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M80C51 from OKI

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M80C51

Manufacturer: OKI

CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

Partnumber Manufacturer Quantity Availability
M80C51 OKI 50 In Stock

Description and Introduction

CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER The M80C51 is a microcontroller manufactured by OKI. Below are the specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Architecture:** 8-bit  
- **Core:** 80C51 (MCS-51 compatible)  
- **Clock Speed:** Up to 12 MHz  
- **Program Memory (ROM):** 4KB (expandable externally)  
- **RAM:** 128 bytes (internal)  
- **I/O Ports:** 32 programmable I/O lines (4 ports)  
- **Timers/Counters:** 2 × 16-bit  
- **Serial Communication:** UART (Full-duplex)  
- **Interrupt Sources:** 5 (2 external, 3 internal)  
- **Operating Voltage:** 4.5V to 5.5V  
- **Package Options:** 40-pin DIP, PLCC, QFP  

### **Descriptions:**  
The M80C51 is a CMOS-based microcontroller compatible with the Intel MCS-51 architecture. It is designed for embedded control applications, offering a balance of performance, power efficiency, and integration.  

### **Features:**  
- **MCS-51 Instruction Set Compatibility**  
- **Low Power Consumption (CMOS Technology)**  
- **Boolean Processor for Bit Manipulation**  
- **Expandable Memory (External ROM/RAM Support)**  
- **On-Chip Oscillator (Crystal or External Clock Input)**  
- **Power-Saving Idle and Power-Down Modes**  
- **Industrial Temperature Range (-40°C to +85°C)**  

This information is strictly factual and derived from Ic-phoenix technical data files.

Application Scenarios & Design Considerations

CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

Alternative Part Number

  • P80C51 --: Intel 8051-family microcontroller with the same core and pinout, widely available and a direct functional substitute for the OKI M80C51.
  • AT89C51 --: Flash-based 8051-compatible MCU with matching pinout and instruction set, easy to program and a common replacement for mask-ROM 80C51 devices.
  • DS89C450 --: 8051-compatible microcontroller with the same architecture and pinout, offering higher performance and a drop-in style upgrade path.

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