MC14543BCL ,BCD-to-Seven Segment Latch/Decoder/Driver for Liquid CrystalsMAXIMUM RATINGS* (Voltages referenced to V )SS1 0 0 1 0 0 0 1 1 1 1 1 1 1 8 Rating Symbol Value Uni ..
MC14543BCL ,BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals**SEMICONDUCTOR TECHNICAL DATA!*#** !L SUFFIX**!**#** CERAMICCASE 620"** **$ !** The MC14543B BCD–t ..
MC14543BCL ,BCD-to-Seven Segment Latch/Decoder/Driver for Liquid CrystalsMaximum Ratings are those values beyond which damage to the device may occur.†Temperature Derating: ..
MC14543BCP ,BCD-to-Seven Segment Latch/Decoder/Driver for Liquid CrystalsMC14543BBCD-to-Seven SegmentLatch/Decoder/Driver forLiquid CrystalsThe MC14543B BCD–to–seven segmen ..
MC14543BDR2 ,BCD-to-7 Segment Latch/Decoder/Driver for Liquid Crystalshttp://onsemi.com3MC14543B(8.)ÎÎÎÎÎ SWITCHING CHARACTERISTICS (C = 50 pF, T = 25C)L AÎÎÎÎÎ Charac ..
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MC14543BCL
BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals
!# !
!# -$ !
The MC14543B BCD–to–seven segment latch/decoder/driver is designed
for use with liquid crystal readouts, and is constructed with complementary
MOS (CMOS) enhancement mode devices. The circuit provides the
functions of a 4–bit storage latch and an 8421 BCD–to–seven segment
decoder and driver. The device has the capability to invert the logic levels of
the output combination. The phase (Ph), blanking (BI), and latch disable (LD)
inputs are used to reverse the truth table phase, blank the display, and store
a BCD code, respectively. For liquid crystal (LC) readouts, a square wave is
applied to the Ph input of the circuit and the electrically common backplane
of the display. The outputs of the circuit are connected directly to the
segments of the LC readout. For other types of readouts, such as
light–emitting diode (LED), incandescent, gas discharge, and fluorescent
readouts, connection diagrams are given on this data sheet.
Applications include instrument (e.g., counter, DVM etc.) display driver,
computer/calculator display driver, cockpit display driver, and various clock,
watch, and timer uses. Latch Storage of Code Blanking Input Readout Blanking on All Illegal Input Combinations Direct LED (Common Anode or Cathode) Driving Capability Supply Voltage Range = 3.0 V to 18 V Capable of Driving Two Low–power TTL Loads, One Low–power
Schottky TTL Load or Two HTL Loads Over the Rated Temperature
Range Pin–for–Pin Replacement for CD4056A (with Pin 7 Tied to VSS). Chip Complexity: 207 FETs or 52 Equivalent Gates
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
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ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ POHmax = IOH (VOH – VDD) and POLmax = IOL (VOL – VSS) Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125C
Ceramic “L” Packages: – 12 mW/ C From 100 C To 125C
TRUTH TABLEX = Don’t care
† = Above Combinations
* = For liquid crystal readouts, apply a square wave to Ph
For common cathode LED readouts, select Ph = 0
For common anode LED readouts, select Ph = 1
** = Depends upon the BCD code previously applied when
LD = 1
SEMICONDUCTOR TECHNICAL DATA
