CRT8021 Datasheet - SMSC

CRT8021 CRT Video Attributes Controller

The SMC CRT 8021 Video Attributes Controller (VAC) is an n-channel COPLAMOS® MOS/LSI device. It contains wide and thin graphics logic, attributes logic, a data latch, field and character attribute latch, a blinking cursor, and a high speed video shift register. The CRT 8021 VAC isa companion to SMC.

CRT8021 Features

* o ON CHIP VIDEO SHIFT REGISTER Maximum shift register frequency-20MHz Maximum character clock rate-2.5MHz o ON CHIP HORIZONTAL AND VERTICAL RETRACE VIDEO BLANKING o ON CHIP GRAPHICS GENERATION o ON CHIP ATTRIBUTE LOGIC-CHARACTER, FIELD Reverse video Character blank Character blink Underline Strike-t

CRT8021-SMSC.pdf