SN74AS808BNG4 Equivalent & Substitute Parts

Part Overview

The SN74AS808BNG4 is a 6-channel AND gate logic IC manufactured by Texas Instruments, housed in a 20-pin DIP package. This component is classified as discontinued at DiGi Electronics, making identification of suitable substitutes essential for ongoing design support and procurement planning. The part operates within the 74AS logic family and is designed for applications requiring multiple independent AND gate functions with standard TTL-compatible voltage levels.

Substiute Parts

SN74AS808BNG4

Texas InstrumentsIn Stock: 1127SN74AS808BNG4 Datasheet

Current PartRFQ

SN74AS808BN

Texas InstrumentsIn Stock: 3692SN74AS808BN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74AS808BNG4 is determined by strict equivalence across the following critical parameters:

• Logic function: AND Gate with 6 circuits and 2 inputs per circuit
• Electrical specifications: Supply voltage 4.5V ~ 5.5V, output current 48mA (high and low), input logic levels 0.8V (low) and 2V (high), propagation delay 6ns @ 5V with 50pF load
• Physical form factor: 20-DIP package with through-hole mounting
• Compliance: ROHS3 compliance and REACH unaffected status

The SN74AS808BN qualifies as a direct substitute based on identical electrical and functional parameters. The primary distinction is product status and packaging format (tube vs. standard packaging), with no impact on electrical compatibility or performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SN74AS808BN is the manufacturer-recommended substitute for the discontinued SN74AS808BNG4. Both parts maintain identical electrical performance specifications and physical packaging requirements. The SN74AS808BN carries active product status, ensuring continued availability and supply chain stability. Both parts satisfy ROHS3 compliance requirements and REACH unaffected status, meeting current regulatory standards for electronic component procurement. Selection between these parts should be based on packaging format requirements and current inventory availability, as electrical and functional characteristics are equivalent.

Frequently Asked Questions (FAQ)

Q: Can the SN74AS808BN be used as a direct replacement for the SN74AS808BNG4?

A: Yes. Both parts are electrically and functionally identical, with matching supply voltage, output current, input logic levels, propagation delay, operating temperature range, and 20-DIP package specifications. The primary difference is product status and packaging format.

Q: What is the significance of the product status difference?

A: The SN74AS808BNG4 is discontinued at DiGi Electronics, indicating limited future availability. The SN74AS808BN maintains active status, ensuring reliable procurement for new designs and ongoing production requirements.

Q: Are there any package or mounting differences between these parts?

A: Both parts use identical 20-DIP (0.300", 7.62mm) through-hole packages. PCB layout and mounting procedures remain unchanged between the two part numbers.

Q: Do both parts meet current compliance standards?

A: Yes. Both the SN74AS808BNG4 and SN74AS808BN are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement and use.

Q: What parameters determine substitution eligibility for this logic IC?

A: Substitution is based on matching logic function (6-channel AND gate with 2 inputs), electrical specifications (4.5V ~ 5.5V supply, 48mA output current, 0.8V/2V input logic levels, 6ns propagation delay), physical package (20-DIP), and compliance certifications (ROHS3, REACH).