P83C834 Datasheet (PDF) Download
NXP Semiconductors
P83C834

Description

The P83C434 and P83C834 are low-cost microcontrollers of the 80C51 family, with LCD drivers.

Key Features

  • P83C434; P83C834
  • Timer 0 external input replaced by a direct connection to the 32 kHz oscillator output
  • Timer 1 external input is connected to pin P0.0 (Port 0); alternate function of P0.0
  • Standard serial interface and its control register is not present
  • Wake-up from Power-down mode is also possible by means of an interrupt
  • 80C51 type core
  • Optimized for EMC (Electromagnetic patibility)
  • Clock frequency fclk = 1 to 12 MHz
  • 12 I/O lines, quasi-bidirectional
  • Gated interrupt on 8 I/O lines: - P0.0 to P0.3 when LOW - P0.4 to P0.7 when LOW or HIGH