CD74HC75PW Equivalent & Substitute Parts

Part Overview

The CD74HC75PW is a D-Type Transparent Latch IC manufactured by Texas Instruments, featuring dual 2-bit transparent latch functionality in a 16-TSSOP surface mount package. This component operates across a 2V to 6V supply voltage range with 10ns propagation delay and differential output configuration. The part is currently in Last Time Buy status, making identification of active equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

CD74HC75PW

Texas InstrumentsIn Stock: 1783CD74HC75PW Datasheet

Current PartRFQ

CD74HC75PWR

Texas InstrumentsIn Stock: 2241CD74HC75PWR Datasheet

MFR RecommendedRFQ

74HC75PW,118

NXP SemiconductorsIn Stock: 732174HC75PW,118 Datasheet

MFR RecommendedRFQ

74HCT14D,653

Nexperia USA Inc.In Stock: 298574HCT14D,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC75PW is determined by the following critical parameters:

• Logic Function: D-Type Transparent Latch with 2:2 circuit configuration and differential output
• Electrical Compatibility: Supply voltage range 2V ~ 6V, propagation delay 10ns, output current 5.2mA
• Package Compatibility: 16-TSSOP surface mount package with identical pinout and mechanical dimensions
• Thermal Range: Operating temperature -55°C ~ 125°C
• Compliance: ROHS3 compliance and MSL Level 1 rating

The identified substitutes maintain functional equivalence through matching logic topology, electrical specifications, and package form factor. Packaging format differences (Tube, Tape & Reel, Bulk, Cut Tape) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CD74HC75PWR

The CD74HC75PWR is the manufacturer-recommended direct substitute, offering identical electrical specifications, logic function, and package configuration. This part maintains Active product status with higher inventory availability (2200 pcs) compared to the main part. The only difference is packaging format (Tape & Reel versus Tube), which does not affect circuit performance or mechanical compatibility. This substitute is recommended for new procurement and design continuation.

Secondary Substitute: 74HC75PW,118

The 74HC75PW,118 from NXP Semiconductors provides functional equivalence as a 74HC75 base product variant. This part maintains Active status with substantial inventory (7264 pcs). However, limited parameter documentation in the provided data requires verification of electrical specifications prior to implementation in critical applications.

Non-Equivalent: 74HCT14D,653

The 74HCT14D,653 is functionally distinct from the CD74HC75PW. This part implements Inverter logic with Schmitt Trigger configuration rather than D-Type Transparent Latch topology. The different logic function, reduced output current (4mA versus 5.2mA), narrower supply voltage range (4.5V ~ 5.5V versus 2V ~ 6V), and different package form (14-SOIC versus 16-TSSOP) make this part unsuitable as a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can CD74HC75PWR replace CD74HC75PW in existing designs?

A: Yes. The CD74HC75PWR is electrically and mechanically identical to the CD74HC75PW. Both parts feature the same 16-TSSOP package, supply voltage range (2V ~ 6V), propagation delay (10ns), and output current specifications (5.2mA). The packaging format difference (Tape & Reel versus Tube) does not affect circuit performance.

Q: Why is 74HCT14D,653 listed as a substitute if it is not compatible?

A: The 74HCT14D,653 was included in the original substitute list provided in the input data. However, this part implements fundamentally different logic (Inverter with Schmitt Trigger versus D-Type Transparent Latch) and is not functionally equivalent. This part should not be used as a replacement for the CD74HC75PW.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: (1) matching logic function (D-Type Transparent Latch), (2) identical circuit configuration (2:2), (3) compatible supply voltage range (2V ~ 6V), (4) matching propagation delay (10ns), (5) equivalent output current (5.2mA), (6) identical package form (16-TSSOP), and (7) matching thermal operating range (-55°C ~ 125°C).

Q: Does packaging format affect electrical compatibility?

A: No. Packaging format differences (Tube, Tape & Reel, Bulk, Cut Tape) are logistics and handling considerations only. They do not affect electrical performance, pinout configuration, or mechanical fit in PCB assemblies.

Q: What is the significance of the Last Time Buy status?

A: Last Time Buy status indicates that the CD74HC75PW will no longer be manufactured after a specified date. This makes identification of active equivalent parts essential for long-term design support and procurement continuity. The CD74HC75PWR maintains Active status and is the recommended transition path.