The W79E2051 MCU is a high speed 4T 8051 MCU operating at 2.4V ~ 5.5V and - 40 ℃ ~ 85 ℃, and provides 22.1184 MHz internal oscillator ( 2 % accuracy at 25 ℃, 5V ) , 128B Data Flash and ICP ( In-Circuit Programming ) . Package type DIP20. Can easily replace Atmel AT89C2051 pin to pin and code to code.
Target Application: Security/Alarm, iPod Docking, Projector, DVD Player, etc.
Key Features:
• Core
- 4T 8051 processor
- Max frequency of 24 MHz
- Operating voltage: 2.4V to 5.5V
- Temperature range: - 40 ℃ ~ 85 ℃
• Memory
- 2 KB of flash memory
- 256 B of SRAM
- 128 B of Data Flash
- ICP ( In-Circuit Programming )
• Connectivity
- One UART
• Clock Control
- 4 to 24 MHz crystal oscillator
- Internal 22.1184 MHz ( 2 % accuracy at 25 ℃, 5V )
- Internal 22.1184 or 11.0592 MHz configurable