GENERAL DESCRIPTION
The SAA55xx standard 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, OSD, and some versions include an integrated data capture and display function.

FEATURES
• Single-chip microcontroller with integrated On-Screen Display (OSD)
• Versions available with integrated data capture
• One Time Programmable (OTP) memory for both program Read Only Memory (ROM) and character sets
• Single power supply: 3.0 to 3.6 V
• 5 V tolerant digital inputs and I/O
• 29 I/O lines via individual addressable controls
• Programmable I/O for push-pull, open-drain and quasi-bidirectional
• Two port lines with 8 mA sink (at <0.4 V) capability, for direct drive of Light Emitting Diode (LED)
• Single crystal oscillator for microcontroller, OSD and data capture
• Power reduction modes: Idle and Power-down
• Byte level I2C-bus with dual port I/O
• Pin compatibility throughout family
• Operating temperature: −20 to +70 °C.