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MC6803P-1 from MOTOROLA

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MC6803P-1

Manufacturer: MOTOROLA, MOT

1.25MHz; V(cc / in): -0.3 to +7.0V; 8-bit single-chip microcomputer (MCU)

Partnumber Manufacturer Quantity Availability
MC6803P-1,MC6803P1 MOTOROLA, MOT 805 In Stock

Description and Introduction

1.25MHz; V(cc / in): -0.3 to +7.0V; 8-bit single-chip microcomputer (MCU) # **MC6803P-1: A Reliable 8-Bit Microprocessor for Embedded Applications**  

The **MC6803P-1** is an 8-bit microprocessor from the renowned **Motorola 6800** family, designed for embedded control and computing applications. With its robust architecture, efficient instruction set, and versatile peripheral support, this component remains a trusted choice for engineers working on industrial automation, automotive systems, and legacy electronic designs.  

## **Key Features of the MC6803P-1**  

### **1. High-Performance 8-Bit Architecture**  
Built on Motorola’s proven 6800 core, the MC6803P-1 delivers reliable processing power with a **1 MHz clock speed**, ensuring efficient execution of instructions for real-time control tasks. Its 8-bit data bus and 16-bit address bus allow access to **64 KB of memory**, making it suitable for a wide range of embedded applications.  

### **2. Integrated On-Chip Peripherals**  
Unlike many microprocessors of its era, the MC6803P-1 includes **on-chip peripherals**, reducing the need for additional components. It features:  
- **128 bytes of RAM** for temporary data storage  
- **2 KB of ROM** for firmware storage  
- **16-bit timer/counter** for precise timing operations  
- **Serial Peripheral Interface (SPI)** for communication with external devices  

These integrated features simplify system design and lower overall component costs.  

### **3. Efficient Instruction Set**  
The MC6803P-1 supports the **6800 instruction set**, which includes **72 instructions** optimized for control-oriented tasks. With **direct, indexed, and relative addressing modes**, programmers can efficiently manage memory and data operations. The processor’s **low-power consumption** also makes it ideal for battery-powered or energy-sensitive applications.  

### **4. Industrial-Grade Reliability**  
Designed for demanding environments, the MC6803P-1 operates within a **wide temperature range**, ensuring stability in industrial and automotive settings. Its **40-pin DIP (Dual In-line Package)** provides easy integration into existing circuit designs, while its **robust construction** ensures long-term durability.  

## **Applications of the MC6803P-1**  
The MC6803P-1 has been widely used in:  
- **Industrial Control Systems** – Motor control, sensor interfacing, and automation  
- **Automotive Electronics** – Engine management, dashboard instrumentation  
- **Consumer Electronics** – Early home computers, gaming consoles, and peripherals  
- **Legacy System Maintenance** – Repair and upgrades for older electronic equipment  

## **Why Choose the MC6803P-1?**  
For engineers working with legacy systems or seeking a dependable 8-bit processor, the MC6803P-1 offers:  
- **Proven performance** in embedded control applications  
- **Reduced system complexity** with integrated peripherals  
- **Compatibility** with existing 6800-based designs  
- **Long-term availability** for maintenance and repairs  

While newer microcontrollers have since surpassed the MC6803P-1 in processing power, its simplicity, reliability, and ease of use continue to make it a valuable component in specialized applications.  

For those requiring a stable, well-documented 8-bit microprocessor, the **MC6803P-1** remains a solid choice, combining Motorola’s engineering excellence with decades of real-world validation.

Application Scenarios & Design Considerations

1.25MHz; V(cc / in): -0.3 to +7.0V; 8-bit single-chip microcomputer (MCU)

Alternative Part Number

  • HD6803P --: Second-source 6803-series microprocessor with compatible pinout and instruction set, widely used as a drop-in replacement for Motorola 6803 parts.
  • MC6802P --: Same 6800-family 40-pin DIP microprocessor with on-chip clock and RAM, functionally similar and often interchangeable in legacy designs.
  • EF6803P --: Licensed 6803-compatible microprocessor in DIP package, offering equivalent functionality for replacement in older Motorola-based systems.

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