GENERAL DESCRIPTION
The SAA56xx 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 incorporate an integrated Data Capture and display function for either Teletext or Closed Caption.

FEATURES
• Single-chip higher frequency microcontroller with integrated On-Screen Display (OSD)
• Versions available with integrated Data Capture
• Both active HIGH and active LOW reset pins
• OTP memory for both Program ROM and character sets
• In-System Programming (ISP) option for the embedded OTP memories using IEEE1149 (JTAG: Joint Test Action Group) interface
• Single power supply: 3.0 to 3.6 V
• 5 V tolerant digital inputs and I/O
• 32 I/O ports via individual addressable controls
• Larger Character ROM, up to 1020 characters of 12 × 10 pixels
• Smoothing capability on sized characters
• Programmable I/O for push-pull, open-drain and quasi-bidirectional and high-impedance
• Two port lines with 8 mA sink (at <0.4 V) capability, for direct drive of LED
• Single crystal oscillator for microcontroller, OSD and Data Capture
• Power reduction modes: Idle, Standby and Power-down
• Byte level I2C-bus up to 400 kHz dual port I/O
• 64 Dynamically Redefinable Characters for OSDs
• Increased special graphic characters allowing four colours per character
• Selectable character height 9, 10, 13 and 16 TV lines
• Pin compatibility throughout family
• Operating temperature: −20 to +70 °C