SAA5355

INTEGRATED CIRCUITS DATA SHEET SAA5355 Single-chip colour CRT controller (FTFROM) Product specification File under Integrated Circuits, IC02 March 1986 Philips Semiconductors Product specification Single-chip colour CRT controller (FTFROM) GENERAL DESCRIPTION SAA5355 The SAA5355 FTFROM (Five-Two-Five-ROM) is a single-chip VLSI NMOS crt controller capable of handling the display functions required for a 525-line, level-3 videotex decoder. Only minimal hardware is required to produce a videotex terminal using FTFROM  the simplest configuration needs just a microcontroller and 4 Kbytes of display memory. Features Minimal additional hardware required Screen formats of 40/80 character by 1-to-25 row display 512 alphanumeric or graphical characters on-chip or extendable off-chip Serial attribute storage (STACK) and parallel attribute storage Dynamically redefinable character (DRCS) capability over full field Interfaces with 8/16-bit microprocessors with optional direct memory access On-chip scroll map minimizes data to be transferred when scrolling 32 on-screen colours redefinable from a palette of 4096 Three on-chip digital-to-analogue converters which compensate for crt non-linearity Memory interface capable of supporting multi-page terminals. FTFROM can access up to 128 Kbytes of display memory Programmable cursor Programmable local status row Three synchronization modes: stand-alone simple slave phase-locked slave built-in oscillator operating wi...