74HC259D,652 Equivalent & Substitute Parts

Part Overview

The 74HC259D,652 is a D-Type addressable 8-bit latch IC manufactured by Nexperia USA Inc., housed in a 16-SOIC package. This component functions as a 1:8 addressable latch with standard output configuration, operating across a 2V to 6V supply voltage range. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74HC259D,652
Manufacturer	Nexperia USA Inc.
Logic Type	D-Type, Addressable
Circuit Configuration	1 Channel 1:8
Output Type	Standard
Voltage - Supply	2V ~ 6V
Delay Time - Propagation	17ns
Current - Output High, Low	5.2mA, 5.2mA
Operating Temperature	-40°C ~ 125°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC259D,652 is determined by the following critical parameters:

Logic Type: D-Type, Addressable
Circuit Configuration: 1 Channel 1:8
Output Type: Standard
Voltage - Supply: 2V ~ 6V
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Current - Output High, Low: 5.2mA, 5.2mA
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are categorized as follows:

Direct Manufacturer Substitutes maintain identical electrical and mechanical specifications with active product status and improved availability.

Upgrade Substitutes offer enhanced performance characteristics (reduced propagation delay) while maintaining full electrical compatibility and extended operating temperature ranges.

Similar Substitutes share core functional parameters but may have variations in product status, packaging format, or operating temperature ranges. These parts are electrically compatible within the specified parameter constraints.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Circuit	Voltage - Supply	Propagation Delay	Output Current (High/Low)	Operating Temp	Package	Product Status
74HC259D,652	Nexperia USA Inc.	D-Type, Addressable	1:8	2V ~ 6V	17ns	5.2mA, 5.2mA	-40°C ~ 125°C	16-SOIC (0.154")	Obsolete
MC74HC259ADR2G	onsemi	D-Type, Addressable	1:8	2V ~ 6V	25ns	5.2mA, 5.2mA	-55°C ~ 125°C	16-SOIC (0.154")	Active
CD74HC259M96	Texas Instruments	D-Type, Addressable	1:8	2V ~ 6V	13ns	5.2mA, 5.2mA	-55°C ~ 125°C	16-SOIC (0.154")	Active
CD74HC259MT	Texas Instruments	D-Type, Addressable	1:8	2V ~ 6V	13ns	5.2mA, 5.2mA	-55°C ~ 125°C	16-SOIC (0.154")	Discontinued at DiGi Electronics
MC74HC259ADG	onsemi	D-Type, Addressable	1:8	2V ~ 6V	25ns	5.2mA, 5.2mA	-55°C ~ 125°C	16-SOIC (0.154")	Obsolete
SN74HC259D	Texas Instruments	D-Type, Addressable	1:8	2V ~ 6V	13ns	5.2mA, 5.2mA	-40°C ~ 85°C	16-SOIC (0.154")	Discontinued at DiGi Electronics
SN74HC259DR	Texas Instruments	D-Type, Addressable	1:8	2V ~ 6V	13ns	5.2mA, 5.2mA	-40°C ~ 85°C	16-SOIC (0.154")	Active
SN74HC259DT	Texas Instruments	D-Type, Addressable	1:8	2V ~ 6V	13ns	5.2mA, 5.2mA	-40°C ~ 85°C	16-SOIC (0.154")	Discontinued at DiGi Electronics
SN74HC259NSR	Texas Instruments	D-Type, Addressable	1:8	2V ~ 6V	13ns	5.2mA, 5.2mA	-40°C ~ 85°C	16-SO (0.209")	Active

Engineering Selection Recommendations

For Direct Replacement with Active Status: MC74HC259ADR2G (onsemi) provides active product status with identical electrical specifications. Extended operating temperature range (-55°C to 125°C) accommodates broader environmental requirements compared to the original part.

For Performance Enhancement: CD74HC259M96 and CD74HC259MT (Texas Instruments) deliver reduced propagation delay (13ns versus 17ns), improving circuit timing performance while maintaining full electrical compatibility. Both parts support extended temperature operation (-55°C to 125°C).

For Existing Inventory Utilization: SN74HC259DR (Texas Instruments) maintains active product status with 13ns propagation delay and standard operating temperature range (-40°C to 85°C). This part is currently available in quantity.

Package Consideration: SN74HC259NSR uses a wider 16-SO package (0.209" width) compared to the standard 16-SOIC (0.154" width). PCB layout modifications are required for this substitution.

All listed alternatives maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory and environmental compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC259NSR as a direct replacement for 74HC259D,652? A: SN74HC259NSR is electrically compatible but uses a different package footprint (16-SO at 0.209" width versus 16-SOIC at 0.154" width). PCB layout redesign is necessary for this substitution.

Q: What is the difference between the onsemi and Texas Instruments versions? A: Both manufacturers produce functionally equivalent parts within the 74HC259 family. Texas Instruments versions (SN74HC259 series and CD74HC259 series) offer 13ns propagation delay, while onsemi versions (MC74HC259 series) specify 25ns. All maintain identical supply voltage, output current, and package dimensions.

Q: Is CD74HC259MT still available for new designs? A: CD74HC259MT is discontinued at DiGi Electronics. For new designs, CD74HC259M96 (active status) or MC74HC259ADR2G (active status) are recommended alternatives.

Q: Do all substitute parts support the same operating temperature range? A: No. The original 74HC259D,652 operates from -40°C to 125°C. Texas Instruments SN74HC259 series parts operate from -40°C to 85°C. onsemi and Texas Instruments CD74HC259 series parts extend to -55°C to 125°C. Verify application temperature requirements before selection.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 rating, matching the original specification.

Q: What is the significance of propagation delay differences? A: Propagation delay affects circuit timing. The original part specifies 17ns. Substitutes range from 13ns to 25ns. Faster parts (13ns) improve timing margins; slower parts (25ns) require timing analysis to confirm compatibility with system clock frequencies.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message