Description
The AT89C2051-24PU is a low-voltage, high-performance CMOS 8-bit microcontroller housed in a compact 20-pin DIP package. Compatible with the industry-standard MCS-51 instruction set, this device integrates a versatile 8-bit CPU with 2KB of flash memory on a monolithic chip. Designed for flexibility and cost-effectiveness, it includes an on-chip analog comparator, clock circuitry, and dedicated power-saving modes, making it an excellent solution for a wide variety of embedded control tasks.
Key Features
- 8051 Architecture: Fully compatible with the industry-standard MCS-51 instruction set.
- Flash Memory: 2KB of reprogrammable flash with a two-level program memory lock for security.
- Efficient Design: Fully static operation from 0Hz to 24MHz and integrated on-chip oscillator.
- Power Management: Includes software-selectable idle and power-down modes to minimize energy consumption.
- Integrated Peripherals: Features two 16-bit timer/counters, a programmable serial UART, and 15 programmable I/O lines.
- Robust Interrupts: Supports six distinct interrupt sources for responsive system control.
Applications
- General Embedded Control: Versatile enough for simple control logic and small-scale automation.
- Consumer Electronics: Cost-effective controller for integrated appliances and basic electronic devices.
- Industrial Instrumentation: Reliable operation in temperature-extended environments.
- System Logic: Excellent for replacing discrete logic or as a dedicated I/O controller.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AT89C2051-24PU |
| Brand | Microchip |
| Operating Frequency | Up to 24 MHz |
| Supply Voltage | 2.7V to 6V |
| Operating Temp | –40°C to +85°C |
| Package/Case | DIP (20 Pins) |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. Please refer to the official Microchip datasheet for complete electrical characteristics and application design details.







