CD74HCT174M Equivalent & Substitute Parts

Part Overview

The CD74HCT174M is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, designed for digital signal processing and sequential logic applications. This 1-element, 6-bit positive edge-triggered flip-flop operates at 25 MHz clock frequency with a 40ns maximum propagation delay. The part is currently in Last Time Buy status, making identification of functionally equivalent alternatives essential for design continuity and long-term component sourcing.

Substiute Parts

CD74HCT174M

Texas InstrumentsIn Stock: 5860CD74HCT174M Datasheet

Current PartRFQ

CD74HCT174M96

Texas InstrumentsIn Stock: 2711CD74HCT174M96 Datasheet

MFR RecommendedRFQ

74HCT174D,653

NXP SemiconductorsIn Stock: 984074HCT174D,653 Datasheet

MFR RecommendedRFQ

74HCT174D-Q100J

Nexperia USA Inc.In Stock: 106174HCT174D-Q100J Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HCT174M is determined by strict equivalence across the following critical parameters:

• Base product number (74HCT174 series)
• Package type (16-SOIC surface mount)
• Functional architecture (1-element, 6-bit D-Type flip-flop)
• Trigger mechanism (positive edge-triggered)
• Output configuration (non-inverted)
• Master reset function
• Supply voltage range (4.5V ~ 5.5V)
• Moisture sensitivity level (MSL 1)

Substitute parts must maintain identical or superior electrical performance within these constraints. Variations in clock frequency, propagation delay, quiescent current, and operating temperature range are permitted when the substitute part meets or exceeds the original specification.

Parameter Comparison

Engineering Selection Recommendations

CD74HCT174M96 (Texas Instruments) is the primary substitute for the CD74HCT174M. Both parts share identical electrical specifications, supply voltage range, and operating temperature limits. The CD74HCT174M96 maintains Active product status and ROHS3 compliance, providing continuity within the Texas Instruments product line. Packaging differs (Cut Tape & Digi-Reel® versus Tube), which may affect procurement and handling procedures but does not impact functional compatibility.

74HCT174D,653 (NXP Semiconductors) and 74HCT174D-Q100J (Nexperia USA Inc.) are functionally equivalent alternatives from different manufacturers. Both parts demonstrate superior performance characteristics: 69 MHz clock frequency (versus 25 MHz), 35ns propagation delay (versus 40ns), and reduced input capacitance (4.6 pF versus 10 pF). Both maintain the required 4.5V ~ 5.5V supply voltage and MSL 1 rating. The NXP part operates across -40°C ~ 125°C, while the Nexperia part includes automotive-grade qualification (AEC-Q100), suitable for applications requiring automotive compliance.

Selection should prioritize Active status parts (CD74HCT174M96, 74HCT174D,653, or 74HCT174D-Q100J) over the Last Time Buy CD74HCT174M to ensure long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can CD74HCT174M96 directly replace CD74HCT174M in existing designs?

A: Yes. Both parts are electrically identical with matching specifications across clock frequency, propagation delay, supply voltage, quiescent current, and operating temperature range. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube), which does not affect circuit performance.

Q: Are the NXP and Nexperia parts compatible with designs specified for the CD74HCT174M?

A: Yes. Both 74HCT174D,653 and 74HCT174D-Q100J meet or exceed the CD74HCT174M specifications. The NXP and Nexperia parts offer faster clock frequency (69 MHz versus 25 MHz), shorter propagation delay (35ns versus 40ns), and lower input capacitance (4.6 pF versus 10 pF). These improvements ensure compatibility with existing designs while providing performance headroom. Operating temperature range differs slightly (-40°C ~ 125°C versus -55°C ~ 125°C); verify application requirements if operation below -40°C is necessary.

Q: What is the significance of the 74HCT174D-Q100J automotive qualification?

A: The AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. This qualification is relevant only for applications requiring automotive-grade components. Standard industrial applications do not require this qualification.

Q: Does the 16-SOIC package remain consistent across all substitute parts?

A: Yes. All substitute parts use the 16-SOIC (0.154", 3.90mm Width) surface mount package, ensuring pin-compatible board-level integration without PCB redesign.

Q: Why do the NXP and Nexperia parts show lower input capacitance?

A: Input capacitance variation (4.6 pF versus 10 pF) reflects manufacturing process differences between semiconductor vendors. Both values are within acceptable ranges for 74HCT174 series logic devices and do not impact functional compatibility in standard applications.

Q: Is ROHS3 compliance maintained across all substitute options?

A: ROHS3 compliance is confirmed for CD74HCT174M96 and 74HCT174D-Q100J. The NXP part (74HCT174D,653) does not specify RoHS status in the provided data; verify compliance requirements with the supplier if regulatory certification is mandatory.