SN74F161ANG4 Equivalent & Substitute Parts

Part Overview

The SN74F161ANG4 is a 4-bit binary counter IC manufactured by Texas Instruments, housed in a 16-DIP package. This component functions as a synchronous counter with asynchronous reset, capable of counting at rates up to 100 MHz. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The availability of active alternative models ensures design continuity and supply chain reliability.

Substiute Parts

SN74F161ANG4

Texas InstrumentsIn Stock: 821SN74F161ANG4 Datasheet

Current PartRFQ

SN74F161AN

Texas InstrumentsIn Stock: 2152SN74F161AN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74F161ANG4 is determined by strict equivalence across the following critical parameters:

• Base product number (74F161 series)
• Logic type (Binary Counter)
• Bit width (4-bit configuration)
• Count rate capability (100 MHz minimum)
• Supply voltage range (4.5 V ~ 5.5 V)
• Operating temperature range (0°C ~ 70°C)
• Package type (16-DIP)
• Reset and timing characteristics (Asynchronous reset, Synchronous timing, Positive edge trigger)

The SN74F161AN meets all these criteria and qualifies as a direct functional equivalent. Both parts share identical electrical specifications, pin configurations, and operational characteristics. The primary distinction is product status: SN74F161ANG4 is discontinued, while SN74F161AN remains active in production.

Parameter Comparison

Engineering Selection Recommendations

The SN74F161AN is the recommended substitute for the discontinued SN74F161ANG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The SN74F161AN carries active product status with confirmed inventory availability, ensuring reliable procurement for new designs and replacement applications.

Both parts comply with ROHS3 and REACH standards, meeting current environmental and regulatory requirements. The through-hole 16-DIP package format remains consistent, allowing direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74F161AN be used as a direct replacement for the SN74F161ANG4?

A: Yes. Both parts are functionally identical 4-bit binary counters with matching electrical specifications, pin configurations, and operating characteristics. The SN74F161AN is the active production equivalent.

Q: Are there any differences in package dimensions between these parts?

A: No. Both parts use the 16-DIP (0.300", 7.62mm) package format with identical pin spacing and mechanical dimensions, enabling direct board-level substitution.

Q: What is the significance of the "NG4" and "AN" suffixes?

A: These suffixes denote packaging and distribution variants within the 74F161 product line. The "NG4" indicates a specific packaging configuration that is now discontinued. The "AN" variant remains in active production.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74F161ANG4 and SN74F161AN are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the maximum count rate for these parts?

A: Both parts support a count rate of 100 MHz, making them suitable for high-speed counting applications within the specified operating temperature range.

Q: Are there inventory considerations when selecting between these parts?

A: The SN74F161ANG4 is discontinued and has limited remaining stock. The SN74F161AN is actively produced with confirmed inventory availability, making it the practical choice for ongoing procurement.