N74F260D,623 NOR Gate IC Equivalent & Substitute Parts

Part Overview

The N74F260D,623 is a 2-channel NOR gate logic IC manufactured by NXP USA Inc. in a 14-SO surface mount package. This component implements five-input NOR gate logic functions with TTL-compatible voltage levels and propagation delays suitable for digital logic applications. The part is currently classified as obsolete, making identification of equivalent and substitute components necessary for design continuity and procurement planning.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	2
Number of Inputs	5
Voltage Supply Range	4.5V ~ 5.5V
Output Current (High/Low)	1mA / 20mA
Input Logic Level Low	0.8V
Input Logic Level High	2V
Max Propagation Delay	5.5ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the N74F260D,623 is determined by strict equivalence across the following critical parameters:

Logic function: 2-channel NOR gate with 5-input configuration
Electrical specifications: 4.5V–5.5V supply voltage, 1mA/20mA output current, 0.8V/2V input logic levels, 5.5ns propagation delay
Package compatibility: 14-SOIC surface mount form factor
Environmental compliance: ROHS3 compliance, MSL Level 1

The substitute parts SN74F260D and SN74F260DR, both manufactured by Texas Instruments, meet all these criteria. Both are members of the 74F logic series and maintain identical functional and electrical characteristics. The primary distinction between substitutes is packaging format: SN74F260D is supplied in tube packaging, while SN74F260DR is supplied in tape and reel format.

Parameter Comparison

Parameter	N74F260D,623 (NXP)	SN74F260D (TI)	SN74F260DR (TI)
Logic Type	NOR Gate	NOR Gate	NOR Gate
Number of Circuits	2	2	2
Number of Inputs	5	5	5
Voltage Supply Range	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Output Current (High/Low)	1mA / 20mA	1mA / 20mA	1mA / 20mA
Input Logic Level Low	0.8V	0.8V	0.8V
Input Logic Level High	2V	2V	2V
Max Propagation Delay	5.5ns @ 5V, 50pF	5.5ns @ 5V, 50pF	5.5ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Package Type	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Last Time Buy	Active

Engineering Selection Recommendations

For applications currently using the N74F260D,623, the SN74F260DR is the preferred substitute. This part is manufactured by Texas Instruments, carries active product status, and is supplied in tape and reel format suitable for automated assembly processes. All electrical and functional parameters are identical to the original component, with full ROHS3 compliance and MSL Level 1 rating maintained.

The SN74F260D serves as an alternative substitute when tube packaging is required for lower-volume applications or manual assembly processes. This part carries Last Time Buy status, indicating limited future availability.

Both Texas Instruments substitutes are direct functional and electrical equivalents with no design modifications required for integration into existing circuits.

Frequently Asked Questions (FAQ)

Q: Can SN74F260D and SN74F260DR be used interchangeably with N74F260D,623?

A: Yes. Both Texas Instruments parts are electrical and functional equivalents. The difference between them is packaging format only: SN74F260D uses tube packaging, while SN74F260DR uses tape and reel packaging. Both maintain identical pin configuration, electrical specifications, and performance characteristics.

Q: What is the difference between tube and tape & reel packaging?

A: Tube packaging is used for lower-volume orders and manual assembly, with components supplied in plastic tubes. Tape and reel packaging is used for high-volume automated assembly, with components wound on continuous tape and supplied on reels. Both formats contain the same component with identical specifications.

Q: Are there any pin configuration differences between the substitute parts?

A: No. All three parts use the 14-SOIC package with identical pin assignments. Direct PCB layout compatibility is maintained without modification.

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

A: The N74F260D,623 is classified as obsolete, meaning NXP has discontinued production. The SN74F260D carries Last Time Buy status, indicating Texas Instruments will cease production after a specified date. The SN74F260DR is classified as active, meaning Texas Instruments continues full production and support. For new designs or long-term procurement, SN74F260DR is the recommended choice.

Q: Do all three parts meet the same environmental and compliance standards?

A: Yes. All three parts are ROHS3 compliant, carry MSL Level 1 rating (unlimited moisture sensitivity protection), and are REACH unaffected. Compliance certifications are identical across all substitutes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message