CD4511 7-Segment Driver IC

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Pin configuration

Pin no.Pin nameDescription
1,2,6,7B,C,D,ABCD input of the IC
3Display test/Lamp testTo test the display LEDs
4Blank inputTo turn-off the LEDs of the display
5StoreStore or strobe a BCD code
9,10,11,12,13,14,15e,d,c,b,a,g,f7-segment outputs
16VccPositive supply input


  • Lamping test and blanking capability.
  • Low logic circuit power dissipation.
  • Input latches for BCD code storage.
  • Balanced propagation delays and transition time.
  • High output sourcing capability.
  • Lamp intensity modulation capability.
  • Rigid structure.

Technical Specification

  • Supply voltage ranges from 3v to 18v
  • Set-up-time is 150, 70, and 40ns at 5v, 10v, and 15v respectively
  • Strobe pulse width is 400, 160, and 100ns at 5v, 10v, and 15v respectively
  • Hold time is zero
  • 100% tested for quiescent current at 20v
  • Having high input current of 1uA (max.) at 18v
  • Maximum output current sourcing of 25mA
  • Operating temperature ranges from -40 °C to 85 °C
  • Storage temperature ranges from -65 °C to 150 °C

Farees Ahmed

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