DESCRIPTION
●The Philips microcontrollers described in this data sheet are high-performance static 80C51 designs incorporating Philips’ high-density CMOS technology with operation from 2.7 V to 5.5 V.
●They support both 6-clock and 12-clock operation. The 8xC31X2/51X2 and 8xC32X2/52X2/54X2/58X2 contain 128 byte RAM and 256 byte RAM respectively, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested interrup 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.
●FEATURES
●•80C51 Central Processing Unit
●–4 kbytes ROM/EPROM (80/87C51X2)
●–8 kbytes ROM/EPROM (80/87C52X2)
●–16 kbytes ROM/EPROM (80/87C54X2)
●–32 kbytes ROM/EPROM (80/87C58X2)
●–128 byte RAM (80/87C51X2 and 80C31X2)
●–256 byte RAM (80/87C52/54X2/58X2 and 80C32X2)
●–Boolean processor
●–Fully static operation
●–Low voltage (2.7 V to 5.5 V at 16 MHz) operation
●•12-clock operation with selectable 6-clock operation
●•Memory addressing capability
●–64 kbytes ROM and 64 kbytes RAM
●•Power control modes:
●–Clock can be stopped and resumed
●–Idle mode
●–Power-down mode
●•CMOS and TTL compatible
●•Two speed ranges at VCC= 5 V
●–0 to 30 MHz with 6-clock operation
●–0 to 33 MHz with 12-clock operation
