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UPD8255A-5 from NEC

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UPD8255A-5

Manufacturer: NEC

PROGRAMMABLE PERIPHERAL INTERFACE

Partnumber Manufacturer Quantity Availability
UPD8255A-5,UPD8255A5 NEC 750 In Stock

Description and Introduction

PROGRAMMABLE PERIPHERAL INTERFACE The UPD8255A-5 is a programmable peripheral interface (PPI) manufactured by NEC. Below are its key specifications, descriptions, and features:  

### **Manufacturer:** NEC (Nippon Electric Company)  

### **Specifications:**  
- **Device Type:** Programmable Peripheral Interface (PPI)  
- **Operating Voltage:** 5V  
- **Speed Grade:** -5 (5 MHz operation)  
- **Package Type:** 40-pin DIP (Dual In-line Package)  
- **I/O Ports:** Three 8-bit ports (Port A, Port B, Port C)  
- **Modes of Operation:**  
  - **Mode 0:** Basic Input/Output  
  - **Mode 1:** Strobed Input/Output  
  - **Mode 2:** Bidirectional Bus  
- **Compatibility:** Intel 8255A-compatible  

### **Descriptions:**  
The UPD8255A-5 is a general-purpose I/O interface IC designed for interfacing peripheral devices to microprocessors. It provides flexible I/O port configurations and is widely used in embedded systems, industrial control, and data acquisition applications.  

### **Features:**  
- Three independent 8-bit I/O ports  
- Programmable modes for different I/O configurations  
- TTL-compatible inputs and outputs  
- Direct bit set/reset capability for Port C  
- Low power consumption  
- Fully static operation  

This information is based on NEC's datasheet for the UPD8255A-5.

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