SN74HC259NG4 Equivalent & Substitute Parts

Part Overview

The SN74HC259NG4 is an 8-bit addressable latch IC manufactured by Texas Instruments, classified as a D-Type, Addressable logic component with a 1:8 circuit configuration. This device is designed for applications requiring addressable data storage and control in digital systems. The part is currently discontinued at DiGi Electronics, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

SN74HC259NG4

Texas InstrumentsIn Stock: 936SN74HC259NG4 Datasheet

Current PartRFQ

SN74HC259N

Texas InstrumentsIn Stock: 2159SN74HC259N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HC259NG4 is determined by strict equivalence across the following critical parameters:

• Logic Type and Circuit Configuration: D-Type, Addressable 1:8 topology
• Electrical Specifications: 2V ~ 6V supply voltage, 13ns propagation delay, 5.2mA output current
• Package Type: 16-DIP (0.300", 7.62mm) through-hole mounting
• Operating Temperature Range: -40°C ~ 85°C
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

The SN74HC259N qualifies as a direct substitute based on identical electrical characteristics, package specifications, and functional design. The primary distinction is product status and packaging format (tube vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The SN74HC259N is the qualified substitute for the SN74HC259NG4. Both components share identical electrical specifications, functional design, and package geometry. The SN74HC259N maintains active product status with Texas Instruments, ensuring continued availability and supply chain reliability. Both parts meet ROHS3 compliance and REACH requirements, satisfying regulatory standards for industrial and commercial applications. The SN74HC259N is available in tube packaging with higher inventory levels (2100 pcs), providing procurement flexibility compared to the discontinued SN74HC259NG4.

Frequently Asked Questions (FAQ)

Q: Can the SN74HC259N directly replace the SN74HC259NG4 in existing designs?

A: Yes. The SN74HC259N is a direct functional and electrical equivalent. Both components feature identical logic type, circuit configuration, supply voltage range, propagation delay, output current specifications, and 16-DIP package geometry. No circuit modifications are required.

Q: What is the difference between SN74HC259NG4 and SN74HC259N?

A: The primary differences are product status and packaging format. The SN74HC259NG4 is discontinued at DiGi Electronics, while the SN74HC259N maintains active status. The SN74HC259N is supplied in tube packaging. All electrical and functional parameters are identical.

Q: Are there any temperature or voltage operating differences?

A: No. Both parts operate across the identical temperature range (-40°C ~ 85°C) and supply voltage range (2V ~ 6V). Propagation delay and output current specifications are equivalent.

Q: Is the 16-DIP package compatible with existing PCB layouts?

A: Yes. Both the SN74HC259NG4 and SN74HC259N use the 16-DIP (0.300", 7.62mm) through-hole package. PCB footprints and mounting requirements are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for industrial and commercial applications.