CL-GD5420 Datasheet | Cirrus Logic

FEATURES s 32-bit GUI acceleration (CL-GD5426/’28/’29) - Bit BLT (Bit block transfer) engine - Color expansion for 8- or 16-bit pixels s 16/32-bit CPU interface - VESA® VL-Bus™ (up to 50 MHz) - ISA bus (12.5 MHz) - Zero-wait-state write cycles s Resolutions up to 1280 × 1024 - 1024 × 768 × 256 colors, non-interlaced - 800 × 600 × 64K colors, non-interlaced - 640 × 480 × 16M colors, non-interlaced - 1280 × 1024 × 256 colors, interlaced - 1024 × 768 × 64K colors, interlaced s Programmable dual-clock synthesizer - Pixel clock programmable up to 86 MHz - Memory clock programmable up to 60 MHz s Integrated 24-bit true-color RAMDAC s ‘Green PC’ power-saving features - VESA® DPMS (Display Power Management Signal) - Internal DAC with programmable power-down mode - Static monitor sync signals s Support for multimedia applications - 3-3-2 RGB DAC modes for video playback (CL-GD5425/’28/’29) - Support of VAFC (VESA® advanced feature connector) baseline for video overlay (CL-GD5425/’29) s 100% hardware- and BIOS-patible with IBM® VGA display standards (cont.) True Color VGA Family CL-GD5429 - Memory-Mapped I/O VGA GUI Accelerator with Local Bus CL-GD5428 - Enhanced VGA GUI Accelerator with Local Bus CL-GD5426 - VGA GUI Accelerator with Local Bus CL-GD5425 - True Color VGA Controller with TV Output CL-GD5424 - True Color VGA with Local Bus CL-GD5422 - True Color VGA CL-GD5420 - Super VGA OVERVIEW The CL-GD542X family of true-color VGA controllers offers an extensive range of industry-leading features and functionality for IBM®-patible personal puters. Ideally suited to highly integrated systems, CL-GD542X devices require no external support other than display memory and a crystal frequency reference. CL-GD542X devices are 100% hardware- and BIOS-patible with IBM VGA standards, and connect directly to an ISA or local bus, allowing a minimum adapter solution. Operating at dot clock rates programmable up to 86 MHz, CL-GD542X devices support standard and VESA® highresolution and...