SN74F112D Equivalent & Substitute Parts

Part Overview

The SN74F112D is a dual JK-type flip-flop logic integrated circuit manufactured by Texas Instruments in a 16-SOIC surface mount package. This device functions as a 2-element, 1-bit per element flip-flop with complementary outputs, preset and reset capabilities, and negative edge triggering. The SN74F112D is classified as Last Time Buy, indicating limited availability and the necessity to identify functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

SN74F112D

Texas InstrumentsIn Stock: 2037SN74F112D Datasheet

Current PartRFQ

SN74F112DR

Texas InstrumentsIn Stock: 3597SN74F112DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F112D is determined by strict equivalence across the following critical parameters:

• Functional Type: JK-type flip-flop with 2 elements, 1 bit per element
• Output Configuration: Complementary outputs with preset and reset functions
• Trigger Mechanism: Negative edge triggering
• Electrical Performance: Clock frequency of 130 MHz, propagation delay of 6.5 ns @ 5V/50pF
• Voltage Supply: 4.5V ~ 5.5V operating range
• Output Drive Capability: 1 mA high, 20 mA low
• Package Format: 16-SOIC surface mount package (0.154", 3.90mm width)
• Compliance: ROHS3 compliant, MSL Level 1

The SN74F112DR qualifies as a direct substitute based on identical electrical specifications, functional characteristics, and package format. The primary distinction is packaging configuration: the SN74F112D is supplied in Tube packaging, while the SN74F112DR is supplied in Tape & Reel (TR) format.

Parameter Comparison

Engineering Selection Recommendations

The SN74F112DR is the direct equivalent substitute for the SN74F112D. Both parts are manufactured by Texas Instruments with identical electrical specifications, functional characteristics, and package dimensions. The SN74F112DR maintains Active product status, ensuring continued availability and supply chain stability compared to the Last Time Buy status of the SN74F112D.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying environmental and moisture sensitivity requirements. The substitution is electrically and mechanically transparent at the circuit level. The distinction between Tube and Tape & Reel packaging is a supply chain and manufacturing consideration rather than a functional or electrical parameter.

Frequently Asked Questions (FAQ)

Q: Can the SN74F112DR be used as a direct replacement for the SN74F112D in existing designs?

A: Yes. The SN74F112DR is electrically and functionally identical to the SN74F112D. Both devices feature the same JK-type flip-flop configuration, 130 MHz clock frequency, 6.5 ns propagation delay, voltage supply range, output drive capability, and 16-SOIC package dimensions. Pin-for-pin compatibility is maintained.

Q: What is the difference between the SN74F112D and SN74F112DR?

A: The primary difference is packaging format. The SN74F112D is supplied in Tube packaging, while the SN74F112DR is supplied in Tape & Reel (TR) format. This distinction affects procurement, handling, and automated assembly processes but does not impact electrical performance or circuit functionality.

Q: Why is the SN74F112D classified as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued or is phasing out production of this part number. The SN74F112DR, with Active product status, represents the recommended path for ongoing production and new designs requiring this flip-flop functionality.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SN74F112D and SN74F112DR maintain identical ROHS3 compliance and MSL Level 1 ratings. Environmental and regulatory certifications are equivalent.

Q: What are the critical parameters for substitution of the SN74F112 series?

A: Substitution requires equivalence in the following parameters: JK-type flip-flop configuration with 2 elements and 1 bit per element, complementary outputs, negative edge triggering, 130 MHz clock frequency, 6.5 ns propagation delay at 5V/50pF, 4.5V ~ 5.5V supply voltage range, 1 mA/20 mA output drive capability, and 16-SOIC surface mount package format.

Q: Can the SN74F112D be used in high-volume production?

A: The SN74F112D is classified as Last Time Buy with limited inventory. For high-volume production requiring long-term supply assurance, the SN74F112DR with Active status is the appropriate selection.