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SAA5677HL Datasheet(PDF) 3 Page - NXP Semiconductors |
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SAA5677HL Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 116 page  2002 May 06 3 Philips Semiconductors Objective specification Enhanced TV microcontrollers with On-Screen Display (OSD) SAA567x; SAA569x 1 FEATURES • Single-chip higher frequency microcontroller with integrated On-Screen Display (OSD) • Support for 50/60 Hz, 100/120 Hz and Progressive Scan display modes. • Versions available with integrated Data Capture • Both active HIGH and active LOW reset pins • OTP memory for both Program ROM and character sets • Easy connection of external ROM • 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. 2 GENERAL DESCRIPTION The SAA567x; SAA569x 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. The devices offer all the features from the SAA56xx family with the addition of support for a range of Progressive Scan display modes. The Data Capture hardware can decode and display both 525-line and 625-line World System Teletext (WST), Closed Caption information, Video Programming System (VPS) information and Wide Screen Signalling (WSS) information. The same display hardware is used for Teletext, Closed Caption and On-Screen Display, which means that the display features available give greater flexibility to differentiate the TV set. The VBI data services supported by each device is specified in Chapter 4 The family of devices offers a range of memory variants with Program ROM sizes of 128 and 192 kbytes, also up to 14 kbytes of RAM. Another new feature in the SAA567x; SAA569x family of products supports the addition of external ROM to provide up to a total of 256 kbytes of program ROM (e.g. 192 kbytes internal + 64 kbytes external to the SAA567x; SAA569x) with no external logic. |
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