CRT8021 - 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's CRT 5027/37VTAC® or CRT 9007 VPAC. The CRT 8021 and a cha.

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-thru o ON CHIP BLINKING CURSOR o ON CHIP DATA BUFFER o ON CHIP ATTRIBUTE BUFFER 0+5 VOLT OPERATION o TTL COMPATIBLE o MOS N-CHANNEL SILICON-GATE COPLAMOS® PROCESS PIN CONFIGURATION VIDEO 1 LD/SH 2 VDO 3 A0 4 A1 5 A2 6 A3 7 A4 8 AS 9 A610 A7 11 Vee 12 R2 13 R314 28 RETBL 27 CURSOR 26 Msa 25 MSI 24 .