SN74LS273N vs SN74LS245N

This in-depth comparison of the SN74LS273N and SN74LS245N 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

SN74LS273N

Texas Instruments

Lifecycle
Active
Stock
2694 PCS
Package
PDIP-20
Series
Logic - Flip Flops
+BOM RFQ
Part B

SN74LS245N

Texas Instruments

Lifecycle
Active
Stock
1865 PCS
Package
PDIP-20
Series
Logic - Buffers, Drivers, Receivers, Transceivers
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification SN74LS273N SN74LS245N
Series 74LS 74LS
Part Status Active Active
Function Master Reset -
Type D-Type -
Output Type Non-Inverted 3-State
Number of Elements 1 1
Number of Bits per Element 8 8
Clock Frequency 40 MHz -
Max Propagation Delay @ V Max CL 27ns @ 5V, 15pF -
Trigger Type Positive Edge -
Current - Output High Low 400µA, 8mA 15mA, 24mA
Voltage - Supply 4.75V ~ 5.25V 4.75V ~ 5.25V
Current - Quiescent (Iq) 27 mA -
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Mounting Type Through Hole Through Hole
Logic Type - Transceiver, Non-Inverting
Compare RFQ