P87C51X2BA [FREESCALE]

The Philips 80C51 8-bit microcontroller family features high-performance static 80C51 designs with Philips’ high-density CMOS technology, operating from 2.7 V to 5.5 V. It supports both 6-clock and 12-clock operation, with memory options of 4K/8K/16K/32K ROM/OTP and 128/256 bytes RAM. The devices include 32 I/O lines, three 16-bit timers/counters, a six-source four-priority level nested interrupt structure, a full-duplex enhanced UART, and on-chip oscillator and clock circuits. Low-power modes (idle and power-down) are available, and the design is static, allowing clock stop without data loss. Additional features include dual data pointers, security bits, encryption array, programmable clock-out pin, and low EMI characteristics.