CD74HC259MT Equivalent & Substitute Parts

Part Overview

The CD74HC259MT is a D-Type addressable latch IC manufactured by Texas Instruments, designed for 1:8 multiplexing applications in logic circuits. This component features a 16-SOIC surface mount package and operates across a 2V to 6V supply voltage range. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain identical electrical characteristics and package specifications to ensure direct compatibility in existing designs.

Substiute Parts

CD74HC259MT

Texas InstrumentsIn Stock: 1685CD74HC259MT Datasheet

Current PartRFQ

CD74HC259M96

Texas InstrumentsIn Stock: 1548CD74HC259M96 Datasheet

Parametric EquivalentRFQ

MC74HC259ADR2G

onsemiIn Stock: 1187MC74HC259ADR2G Datasheet

DirectRFQ

74HC259D,653

Nexperia USA Inc.In Stock: 227274HC259D,653 Datasheet

MFR RecommendedRFQ

74HC259D-Q100,118

Nexperia USA Inc.In Stock: 118374HC259D-Q100,118 Datasheet

MFR RecommendedRFQ

MC74HC259ADG

onsemiIn Stock: 1436MC74HC259ADG Datasheet

MFR RecommendedRFQ

NLVHC259ADR2G

onsemiIn Stock: 1059NLVHC259ADR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC259MT is determined by strict adherence to the following parameters:

Critical Parameters for Substitution:

• Logic Type: D-Type, Addressable
• Circuit Configuration: 1 Channel 1:8
• Output Type: Standard
• Voltage Supply Range: 2V ~ 6V
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Propagation Delay Time: Up to 25ns (original: 13ns)
• Operating Temperature Range: Minimum -40°C acceptable (original: -55°C)
• Manufacturer: Texas Instruments, onsemi, Nexperia USA Inc.
• Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Tube

All substitute parts listed maintain the core electrical and mechanical specifications required for direct functional replacement in 74HC259 addressable latch applications.

Parameter Comparison

Engineering Selection Recommendations

Preferred Substitutes (Active Product Status):

CD74HC259M96 (Texas Instruments) is the primary equivalent substitute. This part maintains identical propagation delay (13ns) and operating temperature range (-55°C ~ 125°C) as the original CD74HC259MT, with confirmed active product status and 1537 units in stock.

74HC259D,653 (Nexperia USA Inc.) is a secondary equivalent with active status. This part operates within -40°C ~ 125°C temperature range and exhibits 17ns propagation delay, both within acceptable substitution parameters. Cut Tape and Digi-Reel packaging options are available with 2200 units in stock.

74HC259D-Q100,118 (Nexperia USA Inc.) is suitable for automotive applications requiring AEC-Q100 qualification. This part maintains active status with 1074 units in stock and operates within -40°C ~ 125°C range with 17ns propagation delay.

MC74HC259ADR2G (onsemi) is available with active product status and 1108 units in stock. This part exhibits 25ns propagation delay and -55°C ~ 125°C operating range, meeting all substitution criteria.

Obsolete Alternatives (Not Recommended for New Designs):

MC74HC259ADG (onsemi) and NLVHC259ADR2G (onsemi) are listed as obsolete products. While electrically compatible, these parts should not be selected for new production due to discontinued status and limited long-term availability.

Frequently Asked Questions (FAQ)

Q: Can CD74HC259M96 directly replace CD74HC259MT in existing designs?

A: Yes. CD74HC259M96 maintains identical electrical specifications including 13ns propagation delay, 2V ~ 6V supply voltage, and -55°C ~ 125°C operating temperature. Both use 16-SOIC surface mount packaging with identical pinout and functionality.

Q: What is the difference between the Nexperia 74HC259D,653 and 74HC259D-Q100,118 parts?

A: Both are manufactured by Nexperia USA Inc. with identical electrical characteristics (17ns propagation delay, 2V ~ 6V supply). The 74HC259D-Q100,118 variant includes AEC-Q100 automotive qualification and is packaged in Tape & Reel format. The 74HC259D,653 is available in Cut Tape and Digi-Reel packaging. Selection depends on application requirements and packaging preference.

Q: Are onsemi MC74HC259ADR2G and NLVHC259ADR2G interchangeable?

A: Both parts are electrically equivalent with 25ns propagation delay and identical supply voltage range. However, NLVHC259ADR2G is listed as obsolete, while MC74HC259ADR2G maintains active status. MC74HC259ADR2G is the recommended choice for new applications.

Q: Does propagation delay variation affect circuit compatibility?

A: All substitute parts operate within acceptable propagation delay ranges (13ns to 25ns). Selection should be based on specific timing requirements of the application. CD74HC259M96 and the original CD74HC259MT both provide 13ns delay for timing-critical applications. Nexperia parts provide 17ns delay, and onsemi alternatives provide 25ns delay.

Q: What packaging options are available for substitutes?

A: CD74HC259M96 is supplied in Tape & Reel format. 74HC259D,653 is available in Cut Tape and Digi-Reel packaging. 74HC259D-Q100,118 is supplied in Tape & Reel format. MC74HC259ADR2G is supplied in Tape & Reel format. MC74HC259ADG is supplied in Tube format. All maintain the 16-SOIC package specification.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the original CD74HC259MT specifications.