ST9294 Datasheet | STMicroelectronics

® FUNCTIONAL DESCRIPTION 24K ROM HCMOS MCU WITH ON SCREEN DISPLAY AND CLOSED-CAPTION DATA SLICER 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, underline, flash, transparent and fringe attribute options Digital Data Slicer extracting closed caption data from video 8 8-bit PWM D/A outputs with repetition frequency 2 to 32k Hz 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 prescaler 3 channel Analog to Digital Converter, with integral sample and hold, fast 5.75µs 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-piler, archiver, graphic oriented debugger and hardware emulators Real Time Operating System Windowed EPROM parts available for prototyping and pre-production development phases PSDIP42 PSDIP56 (Ordering Information at the end of the Datasheet) May 1993 This is Preliminary Data from SGS-THOMSON. Details are subject to change without notice. 1/6 Figure 1a. 42 Pin Shrink DIP Pinout Figure 1b. 56 Pin Shrink DIP Pinout ST9294J Pin Description Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Pin name P2.0/INT7 RESET P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0 CCVideo P3.6 P3.5 P3.4 P3.3/B P3.2/G P3.1/R P3.0/FB P5.1/SDIO P5.0/SCK/INT2 VDD Pin 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 Pin name...