R195E

GENERAL DESCRIPTION

INTRODUCTION
The ST92R195B microcontroller is developed and manufactured by STMicroelectronics using a proprietary n-well HCMOS process. Its performance derives from the use of a flexible 256-register programming model for ultra- fast context switching and real-time event response.

■ Register File based 8/16 bit Core Architecture with RUN, WFI, SLOW and HALT modes
■ 0°C to +70°C Operating Temperature Range available
■ Up to 24 MHz Operation @ 5V±10%
■ Minimum instruction cycle time: 375ns at 16 MHz internal clock
■ 4 Mbytes address space
■ 256 Bytes RAM of Register file (accumulators or index registers)
■ 1024 Bytes of on-chip static RAM
■ 8K Bytes of TDSRAM (Teletext and Display Storage RAM)
■ 80-lead QFP package
■ 23 fully programmable I/O pins
■ Serial Peripheral Interface
■ Flexible Clock controller for OSD, Data Slicer and Core clocks running from one single low frequency external crystal.
■ Enhanced Display Controller with 26 rows of 40/80 characters
– Serial and Parallel attributes
– 10x10 dot Matrix, 512 ROM characters, definable by user
– 4/3 and 16/9 supported in 50/60Hz and 100/120 Hz mode
– Rounding, fringe, double width, double height, scrolling, cursor, full background color, halfintensity color, translucency and half-tone modes
■ Teletext unit, including Data slicer, Acquisition Unit and 8 Kbytes TDSRAM for Data Storage
■ VPS and Wide Screen Signalling slicer
■ Integrated Sync Extractor and Sync Controller
■ 14-bit Voltage Synthesis for tuning reference voltage
■ Up to 8 External Interrupts plus 1 non-maskable interrupt
■ 8 x 8-bit programmable PWM outputs with 5V open-drain or push-pull capability
■ 16-bit Watchdog timer with 8-bit prescaler
■ One 16-bit standard timer with 8-bit prescaler
■ 4-channel Analog-to-Digital converter; 5-bit guaranteed
■ Rich instruction set and 14-Addressing modes Versatile Development Tools, including ssembler, Linker, C-compiler, Archiver, Source Level Debugger and Hardware Emulators with RealTime Operating System available from third parties