CD4555 Dual Binary 1 of 4 Decoder – Datasheet

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CD4555 is a part of the CD4000 IC series. On the CD4555 the outputs are high on select. When the Enable input is high, the outputs of the CD4555 remain low regardless of the state of the select inputs A and B. The CD4555BMS and CD4556BMS are similar to types MC14555 and MC14556, respectively. The CD4555BMS and CD4556BMS are supplied in 16-lead hermetic dual-in-line ceramic packages.. The IC CD4555 is smaller in size and it has a much faster speed which makes it reliable in every kind of device.

What is Decoder?

A decoder/demultiplexer is a combinational logic circuit & an integral part of today’s consumer scale electronics. It is designed to switch one common input line to one of several separate output lines. So, A demultiplexer converts a serial data signal at the input to parallel data at its output lines.

CD4555 Key Features

  • High Voltage Type (20V Rating)
  • CD4555BMS: Outputs High on Select
  • CD4556BMS: Outputs Low on Select
  • Expandable with Multiple Packages
  • 100% Tested for Quiescent Current at 20V
  • Standardized, Symmetrical Output Characteristics
  • Maximum Input Current of 1µA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
  • Noise Margin (Over Full Package/Temperature Range)
    • 1V at VDD = 5V
    • 2V at VDD = 10V
    • 2.5V at VDD = 15V
  • 5V, 10V and 15V Parametric Ratings

CD4555 Pinout

Pin NoPin NameDescription
1E’invert enable pin of decoder A
2A1input pin A of decoder A
3B1input pin B of decoder A
4Q0Aoutput pin 0 of decoder A
5Q1Aoutput pin 1 of decoder A
6Q2Aoutput pin 2 of decoder A
7Q3Aoutput pin 3 of decoder A
8VSSsource supply
9Q3Boutput pin 3 of decoder B
10Q2Boutput pin 2 of decoder B
11Q1Boutput pin 1 of decoder B
12Q0Boutput pin 0 of decoder B
13B2input pin of decoder B
14A2input pin of decoder B
15E’invert enable pin B
16VDDdrain supply

Application

  • Decoding
  • Code Conversion
  • Demultiplexing (Using Enable Input as a Data Input
  • Memory Chip-Enable Selection
  • Function Selection

CD4555 Datasheet

You can download the datasheet for CD4555 Dual Binary 1 of 4 Decoder from the link given below:

See Also: 74LS122 Retriggerable Monostable Multivibrator IC | 74LS109 Dual JK Positive Edge-Triggered Flip-Flop IC | 74LS92 4-Bit Divide By Twelve Binary Counter IC