SN74LS14DRE4 Equivalent & Substitute Parts

Part Overview

The SN74LS14DRE4 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in a 14-SOIC surface mount package. This device performs logic inversion with hysteresis characteristics, making it suitable for signal conditioning and noise immunity applications in digital circuits.

The SN74LS14DRE4 is currently discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

SN74LS14DRE4

Texas InstrumentsIn Stock: 931SN74LS14DRE4 Datasheet

Current PartRFQ

SN74LS14DR

Texas InstrumentsIn Stock: 3007SN74LS14DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS14DRE4 is determined by the following critical parameters:

• Logic Type: Inverter with Schmitt trigger functionality
• Number of Circuits: 6 channels
• Number of Inputs: 1 input per channel
• Supply Voltage Range: 4.75V ~ 5.25V
• Output Current Specifications: 400µA (high), 8mA (low)
• Input Logic Levels: Low 0.5V, High 1.9V
• Propagation Delay: 22ns @ 5V, 15pF
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 14-SOIC surface mount
• Compliance: ROHS3, REACH Unaffected

Parts meeting all these electrical and mechanical parameters are functionally equivalent and may be substituted without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS14DR is the direct substitute for the discontinued SN74LS14DRE4. Both parts are manufactured by Texas Instruments and share identical electrical specifications, logic functionality, and package configuration. The SN74LS14DR maintains active product status with current availability, making it the appropriate selection for new designs and component replenishment.

Both parts meet ROHS3 compliance requirements and carry REACH Unaffected status, ensuring regulatory alignment for industrial and commercial applications. The identical propagation delay, output current ratings, and input logic thresholds confirm functional interchangeability without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS14DR directly replace the SN74LS14DRE4 in existing designs?

A: Yes. The SN74LS14DR is electrically and mechanically identical to the SN74LS14DRE4. All electrical parameters, logic specifications, and package dimensions match exactly. Direct substitution requires no circuit changes or board layout modifications.

Q: What is the difference between SN74LS14DRE4 and SN74LS14DR?

A: The primary difference is product status. The SN74LS14DRE4 is discontinued, while the SN74LS14DR is active. The suffix designations reflect different packaging and distribution formats, but the core die and electrical performance are identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ROHS3 compliance and REACH Unaffected status. Moisture sensitivity level (MSL 1) is the same for both, indicating unlimited shelf life under standard storage conditions.

Q: What packaging formats are available for the SN74LS14DR?

A: The SN74LS14DR is available in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for both prototype and production volume requirements.

Q: Is the 14-SOIC package footprint identical between both parts?

A: Yes. Both parts use the 14-SOIC package with 0.154" width and 3.90mm body width. PCB footprints and land patterns are identical, ensuring direct compatibility without layout redesign.