SN74HC08NG4 Equivalent & Substitute Parts

Part Overview

The SN74HC08NG4 is a 4-channel AND gate logic IC manufactured by Texas Instruments, housed in a 14-pin DIP package. This component is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production needs. The part operates across a 2V to 6V supply voltage range and is suitable for digital logic applications requiring AND gate functionality with standard TTL-compatible input/output levels.

Substiute Parts

SN74HC08NG4

Texas InstrumentsIn Stock: 974SN74HC08NG4 Datasheet

Current PartRFQ

SN74HC08N

Texas InstrumentsIn Stock: 1209SN74HC08N Datasheet

MFR RecommendedRFQ

TC74HC08APF

Toshiba Semiconductor and StorageIn Stock: 4318TC74HC08APF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74HC08NG4 is determined by strict equivalence across the following critical parameters:

• Logic function: 4-channel AND gate with 2 inputs per channel
• Supply voltage range: 2V ~ 6V
• Package type: 14-DIP through-hole configuration
• Operating temperature range: -40°C ~ 85°C
• Pin compatibility: Identical pinout and electrical interface
• Compliance: ROHS3 compliance and REACH unaffected status

The identified substitute parts (SN74HC08N and TC74HC08APF) maintain full functional and electrical equivalence within these parameters. Both alternatives are manufactured to the 74HC08 base product specification and are compatible with existing PCB designs without modification.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are actively available and maintain full compliance with ROHS3 and REACH requirements. The SN74HC08N, manufactured by Texas Instruments, provides direct equivalence to the original part with identical electrical specifications and is the primary recommended substitute for applications requiring continuity with the original design source.

The TC74HC08APF, manufactured by Toshiba Semiconductor and Storage, offers equivalent functionality with improved propagation delay performance (13ns versus 17ns at 6V, 50pF) and lower quiescent current consumption (1 µA versus 2 µA). This alternative is suitable for applications where reduced power consumption or faster switching characteristics provide design benefits.

Both parts are pin-compatible and require no PCB modifications for direct substitution in existing designs.

Frequently Asked Questions (FAQ)

Q: Can SN74HC08N be used as a direct replacement for SN74HC08NG4?

A: Yes. The SN74HC08N is functionally and electrically equivalent. Both parts share identical pinout, supply voltage range, input/output logic levels, and operating temperature specifications. The primary difference is product status: SN74HC08N is actively manufactured while SN74HC08NG4 is discontinued.

Q: What are the differences between TC74HC08APF and the Texas Instruments alternatives?

A: The TC74HC08APF maintains full functional equivalence with identical logic operation, pin configuration, and package type. Measurable differences include lower quiescent current (1 µA versus 2 µA) and faster propagation delay (13ns versus 17ns at 6V, 50pF). These differences do not affect compatibility in standard logic applications.

Q: Are all three parts compatible with the same PCB design?

A: Yes. All three parts use the 14-DIP through-hole package with identical pinout and electrical interface specifications. No PCB modifications are required for substitution.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. Both SN74HC08N and TC74HC08APF are ROHS3 compliant and REACH unaffected, matching the compliance status of the original SN74HC08NG4.

Q: Which substitute should be selected for new designs?

A: For new designs, either SN74HC08N or TC74HC08APF is appropriate. SN74HC08N maintains design continuity with the original manufacturer. TC74HC08APF offers performance advantages in power consumption and switching speed. Selection depends on design priorities and supplier availability.