ST9294

FUNCTIONAL DESCRIPTION

®

This is Preliminary Data from SGS-THOMSON. Details are subject to change without notice.

May 1993

24K ROM HCMOS MCU WITH

ON SCREEN DISPLAY AND CLOSED-CAPTION DATA SLICER

(Ordering Information at the end of the Datasheet)

Register oriented 8/16 bit CORE with

RUN, WFI and HALT modes

Minimum instruction cycle time: 500ns

(12MHz internal)

12 to 32K bytes of ROM,

384/640 bytes of RAM,

224 general purpose registers available as RAM,

accumulators or index registers (Register File)

42-lead Shrink DIP package or

56-lead Shrink DIP package

Interrupt handler and Serial Peripheral Interface

as standard features

31 (42 pin package) / 42 (56 pin package) fully

programmable I/O pins

34 character x15 rows software programmable

On Screen Display module with colour, italic, un-

derline, flash, transparent and fringe attribute

options

Digital Data Slicer extracting closed caption data

from video

8 8-bit PWM D/A outputs with repetition fre-

quency 2 to 32kHz and 12V Open Drain

Capability

16 bit Timer with 8 bit Prescaler, able to be used

as a Watchdog Timer

16-bit programmable Slice Timer with 8-bit pres-

caler

3 channel Analog to Digital Converter, with inte-

gral sample and hold, fast 5.75

µs conversion

time, 6-bit guaranteed resolution

Rich Instruction Set and 14 Addressing modes

Division-by-Zero trap generation

Versatile Development tools, including assembler,

linker, C-compiler, archiver, graphic oriented de-

bugger and hardware emulators

Real Time Operating System

Windowed EPROM parts available for prototyp-

ing and pre-production development phases

PSDIP42

PSDIP56

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