P87C51
Description
The Philips 8XC51/31 is a high-performance static 80C51 design fabricated with Philips high-density CMOS technology with operation from 2.7V to 5.5V. The 8XC51/31 contains a 4k × 8 ROM, a 128 × 8 RAM, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART, and on-chip oscillator and clock circuits.
Key Features
- 8051 Central Processing Unit - 4k × 8 ROM (80C51) - 128 × 8 RAM - Three 16-bit counter/timers - Boolean processor - Full static operation - Low voltage (2.7V to 5.5V@ 16MHz) operation
- Memory addressing capability - 64k ROM and 64k RAM
- Power control modes: - Clock can be stopped and resumed - Idle mode - Power-down mode
- CMOS and TTL compatible
- TWO speed ranges at VCC = 5V - 0 to 16MHz - 0 to 33MHz
