CD74HCT164MT Equivalent & Substitute Parts

Part Overview

The CD74HCT164MT is an 8-bit serial-in parallel-out shift register manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The CD74HCT164MT operates as a logic shift register with push-pull output configuration, converting serial input data to parallel output format across 8 bits.

Substiute Parts

CD74HCT164MT

Texas InstrumentsIn Stock: 1639CD74HCT164MT Datasheet

Current PartRFQ

CD74ACT164M96

Texas InstrumentsIn Stock: 3665CD74ACT164M96 Datasheet

Parametric EquivalentRFQ

CD74HCT164M96

Texas InstrumentsIn Stock: 10205CD74HCT164M96 Datasheet

Parametric EquivalentRFQ

74HCT164D,653

NXP SemiconductorsIn Stock: 3597674HCT164D,653 Datasheet

MFR RecommendedRFQ

74HCT164S14-13

Diodes IncorporatedIn Stock: 2758874HCT164S14-13 Datasheet

MFR RecommendedRFQ

74HCT164T14-13

Diodes IncorporatedIn Stock: 95774HCT164T14-13 Datasheet

MFR RecommendedRFQ

MM74HCT164M

onsemiIn Stock: 5055MM74HCT164M Datasheet

MFR RecommendedRFQ

MM74HCT164MX

onsemiIn Stock: 3548MM74HCT164MX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD74HCT164MT is determined by the following critical parameters: logic type (shift register), bit configuration (8-bit), output type (push-pull), supply voltage range (4.5V ~ 5.5V), package type (14-SOIC), and mounting type (surface mount). All substitute parts listed maintain these core electrical and mechanical specifications, ensuring functional and physical compatibility. Substitutes are grouped by manufacturer and product status to facilitate selection based on availability and lifecycle requirements.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement in existing 14-SOIC footprints, CD74HCT164M96 from Texas Instruments is the primary equivalent, maintaining identical package geometry and operating temperature range while offering active product status. MM74HCT164MX from onsemi provides an alternative with the same package and electrical specifications, though with a narrower operating temperature range (-40°C ~ 85°C versus -55°C ~ 125°C).

For applications requiring the same series logic family with active availability, 74HCT164S14-13 from Diodes Incorporated is functionally equivalent in 14-SOIC packaging. The 74HCT164T14-13 variant from Diodes Incorporated offers the same electrical performance in a 14-TSSOP package for space-constrained layouts.

CD74ACT164M96 from Texas Instruments operates within the same voltage and package specifications but uses the 74ACT logic family instead of 74HCT. This substitution is valid where ACT-series logic characteristics are acceptable in the circuit design.

All substitute parts maintain ROHS3 compliance, moisture sensitivity level 1, and REACH unaffected status, ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can CD74HCT164M96 directly replace CD74HCT164MT? A: Yes. Both parts share identical electrical specifications (4.5V ~ 5.5V supply, 8-bit shift register, push-pull output) and package type (14-SOIC). The primary difference is packaging format (cut tape versus tape & reel) and product status (active versus discontinued).

Q: What is the difference between 74HCT and 74ACT logic families? A: Both families operate within the same 4.5V ~ 5.5V supply voltage range and share identical pin configurations for the 8-bit shift register function. The 74ACT family uses advanced CMOS technology with different propagation delay and power consumption characteristics. Substitution between families is valid where circuit timing and power requirements permit.

Q: Why does 74HCT164T14-13 have a different package designation? A: The 74HCT164T14-13 uses a 14-TSSOP package (0.173", 4.40mm width) instead of the standard 14-SOIC (0.154", 3.90mm width). This package is physically incompatible with 14-SOIC footprints and requires PCB redesign. Select this part only when TSSOP packaging is required for space optimization.

Q: Are there temperature range limitations when substituting? A: The original CD74HCT164MT operates from -55°C ~ 125°C. Substitutes from Diodes Incorporated (74HCT164S14-13, 74HCT164T14-13) and onsemi (MM74HCT164M, MM74HCT164MX) operate from -40°C ~ 125°C or -40°C ~ 85°C. Verify that the substitute's operating temperature range meets application requirements, particularly for extreme temperature environments.

Q: What is the significance of RoHS3 compliance? A: All listed substitutes maintain ROHS3 compliance, confirming restriction of hazardous substances in accordance with EU directive requirements. This ensures compatibility with modern supply chain and environmental regulations.

Q: Can MM74HCT164M be used despite obsolete status? A: MM74HCT164M is listed as obsolete but remains in inventory. Use only when existing stock is available and long-term supply is not required. For new designs or production requiring sustained availability, select active-status alternatives such as MM74HCT164MX, CD74HCT164M96, or 74HCT164S14-13.