacturers:** Harris Semiconductor (HAR) / Intel (INT)  
- **Part Number:** 82C55A-5  
- **Type:** CMOS Programmable Peripheral Interface (PPI)  
- **Operating Voltage:** 5V  
- **Speed Grade:** -5 (5 MHz operation)  
- **Package:** Typically available in 40-pin DIP (Dual In-line Package)  

### **Descriptions & Features:**  
- **Programmable I/O Ports:** Three 8-bit ports (Port A, Port B, Port C) that can be configured for input or output.  
- **Modes of Operation:**  
  - **Mode 0 (Basic Input/Output):** Simple I/O without handshaking.  
  - **Mode 1 (Strobed Input/Output):** Handshake-based data transfer.  
  - **Mode 2 (Bidirectional Bus):** Allows bidirectional data transfer (only Port A).  
- **Bit Set/Reset (BSR) Mode:** Allows individual bits of Port C to be set or reset.  
- **CMOS Technology:** Low power consumption compared to NMOS versions.  
- **Compatibility:** Backward-compatible with the NMOS 8255A.  
- **Applications:** Used in microprocessor-based systems for interfacing with peripherals such as keyboards, displays, and ADCs.  

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

Application Scenarios & Design Considerations

CMOS Programmable Peripheral Interface

Alternative Part Number

  • CP82C55A-5 --: Same CMOS 82C55A programmable peripheral interface with 5 MHz rating, direct functional equivalent from a different series prefix.
  • CS82C55A-5 --: Harris CMOS 82C55A PPI rated at 5 MHz, same core function and pinout in a different package/prefix variant.
  • W82C55A-5 --: Winbond second-source CMOS 82C55A peripheral interface at 5 MHz, pin-compatible drop-in alternative.
  • W82C55A --: Second-source CMOS 8255A-compatible PPI with identical register set and pinout, direct drop-in replacement.
  • OKI82C55A --: CMOS 8255A-compatible peripheral interface offering equivalent functionality and timing for 5 MHz operation.

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