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UPD8088D from NEC

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UPD8088D

Manufacturer: NEC

High-performance 8-bit microprocessor, 5MHz

Partnumber Manufacturer Quantity Availability
UPD8088D NEC 97 In Stock

Description and Introduction

High-performance 8-bit microprocessor, 5MHz The **UPD8088D** is a microprocessor manufactured by **NEC**. Below are the factual details about its specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** NEC (Nippon Electric Company)  
- **Part Number:** UPD8088D  
- **Architecture:** 8-bit/16-bit hybrid (based on Intel 8088)  
- **Clock Speed:** Typically operates at **5 MHz**  
- **Data Bus Width:** 8-bit (externally), 16-bit (internally)  
- **Address Bus Width:** 20-bit (supports up to **1 MB of memory**)  
- **Instruction Set:** Compatible with Intel 8088  
- **Package Type:** **DIP (Dual In-line Package)**, likely 40-pin  
- **Power Supply:** **+5V DC**  

### **Descriptions:**  
- The **UPD8088D** is an NEC-manufactured variant of the **Intel 8088** microprocessor.  
- It was used in early personal computers and embedded systems.  
- Functionally similar to the Intel 8088, it executes the same instruction set.  

### **Features:**  
- **Binary Compatibility:** Fully compatible with Intel 8088 software.  
- **Memory Access:** Supports segmented memory addressing (up to 1 MB).  
- **Interrupt Handling:** Includes hardware interrupts (NMI, INTR).  
- **I/O Ports:** Capable of addressing **64K I/O ports**.  
- **On-Chip Registers:** Includes fourteen 16-bit registers (AX, BX, CX, DX, etc.).  
- **DMA Support:** Works with DMA controllers for high-speed data transfer.  

This information is based on documented specifications of the **UPD8088D** by NEC. No additional suggestions or guidance are included.

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