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UPD8749HC

High-Speed, 8-Bit, Single-Chip Hmos Microcomputers

Partnumber Manufacturer Quantity Availability
UPD8749HC 122 In Stock

Description and Introduction

High-Speed, 8-Bit, Single-Chip Hmos Microcomputers The **UPD8749HC** is a microcontroller manufactured by **NEC (now Renesas Electronics)**.  

### **Specifications:**  
- **Architecture:** 8-bit  
- **CPU Core:** Based on the 8048 microcontroller family  
- **Clock Speed:** Typically operates at **11 MHz**  
- **Program Memory (ROM):** 2 KB  
- **RAM:** 128 bytes  
- **I/O Ports:** 27 programmable I/O lines  
- **Timers:** 8-bit timer/counter  
- **Interrupts:** Supports external and timer interrupts  
- **Operating Voltage:** 5V (standard CMOS logic levels)  
- **Package:** 40-pin DIP (Dual In-line Package)  

### **Descriptions and Features:**  
- Designed for embedded control applications  
- Includes an on-chip oscillator for clock generation  
- Features a built-in serial I/O port for communication  
- Supports single-step execution for debugging  
- Low-power consumption in standby mode  
- Compatible with the MCS-48 instruction set  

This microcontroller was commonly used in industrial control systems, consumer electronics, and early computer peripherals.

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