1 Features

? AEC-Q100 qualified for automotive applications:

– Device temperature grade 1: -40°C to +125°C

– Device HBM ESD classification level 2

– Device CDM ESD classification level C4B

? Available in wettable flank QFN package

? Operating voltage range of 4.5V to 5.5V

? TTL-compatible inputs

? Continuous ±24mA output drive at 5V

? Supports up to ±75mA output drive at 5V

in short bursts

? Drives 50Ω transmission lines

? Fast operation with delay of 10.2ns (VCC = 5V, CL

= 50pF)

2 Applications

? Memory device selection with shared data bus

? Reduce required number of outputs for chip select

applications

? Route data

3 Description

The SN74ACT138-Q1 contains a three to eight

decoder with one standard output strobe (G2) and two

active low output strobes (G 1 and G 0). When the

outputs are gated by any of the strobe inputs, they are

all forced into the high state. When the outputs are

not disabled by the strobe inputs, only the selected

output is low while all others are high. TTL-compatible

CMOS inputs provide the capability to up-translate

input signals from as low as 2V up to 5V outputs.