74HC112DB,118 Equivalent & Substitute Parts

Part Overview

The 74HC112DB,118 is a dual JK-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc., housed in a 16-SSOP package. This component functions as a Set/Preset and Reset element with complementary outputs, operating across a 2V to 6V supply voltage range. The part is currently listed as obsolete, making identification of functionally equivalent substitutes essential for ongoing design support and production continuity. Substitute parts must maintain identical functional specifications, electrical performance, and compliance certifications while accommodating different packaging formats.

Substiute Parts

74HC112DB,118

Nexperia USA Inc.In Stock: 112874HC112DB,118 Datasheet

Current PartRFQ

74HC112PW,118

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

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CD74HC112PW

Texas InstrumentsIn Stock: 1917CD74HC112PW Datasheet

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CD74HC112PWR

Texas InstrumentsIn Stock: 2686CD74HC112PWR Datasheet

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CD74HC112PWT

Texas InstrumentsIn Stock: 1706CD74HC112PWT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC112DB,118 is determined by strict adherence to the following electrical and mechanical parameters:

Core Functional Requirements:

• Base product number: 74HC112
• JK-type flip-flop architecture with dual elements
• Complementary output configuration
• Negative edge trigger mechanism
• Set/Preset and Reset functionality

Electrical Compatibility Criteria:

• Propagation delay: 30ns @ 6V, 50pF (maximum)
• Supply voltage range: 2V ~ 6V
• Output current: 5.2mA (high and low)
• Quiescent current: 4 µA
• Operating temperature range: minimum -40°C (Nexperia standard) or -55°C (extended range)

Mechanical Compatibility:

• Surface mount technology
• 16-pin package configuration (SSOP or TSSOP variants)
• Pin-to-pin compatibility within package family

Compliance Requirements:

• ROHS3 compliance
• MSL Level 1 rating
• REACH unaffected status

Substitute parts meeting all electrical specifications and compliance requirements are considered functionally equivalent regardless of packaging format (SSOP vs. TSSOP) or manufacturer, provided the base product number remains 74HC112.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 74HC112PW,118 (Nexperia)

The 74HC112PW,118 is the direct functional equivalent from the same manufacturer. It maintains identical electrical specifications, clock frequency (71 MHz), and input capacitance (4.6 pF) as the original 74HC112DB,118. The primary difference is packaging format: TSSOP (0.173", 4.40mm width) versus SSOP (0.209", 5.30mm width). This part is currently active in production and available in Tape & Reel format. Selection of this substitute requires PCB layout modification to accommodate the narrower TSSOP footprint.

Secondary Recommendation: CD74HC112PWR (Texas Instruments)

The CD74HC112PWR is an active production substitute from Texas Instruments. It meets all electrical performance requirements with identical propagation delay (30ns @ 6V, 50pF) and output current specifications. The extended operating temperature range (-55°C ~ 125°C) provides additional margin for demanding applications. Input capacitance is specified at 10 pF versus 4.6 pF for Nexperia variants; this parameter difference does not affect functional compatibility within the 74HC112 family. This part is supplied in Tape & Reel format and requires TSSOP footprint accommodation.

Alternative Consideration: CD74HC112PW (Texas Instruments)

The CD74HC112PW is functionally equivalent but listed as discontinued at DiGi Electronics. Inventory availability is limited (1863 pcs). This part is supplied in Tube packaging rather than Tape & Reel, which may impact production automation compatibility. Selection should be based on specific supply chain requirements and packaging format constraints.

Not Recommended: CD74HC112PWT (Texas Instruments)

The CD74HC112PWT is discontinued at DiGi Electronics with limited inventory (1600 pcs). While electrically equivalent, the discontinued status and reduced availability make this an unsuitable primary selection for new designs or ongoing production.

All recommended substitutes maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory and environmental compliance equivalence with the original part.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74HC112DB,118 with 74HC112PW,118 on my existing PCB?

A: No. While electrically equivalent, these parts use different package types: SSOP (0.209", 5.30mm width) versus TSSOP (0.173", 4.40mm width). PCB footprint modification is required. Pin count and function remain identical, but physical dimensions differ. Verify your PCB layout can accommodate the narrower TSSOP footprint before substitution.

Q: What is the difference between Nexperia and Texas Instruments versions?

A: Both manufacturers produce functionally equivalent 74HC112 devices meeting the same electrical specifications for propagation delay, output current, and supply voltage. Key differences are: Nexperia specifies 71 MHz clock frequency and 4.6 pF input capacitance; Texas Instruments specifies 60 MHz clock frequency and 10 pF input capacitance. Both meet the 30ns propagation delay requirement. Texas Instruments offers extended operating temperature range (-55°C vs. -40°C minimum). These differences do not affect functional compatibility within standard logic circuit applications.

Q: Is the 74HC112PW,118 a direct pin-for-pin replacement?

A: Yes, the 74HC112PW,118 is pin-for-pin compatible with the 74HC112DB,118. Both use 16-pin surface mount packages with identical pin assignments. The difference is package outline: SSOP versus TSSOP. PCB footprint modification is required, but no circuit redesign is necessary.

Q: Why is the 74HC112DB,118 listed as obsolete?

A: The SSOP package variant has been superseded by the TSSOP variant (74HC112PW,118), which offers improved thermal characteristics and reduced board space requirements. The base product (74HC112) remains in active production in alternative package formats.

Q: Can I use CD74HC112PWR in applications requiring the full -40°C to 125°C temperature range?

A: Yes. The CD74HC112PWR operates across -55°C to 125°C, which exceeds the -40°C to 125°C requirement of the original part. The extended lower temperature limit provides additional operational margin and is fully compatible with applications specified for -40°C minimum operation.

Q: What packaging formats are available for 74HC112 substitutes?

A: Nexperia supplies the 74HC112PW,118 in Tape & Reel (TR) format. Texas Instruments supplies CD74HC112PWR in Tape & Reel format and CD74HC112PW in Tube format. Tape & Reel packaging is standard for automated assembly; Tube packaging is suitable for manual or lower-volume assembly processes. Verify your production equipment compatibility before selecting packaging format.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed (74HC112PW,118, CD74HC112PW, CD74HC112PWR, CD74HC112PWT) are ROHS3 compliant with MSL Level 1 rating and REACH unaffected status, maintaining full regulatory equivalence with the original 74HC112DB,118.