CD74HC112PWT Equivalent & Substitute Parts

Part Overview

The CD74HC112PWT is a dual JK-type flip-flop logic integrated circuit manufactured by Texas Instruments in a 16-TSSOP surface mount package. This device provides two independent 1-bit JK flip-flops with complementary outputs, negative edge triggering, and set/reset functionality. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain functional equivalence while offering active product status and improved availability.

Substiute Parts

CD74HC112PWT

Texas InstrumentsIn Stock: 1706CD74HC112PWT Datasheet

Current PartRFQ

CD74HC112PWR

Texas InstrumentsIn Stock: 2686CD74HC112PWR Datasheet

Parametric EquivalentRFQ

74HC112PW,118

Nexperia USA Inc.In Stock: 220274HC112PW,118 Datasheet

MFR RecommendedRFQ

MC74HC112ADTG

onsemiIn Stock: 3040MC74HC112ADTG Datasheet

MFR RecommendedRFQ

MC74HC112ADTR2G

onsemiIn Stock: 3240MC74HC112ADTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC112PWT is determined by strict equivalence across the following critical parameters:

Functional Parameters: Logic type (JK flip-flop), number of elements (2), bits per element (1), output type (complementary), trigger type (negative edge), and function (set/reset capability).

Electrical Parameters: Supply voltage range (2V–6V), output current (5.2 mA), quiescent current (4 µA), and input capacitance (10 pF).

Physical Parameters: Package type (16-TSSOP with 0.173" width, 4.40mm), mounting type (surface mount), and pin configuration.

Compliance Parameters: RoHS3 compliance, MSL 1 rating, and REACH unaffected status.

Substitute parts are grouped into two categories: parametric equivalents (identical specifications) and manufacturer-recommended alternatives (functionally equivalent with minor specification variations within acceptable tolerances).

Parameter Comparison

Engineering Selection Recommendations

CD74HC112PWR (Texas Instruments): Direct parametric equivalent with identical electrical specifications and active product status. Recommended as the primary substitute for discontinued CD74HC112PWT applications requiring Tape & Reel packaging and Texas Instruments sourcing continuity.

74HC112PW,118 (Nexperia USA Inc.): Functionally equivalent with higher clock frequency (71 MHz) and lower input capacitance (4.6 pF). Operating temperature range limited to -40°C to 125°C. Suitable for applications not requiring the full -55°C lower temperature specification. Active product status with Tape & Reel availability.

MC74HC112ADTR2G (onsemi): Functionally equivalent with faster propagation delay (21 ns) and Tape & Reel packaging. Clock frequency rated at 35 MHz. Maintains full -55°C to 125°C operating range. Active product status with highest inventory availability (3201 pcs).

MC74HC112ADTG (onsemi): Functionally equivalent with faster propagation delay (21 ns) and full operating temperature range. Supplied in Tube packaging rather than Tape & Reel. Suitable for applications where packaging format is not a constraint. Active product status.

All substitutes maintain RoHS3 compliance, MSL 1 rating, and REACH unaffected status, ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can CD74HC112PWR be used as a direct replacement for CD74HC112PWT?

A: Yes. CD74HC112PWR is a parametric equivalent with identical electrical specifications, supply voltage range, output current, propagation delay, and operating temperature range. Both are manufactured by Texas Instruments and packaged in 16-TSSOP format. The primary difference is product status: CD74HC112PWR is active while CD74HC112PWT is discontinued.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel (TR) packaging is used for automated assembly processes and high-volume production. Tube packaging is used for manual assembly or lower-volume applications. MC74HC112ADTG is supplied in Tube format, while MC74HC112ADTR2G uses Tape & Reel. Both contain the same die and are functionally identical.

Q: Are there performance differences between the substitute parts?

A: Yes. MC74HC112ADTR2G and MC74HC112ADTG (onsemi) offer faster propagation delay (21 ns versus 30 ns) and lower clock frequency (35 MHz versus 60 MHz). 74HC112PW,118 (Nexperia) offers higher clock frequency (71 MHz) and lower input capacitance (4.6 pF versus 10 pF). These variations remain within the 74HC logic family specification envelope and do not affect functional compatibility in standard applications.

Q: Does the operating temperature range affect substitution?

A: 74HC112PW,118 has a limited operating temperature range of -40°C to 125°C compared to -55°C to 125°C for other substitutes. Applications requiring operation below -40°C must use CD74HC112PWR, MC74HC112ADTR2G, or MC74HC112ADTG.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating and REACH unaffected status, ensuring full regulatory compatibility.

Q: Which substitute offers the best availability?

A: MC74HC112ADTR2G (onsemi) has the highest inventory availability at 3201 pcs, followed by MC74HC112ADTG at 3014 pcs. CD74HC112PWR (Texas Instruments) has 2600 pcs available.