CD74HC259M96 Equivalent & Substitute Parts

Part Overview

The CD74HC259M96 is a D-Type addressable latch IC manufactured by Texas Instruments, designed for 1:8 multiplexing applications in logic circuits. This 16-SOIC surface mount device operates across a 2V to 6V supply voltage range and is classified as Active product status. The part is RoHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.

Substitute parts become necessary when the primary part experiences supply constraints, discontinuation, or when design flexibility requires alternative manufacturers while maintaining functional equivalence. The parts listed below provide direct functional replacement based on matching electrical characteristics and package specifications.

Substiute Parts

CD74HC259M96

Texas InstrumentsIn Stock: 1548CD74HC259M96 Datasheet

Current PartRFQ

CD74HC259MT

Texas InstrumentsIn Stock: 1685CD74HC259MT Datasheet

Parametric EquivalentRFQ

MC74HC259ADR2G

onsemiIn Stock: 1187MC74HC259ADR2G Datasheet

DirectRFQ

74HC259D,653

Nexperia USA Inc.In Stock: 227274HC259D,653 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 CD74HC259M96 is determined by strict adherence to the following parameters:

• Logic Type: D-Type, Addressable
• Circuit Configuration: 1:8
• Output Type: Standard
• Supply Voltage Range: 2V ~ 6V
• Output Current Capability: 5.2mA (High and Low)
• Package: 16-SOIC form factor
• Mounting: Surface Mount
• Compliance: RoHS3, MSL Level 1

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in propagation delay time (13ns to 25ns) remain within acceptable operational tolerances for standard logic applications. Differences in product status (Active, Discontinued, Obsolete) and packaging format (Tape & Reel, Cut Tape, Tube) do not affect functional equivalence but may impact availability and procurement considerations.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status): CD74HC259M96 (Texas Instruments) and MC74HC259ADR2G (onsemi) are both Active products with full manufacturer support and current availability. Both meet all electrical and mechanical requirements for direct substitution.

Secondary Selection (Discontinued/Obsolete Status): CD74HC259MT (Texas Instruments) is discontinued at DiGi Electronics but remains functionally equivalent with identical propagation delay (13ns). 74HC259D,653 (Nexperia) is Active and offers the fastest propagation delay (17ns) among substitute options. MC74HC259ADG and NLVHC259ADR2G are classified as Obsolete and should be selected only when inventory constraints require their use.

Automotive Applications: NLVHC259ADR2G includes AEC-Q100 qualification and automotive-grade designation, making it suitable for automotive and harsh environment applications where this certification is required.

Temperature Range Consideration: 74HC259D,653 operates across -40°C to 125°C, which is narrower than the -55°C to 125°C range of other substitutes. This part is suitable for standard industrial and commercial applications but not for extended low-temperature military specifications.

Packaging Format Impact: All parts are available in 16-SOIC surface mount packages. Packaging format differences (Tape & Reel, Cut Tape, Tube) affect procurement and handling but do not impact electrical performance or PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can MC74HC259ADR2G replace CD74HC259M96 directly on the PCB? A: Yes. Both parts share identical 16-SOIC package dimensions, pin configuration, and electrical specifications. The 25ns propagation delay of the onsemi part is within acceptable tolerance for standard logic applications.

Q: What is the significance of the propagation delay difference between 13ns and 25ns? A: Propagation delay determines the maximum switching speed. The CD74HC259M96 at 13ns is faster than onsemi variants at 25ns. For most standard logic applications, both are functionally equivalent. High-speed timing-critical designs should verify that 25ns delay meets system requirements.

Q: Why are some parts listed as Obsolete? A: MC74HC259ADG and NLVHC259ADR2G are no longer in active production. They remain functionally equivalent but should be used only when current Active alternatives are unavailable. Obsolete parts may have limited inventory and extended lead times.

Q: Is NLVHC259ADR2G suitable for automotive applications? A: Yes. NLVHC259ADR2G carries AEC-Q100 qualification and automotive-grade designation, making it appropriate for automotive and mission-critical applications requiring this certification.

Q: Does operating temperature range affect substitution eligibility? A: The 74HC259D,653 operates from -40°C to 125°C, which is narrower than other substitutes at -55°C to 125°C. For applications requiring full -55°C operation, select alternatives with the extended range. For standard industrial applications, -40°C minimum is typically sufficient.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are RoHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the CD74HC259M96.

Q: What packaging formats are available? A: CD74HC259M96, CD74HC259MT, MC74HC259ADR2G, and NLVHC259ADR2G are supplied in Tape & Reel format. 74HC259D,653 is available in Cut Tape and Digi-Reel format. MC74HC259ADG is supplied in Tube format. All are compatible with standard PCB assembly processes.