74HC595DR2G Equivalent & Substitute Parts

Part Overview

The 74HC595DR2G is an 8-bit shift register with tri-state output manufactured by onsemi in a 16-SOIC surface mount package. This component functions as a serial-to-parallel converter, commonly used in digital logic applications for data shifting and storage operations. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Specification
Manufacturer Part Number	74HC595DR2G
Manufacturer	onsemi
Logic Type	Shift Register
Number of Bits per Element	8
Output Type	Tri-State
Function	Serial to Parallel, Serial
Voltage - Supply	2V ~ 6V
Operating Temperature	-55°C ~ 125°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 74HC595DR2G is determined by the following critical parameters:

Logic Type & Function: All substitutes must be 8-bit shift registers with serial-to-parallel conversion capability
Output Configuration: Tri-state output is required for functional compatibility
Voltage Supply Range: 2V ~ 6V operating range must be maintained
Package Type: 16-SOIC surface mount package is the primary mechanical requirement
Electrical Performance: Operating temperature range and tri-state output characteristics determine functional interchangeability

Substitutes are grouped into three categories:

Direct Equivalents (Same Base Number): MM74HC595M, MM74HC595MX, MC74HC595ADR2G, 74HC595D,118, 74HC595D-Q100,118, CD74HC595DW, CD74HC595DWR, CD74HC595M — These maintain the 74HC595 base designation with identical functional specifications.
Parametric Equivalents (Different Base Number): MC74HC4094ADR2G, NLV74HC4094BDR2G — These use the 74HC4094 base designation but provide equivalent 8-bit shift register functionality with tri-state output in the same package.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Bits	Output Type	Voltage Supply	Temp Range	Package	Status	RoHS
74HC595DR2G	onsemi	Shift Register	8	Tri-State	2V ~ 6V	-55°C ~ 125°C	16-SOIC	Obsolete	N/A
MM74HC595M	onsemi	Shift Register	8	Tri-State	2V ~ 6V	-40°C ~ 85°C	16-SOIC	Active	ROHS3
MM74HC595MX	onsemi	Shift Register	8	Tri-State	2V ~ 6V	-40°C ~ 85°C	16-SOIC	Active	ROHS3
MC74HC595ADR2G	onsemi	Shift Register	8	Tri-State	2V ~ 6V	-55°C ~ 125°C	16-SOIC	Active	ROHS3
MC74HC4094ADR2G	onsemi	Shift Register	8	Tri-State	2V ~ 6V	-55°C ~ 125°C	16-SOIC	Last Time Buy	ROHS3
NLV74HC4094BDR2G	onsemi	Shift Register	8	Tri-State	2V ~ 6V	-55°C ~ 125°C	16-SOIC	Obsolete	ROHS3
74HC595D,118	Nexperia USA Inc.	Shift Register	8	Tri-State	2V ~ 6V	-40°C ~ 125°C	16-SOIC	Active	ROHS3
74HC595D-Q100,118	Nexperia USA Inc.	Shift Register	8	Tri-State	2V ~ 6V	-40°C ~ 125°C	16-SOIC	Active	ROHS3
CD74HC595DW	Texas Instruments	Shift Register	8	Tri-State	2V ~ 6V	-55°C ~ 125°C	16-SOIC	Last Time Buy	ROHS3
CD74HC595DWR	Texas Instruments	Shift Register	8	Tri-State	2V ~ 6V	-55°C ~ 125°C	16-SOIC	Active	ROHS3
CD74HC595M	Texas Instruments	Shift Register	8	Tri-State	2V ~ 6V	-55°C ~ 125°C	16-SOIC	Discontinued	ROHS3

Engineering Selection Recommendations

For Active Production Applications:

MC74HC595ADR2G is the primary recommended substitute. This part maintains the full -55°C ~ 125°C operating temperature range of the original 74HC595DR2G, carries Active product status, and is ROHS3 compliant. It is available in high volume (505,100 pcs) and provides direct functional equivalence.

For Standard Commercial Temperature Range:

MM74HC595M or MM74HC595MX are suitable alternatives when the reduced operating temperature range (-40°C ~ 85°C) is acceptable for the application. Both parts are Active status with ROHS3 compliance. MM74HC595MX offers Cut Tape and Digi-Reel packaging options.

For Automotive and Extended Temperature Applications:

74HC595D-Q100,118 from Nexperia is qualified to AEC-Q100 automotive standards and maintains the extended temperature range (-40°C ~ 125°C). This part is Active status and suitable for automotive-grade designs.

For Extended Temperature Range Without Automotive Qualification:

CD74HC595DWR from Texas Instruments maintains the -55°C ~ 125°C operating range with Active product status and ROHS3 compliance. This part is available in Cut Tape packaging.

Parametric Equivalents:

MC74HC4094ADR2G and NLV74HC4094BDR2G provide equivalent 8-bit shift register functionality with tri-state output. These parts use the 74HC4094 base designation but are functionally compatible. MC74HC4094ADR2G is Last Time Buy status; NLV74HC4094BDR2G is Obsolete.

Frequently Asked Questions (FAQ)

Q: Can MM74HC595M replace 74HC595DR2G in all applications?

A: MM74HC595M is functionally equivalent but operates over -40°C ~ 85°C instead of -55°C ~ 125°C. It is suitable only for applications within this narrower temperature range. For full temperature range compatibility, use MC74HC595ADR2G or CD74HC595DWR.

Q: What is the difference between MC74HC4094ADR2G and MC74HC595ADR2G?

A: Both are 8-bit shift registers with tri-state output in 16-SOIC packages and identical electrical specifications (2V ~ 6V, -55°C ~ 125°C). The primary difference is the base part number designation (74HC4094 vs. 74HC595). Both are functionally interchangeable for serial-to-parallel shift register applications.

Q: Are there package differences between substitute parts?

A: Most substitutes use the standard 16-SOIC (0.154", 3.90mm Width) package. CD74HC595DW and CD74HC595DWR use a wider 16-SOIC variant (0.295", 7.50mm Width). Verify package dimensions against PCB layout requirements before selection.

Q: Which substitute has the best long-term availability?

A: MC74HC595ADR2G carries Active product status with the highest inventory (505,100 pcs) and is the most suitable for new designs requiring long-term supply assurance.

Q: Is ROHS3 compliance required for all substitutes?

A: All listed substitutes except the original 74HC595DR2G carry ROHS3 compliance. If ROHS3 compliance is a design requirement, all recommended substitutes meet this specification.

Q: Can I use 74HC595D,118 from Nexperia as a direct replacement?

A: Yes. 74HC595D,118 is functionally equivalent with identical electrical specifications and 16-SOIC packaging. It is Active status and ROHS3 compliant. The operating temperature range is -40°C ~ 125°C, which covers the original part's range for most commercial applications.

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