HD74HC155

Features:

·  High Speed Operation: t_pd (A or B to Y) = 15 ns typ (C_L = 50 pF)
·  High Output Current: Fanout of 10 LSTTL Loads
·  Wide Operating Voltage: V_CC = 2 to 6 V
·  Low Input Current: 1 µA max
·  Low Quiescent Supply Current: I_CC (static) = 4 µA max (T_a = 25°C)


Pinout




Description

   This HD74HC155  circuit features dual 1-line-to-4-line demultiplexer with individual strobes and common binary-address input. When both sections are enabled by the strobes, the common binary-address inputs sequentially select and route associated input data to the appropriate output of each section. The individual strobes permit activating or inhibiting each of the 4-bit sections as desired. Data applied to input 1C is inverted through its outputs. The HD74HC155 inverter following the 1C data input permits use as a 3-to-8-line decoder or 1-to-8-line demultiplexer without external gating.