P80C31BH Datasheet - Intel

P80C31BH, (P80C31BH / P80C51BH) CHMOS Single-Chip 8-Bit Microcontroller

87C51/80C51BH/80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Commercial/Express 87C51/80C51BH/80C51BHP/80C31BH *See Table 1 for Proliferation Opt.
VCC: Supply voltage during normal, Idle and Power Down operations.

Features

* of the MCS-51 Family, as listed below: Pin P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7 Name RXD TXD INT0 INT1 T0 T1 WR RD Alternate Function Serial input line Serial output line External Interrupt 0 External Interrupt 1 Timer 0 external input Timer 1 external input External Data Memory Write strobe Exte

Applications

* The Idle mode freezes the CPU while allowing the RAM, timer/counters, serial port and interrupt system to continue functioning. The Power Down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. For the remainder of this document, the 87C51, 8

P80C31BH_Intel.pdf