GENERAL DESCRIPTION
The SAA529x, SAA529xA and SAA549x family of microcontrollers are a derivative of the Philips’ industry-standard 80C51 microcontroller and are intended for use as the central control mechanism in a television receiver. They provide control functions for the television system and include an integrated teletext function.
The teletext hardware has the capability of decoding and displaying both 525-line and 625-line World System
Teletext. The same display hardware is used both for Teletext and On-Screen Display, which means that the display features give greater flexibility to differentiate the TV set.

FEATURES
General
• Single chip microcontroller with integrated teletext
   decoder
• Single +5 V power supply
• Single crystal oscillator for teletext decoder, display and
   microcontroller
• Teletext function can be powered-down independently
   of microcontroller function for reduced power
   consumption in stand-by
• Pin compatibility throughout family.

Microcontroller
• 80C51 microcontroller core
• 16/32/64 kbyte mask programmed ROM
• 256/768/1280 bytes of microcontroller RAM
• Eight 6-bit Pulse Width Modulator (PWM) outputs for
   control of TV analog signals
• One 14-bit PWM for Voltage Synthesis Tuner control
• Four 8-bit Analog-to-Digital converters
• 2 high current open-drain outputs for directly driving
   LED’s etc.
• I2C-bus interface
• External ROM and RAM capability on QFP80 package
   version.