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SAA5290 Datasheet(PDF) 2 Page - NXP Semiconductors |
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SAA5290 Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 33 page  February 1995 2 Philips Semiconductors Preliminary specification One page Economy Teletext/TV microcontroller SAA5290 FEATURES General • Complete one page teletext decoder and TV microcontroller in a single 52-pin package • Eastern European, Western European and Turkish language variants covered in one device • Double size, double width and double height character capability for On-Screen Display (OSD) • Enhanced display features including meshing and shadowing • Separate display and acquisition timing for increased flexibility • Minimum peripheral component count • 525 line and 625 line display synchronization • Standby mode through power-down of teletext and analog hardware. Microcontroller • 16 kbytes masked ROM (16 kbytes EEPROM variant for product development) • 256 bytes of on-chip RAM • Six 6-bit Pulse Width Modulators (PWM) and one 14-bit precision PWM • 4-bit Digital-to-Analog Converter (DAC) and comparator with a 3-input multiplexer allowing implementation of 3 Analog-to-Digital Converters (ADC) in software • 2 high current (10 mA) open-drain outputs • Interrupt logic 0 triggered on rising and falling edges, providing pulse-width measurement for remote control decoding • Master and slave bit-level I2C-bus hardware. DESCRIPTION The SAA5290 is a single-chip one page teletext decoder and television control microcontroller. The device will decode 625-line based World System Teletext transmissions and provides television control functions and On-Screen Display (OSD) functions. The teletext decoder hardware is a derivative of the SAA5254 (IVT1.1X), and the TV control functionality provided by an on-chip industrial standard 80C51 microcontroller. A single-page static RAM is included on-board providing a complete one page teletext decoder and OSD memory. The SAA5290 is available as a mask-programmed ROM version. An EEPROM version is also available for product development. Both versions are available in an SDIP52 package. ORDERING INFORMATION Notes 1. nnn is a three-digit number referencing the microcontroller program ROM mask. 2. I is a digit number referring to the language variant of the SAA5290ZP/NV. TYPE NUMBER MEMORY PACKAGE NAME DESCRIPTION VERSION SAA5290ZP/nnn(1) ROM SDIP52 plastic shrink dual in-line package; 52 leads (600 mil) SOT247-1 SAA5290ZP/NVI(2) EEPROM SDIP52 plastic shrink dual in-line package; 52 leads (600 mil) SOT247-1 |
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