8051 Family AT89C2051 Series Microcontrollers 8位微控制器:

The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2KB of Flash programmable and erasable read-only memory (PEROM). By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C2051 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications.

• Fully Static Operation: Up to 24 MHz
• Flash: 2K bytes, RAM: 128B
• 6x Interrupt Sources
• Interface: UART
• Direct LED Drive Outputs
• Low-power Idle and Power-down Modes
• 15 I/O lines
• On-chip Analog Comparator
• 2x 16 bit timer/Counters
• Applications: LED lighting, House hold application.