COP472-3 COP472-3 Liquid Crystal Display Controller Literature Number: SNOSBQ3 COP472-3 Liquid Crystal Display Controller
General Description Features The COP472–3 Liquid Crystal Display (LCD) Controller is a
peripheral member of the COPSTM family, fabricated using
CMOS technology. The COP472-3 drives a multiplexed liquid crystal display directly. Data is loaded serially and is held
in internal latches. The COP472-3 contains an on-chip oscillator and generates all the multi-level waveforms for backplanes and segment outputs on a triplex display. One
COP472-3 can drive 36 segments multiplexed as 3 x 12
(4(/2 digit display). Two COP472-3 devices can be used together to drive 72 segments (3 x 24) which could be an 8(/2
digit display. Y
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Y Direct interface to TRIPLEX LCD
Low power dissipation (100 mW typ.)
Low cost
Compatible with all COPS processors
Needs no refresh from processor
On-chip oscillator and latches
Expandable to longer displays …
