SAA5290 Ver la hoja de datos (PDF) - Philips Electronics

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SAA5290

One page Economy Teletext/TV microcontroller

Philips Electronics 

Philips Semiconductors

One page Economy Teletext/TV

microcontroller

Preliminary specification

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

TYPE NUMBER MEMORY

SAA5290ZP/nnn(1) ROM

SAA5290ZP/NVI(2) EEPROM

NAME

SDIP52

SDIP52

PACKAGE

DESCRIPTION

plastic shrink dual in-line package; 52 leads (600 mil)

plastic shrink dual in-line package; 52 leads (600 mil)

VERSION

SOT247-1

SOT247-1

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.

February 1995

2

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