CD4543 BCD to 7-Segment Decoder

SKU: VC1118

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The CD4543BE is a BCD-to-seven Segment Latch/Decoder/Driver, designed primarily for liquid-crystal display (LCD) applications. The CD4543 IC has a wide range of working voltage, a wide range of working conditions, and directly interfaces with CMOS, NMOS, and TTL. 

Technical Specification:

  • Number of Input Lines: 4 Input
  • Number of Output Lines: 7 Output
  • Propagation Delay Time: 400 ns
  • Operating Supply Voltage: 3 ~ 18V
  • High Level Output Current: -1.5 mA
  • Low Level Output Current: 1.5 mA
  • Maximum Clock Frequency: 8 MHz
  • Minimum Operating Temperature: -55°C
  • Maximum Operating Temperature: +125°C


  • BCD-to-Seven Segment Latch/Decoder/Driver for LCD Applications
  • Display Blanking of all Illegal Input Combinations
  • Latch Storage of Code
  • Direct Replacement for CD4056
  • Low Power CMOS


  • Instrument Display Driver
  • Dashboard Display Driver
  • Computer/Calculator Display Driver
  • Timing Device Driver (Clock, Watches, Timers)

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