[ /Title
(CD74
HC454
3)
/Subject
(HighSpeed
CMOS
Logic
BCDto-7 CD74HC4543
Data sheet acquired from Harris Semiconductor
SCHS217B High-Speed CMOS Logic BCD to 7-Segment
Latch/Decoder/Driver for LCDs February 1998 -Revised July 2003 Features Description Input Latches for BCD Code Storage The CD74HC4543 high-speed silicon-gate device is a BCD
to 7-segment latch/decoder/driver designed primarily for
directly driving liquid-crystal displays. It has an active-high
disable input (LD), an active-high blanking input (BI) and a
phase input (PH) to which a square wave is applied for
liquid-crystal applications. This square wave also is applied
to the backplane of the liquid-crystal display. Blanking Capability Phase Input for Complementing Outputs Fanout (Over Temperature Range)
-Standard Outputs . 10 LSTTL Loads
-Bus Driver Outputs . 15 LSTTL Loads This device also can be used, in conjunction with current
amplifying devices, for driving LEDs, incandescent,
fluorescent, and gas-discharge displays. For these
applications the phase input provides a means to obtain …
