SN74HC138DR vs SN74HC74DR

This in-depth comparison of the SN74HC138DR and SN74HC74DR provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

SN74HC138DR

Texas Instruments

Lifecycle
Active
Stock
3297 PCS
Package
SOIC-16
Series
Logic - Signal Switches, Multiplexers, Decoders
+BOM RFQ
Part B

SN74HC74DR

Texas Instruments

Lifecycle
Active
Stock
1860 PCS
Package
SOIC-14
Series
Logic - Flip Flops
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification SN74HC138DR SN74HC74DR
Series 74HC 74HC
Part Status Active Active
Type Decoder/Demultiplexer D-Type
Circuit 1 x 3:8 -
Independent Circuits 1 -
Current - Output High Low 5.2mA, 5.2mA 5.2mA, 5.2mA
Voltage Supply Source Single Supply -
Voltage - Supply 2V ~ 6V 2V ~ 6V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Function - Set(Preset) and Reset
Output Type - Complementary
Number of Elements - 2
Number of Bits per Element - 1
Clock Frequency - 60 MHz
Max Propagation Delay @ V Max CL - 15ns @ 6V, 50pF
Trigger Type - Positive Edge
Current - Quiescent (Iq) - 4 µA
Input Capacitance - 3 pF
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