SN74LS136D XOR Logic IC Equivalent & Substitute Parts

Part Overview

The SN74LS136D is a 4-channel XOR (Exclusive OR) logic integrated circuit manufactured by Texas Instruments in 14-SOIC surface mount packaging. This component is classified as discontinued at DiGi Electronics, making identification of compatible substitute parts essential for ongoing design support and procurement.

The SN74LS136D serves applications requiring exclusive OR logic operations with open collector output configuration. Discontinuation status necessitates evaluation of available equivalent components to maintain design continuity and supply chain reliability.

Substiute Parts

SN74LS136D

Texas InstrumentsIn Stock: 3397SN74LS136D Datasheet

Current PartRFQ

SN74LS136DR

Texas InstrumentsIn Stock: 2092SN74LS136DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS136D is determined by strict equivalence across the following critical parameters:

• Logic Type: XOR (Exclusive OR) with 4 channels, 2 inputs per channel
• Output Configuration: Open Collector topology
• Electrical Specifications: Supply voltage 4.75V ~ 5.25V, input logic levels 0.8V (low) and 2V (high), output current 8mA maximum
• Timing Performance: Maximum propagation delay 30ns at 5V with 15pF load
• Package: 14-SOIC surface mount form factor
• Compliance: ROHS3 compliant, MSL Level 1

The SN74LS136DR qualifies as a direct substitute based on identical electrical characteristics, logic configuration, and package specifications. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS136DR is a direct functional equivalent to the SN74LS136D. Both components share identical electrical specifications, logic configuration, and package geometry. The SN74LS136DR maintains active product status with Texas Instruments, ensuring continued availability and supply chain support.

Selection of the SN74LS136DR is appropriate for applications currently specified for the SN74LS136D. Both components meet ROHS3 compliance requirements and carry MSL Level 1 moisture sensitivity classification. Packaging format differs between tube (SN74LS136D) and cut tape/Digi-Reel (SN74LS136DR), which may affect procurement quantities and handling procedures but does not impact electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS136DR replace the SN74LS136D in existing designs?

A: Yes. The SN74LS136DR is electrically and mechanically equivalent. All electrical parameters, logic configuration, and package specifications are identical. The components are pin-compatible and functionally interchangeable.

Q: What is the difference between tube and cut tape packaging?

A: Tube packaging (SN74LS136D) is typically used for lower-volume orders and manual assembly. Cut tape and Digi-Reel packaging (SN74LS136DR) is designed for automated pick-and-place assembly and higher-volume production. The components themselves are identical; packaging format affects handling and assembly methodology only.

Q: Are both parts RoHS compliant?

A: Yes. Both the SN74LS136D and SN74LS136DR are ROHS3 compliant and carry MSL Level 1 moisture sensitivity classification.

Q: Why is the SN74LS136D discontinued?

A: Product discontinuation is determined by the manufacturer and distributor. The SN74LS136DR remains in active production, providing a direct path for continued component sourcing.

Q: What are the critical parameters for XOR logic substitution?

A: Substitution requires matching logic type (XOR with 4 channels, 2 inputs), output configuration (open collector), supply voltage range (4.75V ~ 5.25V), input logic levels (0.8V low, 2V high), propagation delay (30ns maximum), and package form factor (14-SOIC).