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CD4028 - BCD to Decimal Decoder

CD4028 - BCD to Decimal Decoder

CD4028 - BCD to Decimal Decoder

The CD4028BC is a BCD-to-decimal or binary-to-octal decoder consisting of 4 inputs, decoding logic gates, and 10 output buffers. A BCD code applied to the 4 inputs, A, B, C, and D, results in a high level at the selected 1-of-10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A, B, and C is decoded in octal at outputs 0–7. A high level signal at the D input inhibits octal decoding and causes outputs 0–7 to go LOW. All inputs are protected against static discharge damage by diode clamps to VDD and VSS.


  • BCD-to-decimal decoding or binary-to-octal decoding
  • High decoded output drive capability
  • "Positive logic" inputs and outputs……decoded outputs go high on selection
  • Medium-speed operation… tPHL, tPLH = 80 ns (typ.) @ VDD = 10 V
  • Standardized, symmetrical output characteristics
  • 100% tested for quiescent current at 20 V
  • Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
  • Noise margin (full package-temperature range) =
            1 V at VDD = 5 V
            2 V at VDD = 10 V 
         2.5 V at VDD = 15 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
  • Code conversion
  • Indicator-tube decoder
  • Address decoding-memory selection control

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  • Views: 1226
  • Product Code: CD4028 - BCD to Decimal Decoder
  • Availability: In Stock
  • Rs17.00

Tags: cd4028, - bcd to decimal, bcd, decimal, decoder, ic, semiconductor, demultiplexer

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