SN74ALS08NG4 Equivalent & Substitute Parts

Part Overview

The SN74ALS08NG4 is a 4-channel AND gate logic IC manufactured by Texas Instruments in a 14-DIP through-hole package. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement. The SN74ALS08 series provides standard AND gate functionality suitable for digital logic applications requiring low-power Schottky performance.

Substiute Parts

SN74ALS08NG4

Texas InstrumentsIn Stock: 825SN74ALS08NG4 Datasheet

Current PartRFQ

SN74ALS08N

Texas InstrumentsIn Stock: 2090SN74ALS08N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ALS08NG4 is determined by the following critical parameters:

• Logic function: AND gate with 4 channels, 2 inputs per channel
• Electrical specifications: 4.5V ~ 5.5V supply voltage, 14ns propagation delay at 5V with 50pF load
• Input/output thresholds: 0.8V low level, 2V high level, 400µA high output, 8mA low output
• Package format: 14-DIP through-hole configuration
• Environmental compliance: ROHS3 compliant, operating range 0°C ~ 70°C

The SN74ALS08N 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 SN74ALS08N is the recommended substitute for the discontinued SN74ALS08NG4. Both parts maintain identical electrical and functional specifications across all critical parameters. The SN74ALS08N offers the advantage of active product status, ensuring continued availability and supply chain support. Both parts meet ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current applications. The through-hole 14-DIP package format is consistent between both parts, allowing direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS08N directly replace the SN74ALS08NG4 in existing designs?

A: Yes. Both parts share identical logic function, electrical specifications, input/output thresholds, propagation delay, supply voltage range, and 14-DIP through-hole package format. Direct substitution is supported without circuit modifications.

Q: What is the difference between SN74ALS08NG4 and SN74ALS08N?

A: The primary difference is product status. The SN74ALS08NG4 is discontinued at DiGi Electronics, while the SN74ALS08N maintains active status. Packaging format differs (NG4 vs. N designation), but electrical and functional performance are identical.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent between the two parts.

Q: Does the 14-DIP package remain the same for both parts?

A: Yes. Both the SN74ALS08NG4 and SN74ALS08N use the 14-DIP (0.300", 7.62mm) through-hole package, ensuring mechanical and electrical compatibility on PCBs designed for either part.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching logic type (AND gate, 4 channels, 2 inputs), supply voltage (4.5V ~ 5.5V), propagation delay (14ns @ 5V, 50pF), input thresholds (0.8V low, 2V high), and output current specifications (400µA high, 8mA low).