The Atmel AT89C2051 is an 8051-based Fully Static 24MHz CMOS controller with 15 I/O Lines, 2 Timers/Counters, 6 Interrupts/2 Priority Levels, Analog Comparator, LED Drive Outputs, UART, Two-level Program Memory Lock, 2K Bytes Flash Memory, 128 Bytes On-chip RAM. Pusha t exodus 231 free mp3 download.

The 8051 (also known as MCS-51) is an MCU design from the 80's that remains popular today. Modern 8051-compatible microcontrollers are available from multiple vendors, in all shapes and sizes, and with a wide range of peripherals. In this instructable we will be looking at the AT89C2051 MCU from Atmel. AT89C2051 is a small (2Kbyte Flash, 128byte RAM), cheap (~$1.40 per chip) microcontroller. Features: • 2.7-6V operation • 15 I/O lines • 2 timers (16 bit) • Internal and external interrupts • UART • On-chip analog comparator • Up to 2MIPS with a 24MHz clock.