74HCT164D,652 Equivalent & Substitute Parts

Part Overview

The 74HCT164D,652 is an 8-bit serial-in parallel-out (SIPO) shift register manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This logic component converts serial input data into parallel output format, operating across a 4.5V to 5.5V supply voltage range with an operating temperature span of -40°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Logic Type	Shift Register
Function	Serial to Parallel
Number of Elements	1
Number of Bits per Element	8
Output Type	Push-Pull
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package / Case	14-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 74HCT164D,652 is determined by strict alignment across the following critical parameters:

Logic Type & Function: Must be Shift Register with Serial to Parallel conversion capability
Bit Configuration: 1 Element, 8 Bits per Element
Output Type: Push-Pull configuration
Supply Voltage: 4.5V ~ 5.5V range
Package & Mounting: 14-SOIC surface mount form factor
Base Product Number: 74HCT164 series designation

Substitute parts are categorized as Direct (pin-compatible, identical electrical performance), Upgrade (enhanced temperature or compliance specifications), or Similar (compatible with minor operational differences).

Parameter Comparison

Part Number	Manufacturer	Product Status	Operating Temperature	Package	RoHS Status	Inventory
74HCT164D,652	Nexperia USA Inc.	Obsolete	-40°C ~ 125°C	14-SOIC	ROHS3 Compliant	1045 Pcs
74HCT164S14-13	Diodes Incorporated	Active	-40°C ~ 125°C	14-SOIC	ROHS3 Compliant	27519 Pcs
MM74HCT164MX	onsemi	Active	-40°C ~ 85°C	14-SOIC	ROHS3 Compliant	3536 Pcs
CD74HCT164M	Harris Corporation	Obsolete	-55°C ~ 125°C	14-SOIC	RoHS Non-Compliant	1900 Pcs
CD74HCT164M96	Texas Instruments	Active	-55°C ~ 125°C	14-SOIC	ROHS3 Compliant	10100 Pcs
CD74HCT164MT	National Semiconductor	Active	-55°C ~ 125°C	14-SOIC	Not Specified	10417 Pcs
MM74HCT164M	onsemi	Obsolete	-40°C ~ 85°C	14-SOIC	ROHS3 Compliant	4965 Pcs

Engineering Selection Recommendations

Direct Substitutes (Pin-Compatible, Identical Electrical Performance)

74HCT164S14-13 (Diodes Incorporated) is the primary direct substitute. This part maintains identical electrical specifications and operating temperature range (-40°C to 125°C) while offering active product status and significantly higher inventory availability (27519 units). ROHS3 compliance and MSL 1 rating match the original specification.

MM74HCT164MX (onsemi) functions as a direct electrical substitute with identical voltage and logic specifications. However, the operating temperature range is limited to -40°C to 85°C, making it suitable only for applications not requiring the full -40°C to 125°C envelope of the original part.

Upgrade Substitutes (Enhanced Specifications)

CD74HCT164M96 (Texas Instruments) and CD74HCT164MT (National Semiconductor) both extend the operating temperature range to -55°C to 125°C, providing enhanced low-temperature performance. Both maintain ROHS3 compliance and 14-SOIC packaging. CD74HCT164M96 is recommended for new designs due to active product status and confirmed ROHS3 compliance.

Obsolete Alternatives (Not Recommended for New Designs)

CD74HCT164M (Harris Corporation) and MM74HCT164M (onsemi) are classified as obsolete. CD74HCT164M additionally carries RoHS non-compliance status, disqualifying it from applications requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can 74HCT164S14-13 replace 74HCT164D,652 in existing designs?

A: Yes. 74HCT164S14-13 maintains identical electrical specifications, supply voltage range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 125°C), and 14-SOIC package configuration. Pin compatibility is assured within the 74HCT164 series.

Q: What is the difference between direct and upgrade substitutes?

A: Direct substitutes (74HCT164S14-13, MM74HCT164MX) provide equivalent electrical performance across the specified operating range. Upgrade substitutes (CD74HCT164M96, CD74HCT164MT) extend the low-temperature operating limit to -55°C, beneficial for applications requiring enhanced thermal performance.

Q: Why is MM74HCT164MX limited to -40°C to 85°C?

A: This represents the manufacturer's specified operating temperature range for this variant. Applications requiring operation above 85°C or below -40°C must use alternatives with extended temperature ratings such as CD74HCT164M96 or CD74HCT164MT.

Q: Are all substitute parts ROHS3 compliant?

A: No. CD74HCT164M (Harris Corporation) is RoHS non-compliant. All other listed substitutes maintain ROHS3 compliance, matching the original 74HCT164D,652 specification.

Q: Which substitute offers the best availability?

A: 74HCT164S14-13 (Diodes Incorporated) provides the highest inventory level at 27519 units, combined with active product status and full specification compatibility.

Q: Can I use CD74HCT164M for new production?

A: No. CD74HCT164M is classified as obsolete and carries RoHS non-compliance status. For new designs, select from active alternatives: 74HCT164S14-13, MM74HCT164MX, CD74HCT164M96, or CD74HCT164MT.

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