AT89LP51ID2

Single-cycle microcontroller with 64KB ISP flash and 12-clock compatibility mode. It includes 4KB EEPROM data memory, 2304 bytes RAM, 2KB ROM with UART-based Bootloader, PWM, UART, TWI, SPI, PCA, up to 42 I/Os, 10-bit A/D, dual Analog Comparators, an internal 8MHz RC oscillator, dual Oscillator support and on-chip debug.