P8xCx70

Features:

· Fully static 80C51 CPU
· 64-kbyte programmable ROM
· 1-kbyte RAM
· On-chip 12 MHz crystal oscillator
· Eight 7-bit PWM outputs for analog controls
· Three input 4-bit software Analog-to-Digital Converters (ADC)
· Power-on reset and Watchdog Timer
· 29 I/O lines via individual addressable controls
· Eight port lines (Port 2) with 10 mA LED sink (<1 V) capability
· On-Screen Display (OSD) and Closed Caption (CC) with V-chip function
· Byte-level I2C-bus interface up to 400 kHz
· Three power reduction modes: Standby, Idle and Power-down
· Power supply: 5.0 V ±10%
· Operating temperature: -20 to +70 °C
· 52-pin shrink dual in-line package (SDIP52).


Pinout




Description

The P8xCx70 family consists of the following devices:
· P83C270
· P83C370
· P83C570
· P83C770
· P87C770.
The term P8xCx70 is used throughout this data sheet to refer to all family members; differences between devices
are highlighted in the text.
The P8xCx70 family of microcontrollers are 8-bit, 80C51-based microcontrollers specifically designed for the NTSC TV market. Each device has an On-Screen Display, control functions and Closed Caption that extracts, decodes (software) and displays caption signals from NTSC TV signals. Extended Data Service (XDS) is via the software command interpreter and the V-chip is also implemented.