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4-Line to 16-Line Decoder/Demultiplexer IC - 74HC154

4-Line to 16-Line Decoder/Demultiplexer IC - 74HC154-Robocraze

4-Line to 16-Line Decoder/Demultiplexer IC - 74HC154

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  • Decodes 4 binary-coded inputs into one of 16 mutually exclusive outputs 
  • Performs the demultiplexing function by distributing data from one input line to any one of 16 outputs 
  • Input clamping diodes simplify system design 
  • High fan-out, low-impedance, totem-pole outputs 
  • Typical propagation delay 3 levels of logic 23 ns Strobe 19 ns 
  • Typical power dissipation 45 mW

4-Line to 16-Line Decoder/Demultiplexer IC - 74HC154

This is the 74HC Series 74HC154 IC, Each of these 4-line-to-16-line decoders IC utilizes TTL circuitry to decode four binary-coded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs, G1 and G2, are LOW. The demultiplexing function is performed by using the 4 input lines to address the output line, passing data from one of the strobe inputs with the other strobe input LOW.

When either strobe input is HIGH, all outputs are HIGH. These demultiplexers are ideally suited for implementing high-performance memory decoders. All inputs are buffered and input clamping diodes are provided to minimize transmission-line effects and thereby simplify system design. 


Pinout Of 74HC154 IC

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Supply Voltage (VCC) 7 V
Input Voltage (VI) 7 V
Operating free-air temperature range 0°C to +70°C 
Storage temperature range –65°C to +150°C


1. What is 74HC154?

  • The 74HC154 is a decoder/demultiplexer with a 4-to-16 line range. It converts four binary weighted address inputs (A0–A3) into sixteen mutually exclusive outputs (Y0 to Y15). The device has two input enable inputs (E0 and E1). A HIGH on each input causes the outputs to be HIGH.

2.What is meant by 4-to-16 decoder?

  • A 4-to-16 decoder has four inputs and sixteen outputs. As with all of the decoders covered previously, only one output will be low at any given time while all other outputs are high (using maxterms).