74HC164DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC164DB,112 is an 8-bit serial-in parallel-out shift register manufactured by Nexperia USA Inc. in a 14-SSOP surface mount package. This logic component converts serial input data into parallel output format, operating across a 2V to 6V supply voltage range with a temperature range of -40°C to 125°C. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74HC164DB,112

Nexperia USA Inc.In Stock: 89974HC164DB,112 Datasheet

Current PartRFQ

MM74HC164MTCX

Fairchild SemiconductorIn Stock: 1518MM74HC164MTCX Datasheet

SimilarRFQ

SN74HC164PW

Texas InstrumentsIn Stock: 2068SN74HC164PW Datasheet

SimilarRFQ

SN74HC164PWR

Texas InstrumentsIn Stock: 2147SN74HC164PWR Datasheet

SimilarRFQ

SN74HC164PWT

Texas InstrumentsIn Stock: 2114SN74HC164PWT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC164DB,112 is determined by the following critical parameters:

• Logic Type: Shift Register (8-bit, serial-in parallel-out configuration)
• Number of Elements: 1
• Number of Bits per Element: 8
• Function: Serial to Parallel conversion
• Output Type: Push-Pull
• Voltage - Supply: 2V ~ 6V
• Mounting Type: Surface Mount
• Base Product Number: 74HC164 series

Substitute parts must maintain identical functional specifications and electrical characteristics. Package variations (14-SSOP vs. 14-TSSOP) are acceptable provided the pin configuration and electrical performance remain compatible. All identified substitutes belong to the 74HC164 logic family and share the same core functionality, supply voltage range, and push-pull output architecture.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the 74HC164DB,112, the following substitutes are available based on product status and compliance:

Primary Recommendation: SN74HC164PWR (Texas Instruments) This part maintains active product status with full ROHS3 compliance and MSL Level 1 rating. It supports the complete operating temperature range (-40°C to 125°C) and is available in Cut Tape and Digi-Reel packaging formats. The 14-TSSOP package is functionally compatible with the original 14-SSOP package.

Secondary Recommendation: SN74HC164PW (Texas Instruments) Functionally equivalent with identical electrical specifications and temperature range. Currently discontinued at DiGi Electronics but available through alternative distribution channels. Suitable for applications where tube packaging is acceptable.

Alternative: MM74HC164MTCX (Fairchild Semiconductor) Active product status with push-pull output configuration. Operating temperature range is limited to -40°C to 85°C, making this suitable only for applications not requiring the full 125°C upper temperature limit. Available in bulk packaging.

All substitute parts share the 74HC164 base product number and maintain functional equivalence for serial-to-parallel shift register applications within the specified voltage and temperature operating windows.

Frequently Asked Questions (FAQ)

Q: Can the 74HC164DB,112 be directly replaced with SN74HC164PWR? A: Yes. Both parts are 8-bit serial-in parallel-out shift registers with identical logic function, push-pull output type, and 2V to 6V supply voltage range. The package change from 14-SSOP to 14-TSSOP requires PCB layout adjustment but maintains electrical compatibility.

Q: What is the difference between 14-SSOP and 14-TSSOP packages? A: Both are 14-pin surface mount packages with identical pin configurations. The 14-SSOP has a 0.209" (5.30mm) body width, while the 14-TSSOP has a 0.173" (4.40mm) body width. The TSSOP variant is more compact and requires updated PCB footprints.

Q: Why is the MM74HC164MTCX limited to -40°C to 85°C? A: The Fairchild part specification defines an 85°C maximum operating temperature, compared to 125°C for the Nexperia and Texas Instruments variants. Applications requiring operation above 85°C must use SN74HC164PWR or SN74HC164PW.

Q: Are all substitute parts ROHS3 compliant? A: The Texas Instruments variants (SN74HC164PW, SN74HC164PWR, SN74HC164PWT) are ROHS3 compliant. The Fairchild MM74HC164MTCX does not specify ROHS status in the provided data.

Q: What packaging options are available for substitute parts? A: SN74HC164PWR is supplied in Cut Tape and Digi-Reel formats. SN74HC164PW is supplied in Tube packaging. SN74HC164PWT is supplied in Tape & Reel format. MM74HC164MTCX is supplied in Bulk packaging.

Q: Do all substitutes maintain the same moisture sensitivity level? A: The Texas Instruments parts (SN74HC164PW, SN74HC164PWR, SN74HC164PWT) specify MSL Level 1 (Unlimited), matching the original 74HC164DB,112. The Fairchild part does not specify MSL rating.