CD74HCT4543 High Speed CMOS Logic BCD-to-7 Segment Latch/Decoder/Driver for LCDs | TI.com

CD74HCT4543 (ACTIVE) High Speed CMOS Logic BCD-to-7 Segment Latch/Decoder/Driver for LCDs

High Speed CMOS Logic BCD-to-7 Segment Latch/Decoder/Driver for LCDs - CD74HCT4543
Datasheet
 

Description

The CD74HCT4543 high-speed silicon-gate is a BCD-to-7 segment latch/decoder/driver designed primarily for directly driving liquid-crystal displays. While the latch enable (LD) is low, the latches are enabled to store the BCD inputs. When the latch enable is high, the latches are disabled, making the outputs transparent to the BCD inputs. The device has 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.

Features

  • 4.5-V to 5.5-V VCC Operation
  • Input Latches for BCD Code Storage
  • Blanking Capability
  • Phase Input for Complementing Outputs
  • Fanout (Over Temperature Range)
    • Standard Outputs - 10 LSTTL Loads
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • Direct LSTTL input logic compatibility, VIL=0.8 V Maximum, VIH=2 V Minimum
  • CMOS Input Compatibility, II 1µA @ VOL, VOH

Parametrics

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Part number Order Function Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) Configuration Type IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Bits (#) Digital input leakage (Max) (uA) ESD CDM (kV) ESD HBM (kV)
CD74HCT4543 Order now Decoder
Demultiplexer    
HCT     4.5     5.5     1     5     25     0.08     80     4:7     Standard     4     -4     Catalog     -55 to 125     PDIP | 16     16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)     7     5     0.75     2