SN74HCS238-Q1 Automotive Qualified 3- to 8-Line Decoder/Demultiplexer with
Schmitt-Trigger Inputs
1 Features
• AEC-Q100 Qualified for automotive applications:
– Device temperature grade 1:
–40°C to +125°C, T
A
– Device HBM ESD Classification Level 2
– Device CDM ESD Classifcation Level C6
• Wide operating voltage range: 2 V to 6 V
• Schmitt-trigger inputs allow for slow or noisy input
signals
• Low power consumption
– Typical I
CC
of 100 nA
– Typical input leakage current of ±100 nA
• ±7.8-mA output drive at 6 V
2 Applications
• Memory device selection with shared data bus
• Reduce required number of outputs for chip select
applications
• Route data
3 Description
The SN74HCS238-Q1 is a three to eight decoder with
one standard output strobe (G
2
) 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 low state. When the outputs are not disabled
by the strobe inputs, only the selected output is high
while all others are low.
Device Information
PART NUMBER PACKAGE
(1)
BODY SIZE (NOM)
SN74HCS238PW-Q1 TSSOP (16) 5.00 mm × 4.40 mm
SN74HCS238D-Q1 SOIC (16) 9.90 mm × 3.90 mm
SN74HCS238BQB-Q1 WQFN (16) 3.50 mm × 2.50 mm
SN74HCS238DYY-Q1 SOT-23-THN (16) 4.20 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Input Voltage
Supply Current
Schmitt-trigger
CMOS Input
Response
Waveforms
Standard
CMOS Input
Response
Waveforms
Input Voltage
Supply Current
Input
Voltage
Input Voltage Time
Current
Output
Voltage
Current
Output
Voltage
Input
Voltage
Time
Current
Output
VoltageCurrent
Output
Voltage
Input
Voltage
Input Voltage
Waveforms
Low Power Noise Rejection
Supports Slow Inputs
Time
Time
Time
Time
Benefits of Schmitt-trigger inputs
SN74HCS238-Q1
SCLS813C – SEPTEMBER 2020 – REVISED JUNE 2021
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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