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CRT9021B Datasheet Crt Video Attributes Controller

Manufacturer: SMSC (now Microchip Technology)

Overview: STANDARD MICROSYSTEMS CORPORATIO~N~_ _• CRT9021B J,1PC FAMILY CRT Video Attributes Controller.

General Description

The SMC CRT 9021 Video Attributes Controller line, reVerse video character block, and blinking (VAC) is an n-channel COPLAMOS MOS/LSI device reverse video character block.

When used in the serial containing Graphics logic, attributes logic, data and scan line input mode, the cursor mode may be selected attributes latches, cursor control, and a high speed via two input pins.

When used in the parallel scan line video shift register.

Key Features

  • o On chip video shift register (28.5 MHz max. ) o On chip attributes logic Reverse video Character blank Character blink Underline Full/half intensity o Four modes of operation Wide graphics Thin graphics Character mode without underline Character mode with underline o On Chip logic for double height/double width characters o Accepts scan line information in parallel or serial format o Four cursor modes dynamically selectable via 2 input pins Underline Blinking underline Reverse video Blinking re.

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CRT9021B Distributor