CD74HC164MT 8-Bit Shift Register Equivalent & Substitute Parts

Part Overview

The CD74HC164MT is an 8-bit serial-input/parallel-output shift register manufactured by Texas Instruments in a 14-SOIC surface mount package. This logic component converts serial data streams into parallel outputs, functioning as a fundamental building block in digital signal processing and data conversion applications.

The CD74HC164MT carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identification of equivalent substitute parts from active manufacturers to ensure design continuity and supply chain reliability for new production runs and long-term system support.

Key Parameters

Parameter	Value
Logic Type	Shift Register
Number of Elements	1
Number of Bits per Element	8
Function	Serial to Parallel
Output Type	Push-Pull
Voltage Supply Range	2V to 6V
Operating Temperature Range	-55°C to 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Series	74HC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CD74HC164MT are qualified based on strict electrical and mechanical parameter matching within the 74HC logic family. The following parameters determine substitution eligibility:

Critical Matching Parameters:

Logic Type: Shift Register (8-bit, 1 element)
Function: Serial to Parallel conversion
Output Type: Push-Pull configuration
Voltage Supply Range: 2V to 6V minimum compatibility
Package / Case: 14-SOIC form factor
Mounting Type: Surface Mount

Acceptable Variation Parameters:

Operating Temperature Range: Minimum -40°C acceptable (main part: -55°C); Maximum 85°C to 125°C acceptable
Product Status: Active or Obsolete (Last Time Buy parts excluded from substitution list)
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Bulk acceptable
Manufacturer: Any qualified 74HC164 base product number manufacturer

All substitute parts listed maintain identical pinout, logic function, and electrical performance within the specified voltage and temperature operating windows.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Voltage Supply	Operating Temperature	Package	Packaging Format	RoHS Status	Inventory (Pcs)
CD74HC164MT	Texas Instruments	Last Time Buy	2V ~ 6V	-55°C ~ 125°C	14-SOIC	Tape & Reel	ROHS3 Compliant	3,000
CD74HC164M96	Texas Instruments	Active	2V ~ 6V	-55°C ~ 125°C	14-SOIC	Tape & Reel	ROHS3 Compliant	5,100
MM74HC164MX	Fairchild Semiconductor	Active	2V ~ 6V	-40°C ~ 85°C	14-SOIC	Not Specified	Not Specified	25,300
74HC164D,653	Nexperia USA Inc.	Active	2V ~ 6V	-40°C ~ 125°C	14-SOIC	Cut Tape & Digi-Reel	ROHS3 Compliant	40,100
74HC164S14-13	Diodes Incorporated	Active	2V ~ 6V	-40°C ~ 125°C	14-SOIC	Tape & Reel	ROHS3 Compliant	128,980
MC74HC164ADG	Motorola	Active	2V ~ 6V	-55°C ~ 125°C	14-SOIC	Bulk	Not Specified	6,301
MM74HC164M	Fairchild Semiconductor	Active	2V ~ 6V	-40°C ~ 85°C	14-SOIC	Not Specified	Not Specified	2,200
MC74HC164ADR2G	onsemi	Active	2V ~ 6V	-55°C ~ 125°C	14-SOIC	Tape & Reel	ROHS3 Compliant	125,200
MC74HC164BDR2G	onsemi	Active	2V ~ 6V	-55°C ~ 125°C	14-SOIC	Tape & Reel	ROHS3 Compliant	55,400
NLV74HC164ADR2G	onsemi	Obsolete	2V ~ 6V	-55°C ~ 125°C	14-SOIC	Tape & Reel	ROHS3 Compliant	3,169

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

Parts with Active product status and full temperature range compatibility (-55°C to 125°C) are preferred for applications requiring extended operating conditions:

MC74HC164ADR2G (onsemi): 125,200 units in stock, ROHS3 compliant, Tape & Reel packaging
MC74HC164BDR2G (onsemi): 55,400 units in stock, ROHS3 compliant, Tape & Reel packaging
CD74HC164M96 (Texas Instruments): 5,100 units in stock, ROHS3 compliant, Tape & Reel packaging

Secondary Substitutes (Temperature-Limited Applications):

Parts with Active product status but reduced temperature range (-40°C to 85°C) are suitable for applications operating within standard industrial temperature windows:

74HC164S14-13 (Diodes Incorporated): 128,980 units in stock, highest inventory availability, ROHS3 compliant, Tape & Reel packaging
74HC164D,653 (Nexperia USA Inc.): 40,100 units in stock, ROHS3 compliant, Cut Tape & Digi-Reel packaging
MM74HC164MX (Fairchild Semiconductor): 25,300 units in stock, highest inventory among Fairchild options

Avoid for New Designs:

NLV74HC164ADR2G carries Obsolete product status and should not be selected for new production despite meeting electrical parameters.

All recommended substitutes maintain ROHS3 compliance and MSL Level 1 moisture sensitivity ratings where specified, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I use MM74HC164MX or MM74HC164M as direct replacements for CD74HC164MT in applications requiring -55°C operation?

A: No. Both Fairchild Semiconductor variants specify -40°C to 85°C operating temperature range, which does not meet the -55°C minimum requirement of the original CD74HC164MT. These parts are suitable only for applications operating within -40°C to 85°C windows.

Q: What is the difference between CD74HC164M96 and CD74HC164MT?

A: Both are Texas Instruments 74HC164 shift registers in 14-SOIC packaging with identical electrical specifications (2V to 6V supply, -55°C to 125°C operation). The primary difference is product status: CD74HC164MT is Last Time Buy (discontinued), while CD74HC164M96 is Active (current production). CD74HC164M96 is the direct Texas Instruments replacement.

Q: Are all substitute parts available in Tape & Reel packaging?

A: No. MC74HC164ADG is supplied in Bulk packaging only. MM74HC164MX and MM74HC164M do not specify packaging format. For automated assembly processes requiring Tape & Reel format, select from: CD74HC164M96, 74HC164S14-13, MC74HC164ADR2G, MC74HC164BDR2G, or NLV74HC164ADR2G.

Q: Which substitute offers the best inventory availability?

A: 74HC164S14-13 (Diodes Incorporated) provides the highest inventory at 128,980 units, followed by MC74HC164ADR2G (onsemi) at 125,200 units. Both are Active products with full ROHS3 compliance and standard temperature range operation.

Q: Do all substitutes maintain the same pinout and logic function?

A: Yes. All listed substitutes are qualified 74HC164 base product number variants. They maintain identical 14-SOIC pinout, 8-bit serial-to-parallel shift register function, and push-pull output configuration. Electrical performance is equivalent within specified voltage and temperature operating ranges.

Q: Is NLV74HC164ADR2G suitable for new production designs?

A: No. NLV74HC164ADR2G carries Obsolete product status, indicating discontinued manufacturing. While electrical parameters match the CD74HC164MT, obsolete parts should not be selected for new designs due to limited remaining inventory and no future production availability.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are ROHS3 compliant where specified. REACH Unaffected status applies to parts with this designation. All parts carry ECCN EAR99 and HTSUS 8542.39.0001 classifications. Verify specific compliance documentation with individual manufacturers for applications requiring additional certifications.

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