74HC154AP

 74HC154AP  -4-to-16 Line Decoder

The TC74HC154A is a high speed CMOS 4 to 16 LINE 

DECODER/DEMULTIPLEXER fabricated with silicon gate 

C2MOS technology. 

It achieves the high speed operation similar to equivalent 

LSTTL while maintaining the CMOS low power dissipation. 

A binary code applied to the four inputs A thru D is decoded 

within the device. Depending on the binary code, causes one of 

sixteen outputs to go low, when both the strobe inputs, 1G and 

2G , are held low. When either strobe input is held high, the 

decoding function is inhibited to keep all outputs high. The strobe 

function makes it easy to expand the decoding lines through 

cascading, and simplifies the design of address decoding circuits 

in a memory control system. 

All inputs are equipped with protection circuits against static discharge or transient excess voltage. 

Features 

• High speed: tpd = 15 ns (typ.) at VCC = 5 V 

• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C 

• High noise immunity: VNIH = VNIL = 28% VCC (min) 

• Output drive capability: 10 LSTTL loads 

• Symmetrical output impedance: |IOH| = IOL = 4 mA (min) 

• Balanced propagation delays: tpLH ∼− t

pHL

• Wide operating voltage range: VCC (opr) = 2~6 V 

• Pin and function compatible with 74LS154 

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