SN74LS138N vs SN74LS51N

This in-depth comparison of the SN74LS138N and SN74LS51N 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

SN74LS138N

Texas Instruments

Lifecycle
Active
Stock
5031 PCS
Series
Logic - Signal Switches, Multiplexers, Decoders
+BOM RFQ
Part B

SN74LS51N

Texas Instruments

Lifecycle
Active
Stock
7048 PCS
Package
DIP-14
Series
Logic - Gates and Inverters - Multi-Function, Configurable
+BOM RFQ

Need help validating a replacement?

Send your BOM and application constraints for technical and sourcing review.

RFQ Contact technical support

Full specification comparison

Use manufacturer datasheets as the final authority.

Specification SN74LS138N SN74LS51N
Supplier - Texas Instruments
Series 74LS 74LS
Part Status Active Active
Logic Type - AND/OR/INVERT Gate
Number of Circuits - 2
Number of Inputs - 10 Input (3, 3, 2, 2)
Schmitt Trigger Input - No
Output Type - Single-Ended
Current - Output High Low - 400µA, 8mA
Voltage - Supply 4.75V ~ 5.25V 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C
Mounting Type Through Hole Through Hole
Base Product Number 74LS138 -
Type Decoder/Demultiplexer -
Circuit 1 x 3:8 -
Independent Circuits 1 -
Current - Output High, Low 400µA, 8mA -
Voltage Supply Source Single Supply -
Packaging Tube -
Compare RFQ