at89c51 Datasheet - Atmel
The AT89C51 is an 8-bit microcontroller from the MCS-51 family, featuring 4K bytes of flash memory, 128 bytes of RAM, and a wide range of peripherals including...
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📝 Component Overview
The AT89C51 is an 8-bit microcontroller from the MCS-51 family, featuring 4K bytes of flash memory, 128 bytes of RAM, and a wide range of peripherals including timers, counters, and serial communication interfaces. It operates at a maximum frequency of 24 MHz and is suitable for a variety of applications, including industrial control, consumer electronics, and automotive systems.
Key Features and Benefits
- 8-bit microcontroller
- 4K bytes of flash memory
- 128 bytes of RAM
- MCS-51 instruction set
- Timers and counters
- Serial communication interfaces
- Operating frequency up to 24 MHz
- Low power consumption
- Wide range of peripherals
Typical Applications
- Industrial control systems
- Consumer electronics
- Automotive systems
- Medical devices
- Telecommunication equipment
- Computer peripherals
- Robotics and automation
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -65°C to +150°C |
| Supply Voltage | 4.5V to 5.5V |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Current | Active mode, 12 MHz | 10 mA | 15 mA | 20 mA | mA |
| Standby Current | Idle mode, 12 MHz | 50 μA | 100 μA | 200 μA | μA |
Package Information
- PDIP: 40-pin dual in-line package
- PLCC: 44-pin plastic leaded chip carrier
- PQFP: 44-pin plastic quad flat pack
Pin Configuration
- Pin 1: VCC - Supply voltage
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
When designing with the AT89C51, consider the operating frequency, power consumption, and memory requirements of the application. Ensure that the microcontroller is properly configured and initialized before use.
Installation Guidelines
The AT89C51 is available in various packages, including PDIP, PLCC, and PQFP. Ensure that the package is properly mounted and connected to the PCB to prevent damage and ensure reliable operation.
Operational Notes
The AT89C51 is a low-power microcontroller, but it still requires proper power management to ensure reliable operation. Use a suitable power supply and follow the recommended operating conditions to prevent damage and ensure optimal performance.