SN74LS145DR vs SN74LS221D

This in-depth comparison of the SN74LS145DR and SN74LS221D 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

SN74LS145DR

Texas Instruments

Lifecycle
Active
Stock
5652 PCS
Package
SOIC-16
Series
Logic - Signal Switches, Multiplexers, Decoders
+BOM RFQ
Part B

SN74LS221D

Texas Instruments

Lifecycle
Active
Stock
2147 PCS
Package
SOIC-16
Series
Logic - Multivibrators
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification SN74LS145DR SN74LS221D
Supplier - Texas Instruments
Series 74LS 74LS
Part Status Active Active
Logic Type - Monostable
Independent Circuits 1 2
Schmitt Trigger Input - No
Propagation Delay - 45 ns
Current - Output High Low -, 80mA 400µA, 8mA
Voltage - Supply 4.75V ~ 5.25V 4.75 V ~ 5.25 V
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C
Mounting Type Surface Mount Surface Mount
Type Decoder -
Circuit 1 x 4:10 -
Voltage Supply Source Single Supply -
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