SN74AC08NG4 Equivalent & Substitute Parts

Part Overview

The SN74AC08NG4 is a 4-channel AND gate logic IC manufactured by Texas Instruments, housed in a 14-pin DIP package. This component is classified as discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production continuity. The SN74AC08NG4 operates across a 2V to 6V supply voltage range and is suitable for digital logic applications requiring AND gate functionality with standard propagation delay characteristics.

Substiute Parts

SN74AC08NG4

Texas InstrumentsIn Stock: 1062SN74AC08NG4 Datasheet

Current PartRFQ

SN74AC08N

Texas InstrumentsIn Stock: 4475SN74AC08N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74AC08NG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: AND Gate with 4 circuits and 2 inputs per circuit
• Voltage Supply Range: 2V ~ 6V
• Current Specifications: Quiescent current 2 µA maximum; output drive 24mA high and low
• Input Logic Levels: Low 0.9V ~ 1.65V; High 2.1V ~ 3.85V
• Propagation Delay: 7.5ns maximum at 5V with 50pF load
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package: 14-DIP form factor

The SN74AC08N qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is packaging format (tube versus individual) and product status (active versus discontinued).

Parameter Comparison

Engineering Selection Recommendations

The SN74AC08N is the recommended substitute for the SN74AC08NG4. Both components are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The SN74AC08N maintains active product status, ensuring availability for procurement and production use. Both parts comply with ROHS3 standards and are unaffected by REACH regulations, meeting current environmental and regulatory requirements. The transition from the discontinued SN74AC08NG4 to the SN74AC08N involves no functional or performance trade-offs, as all critical parameters remain equivalent. Packaging format differs only in supplier delivery method (tube versus individual), which does not affect circuit performance or PCB integration.

Frequently Asked Questions (FAQ)

Q: Can the SN74AC08N directly replace the SN74AC08NG4 in existing designs?

A: Yes. The SN74AC08N is electrically and mechanically equivalent to the SN74AC08NG4. All logic specifications, voltage ratings, current characteristics, propagation delays, and operating temperature ranges are identical. The 14-DIP package footprint is the same, requiring no PCB modifications.

Q: What is the difference between SN74AC08NG4 and SN74AC08N?

A: The primary difference is product status and packaging format. The SN74AC08NG4 is discontinued at DiGi Electronics, while the SN74AC08N is active. The SN74AC08N is supplied in tube packaging, whereas the SN74AC08NG4 was supplied individually. Electrical performance is identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant and unaffected by REACH regulations. Moisture sensitivity level differs only in classification method (MSL 1 versus Not Applicable), but both are suitable for standard handling and storage conditions.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching logic type (AND gate), circuit count (4), input count (2), voltage supply range (2V ~ 6V), output current (24mA), propagation delay (7.5ns @ 5V, 50pF), operating temperature (-40°C ~ 85°C), and package type (14-DIP through-hole). All these parameters are identical between the main part and substitute.

Q: Is the 14-DIP package footprint identical?

A: Yes. Both the SN74AC08NG4 and SN74AC08N use the 14-DIP (0.300", 7.62mm) package with identical pin configuration and spacing. No PCB layout changes are required.