74F112SC Equivalent & Substitute Parts

Part Overview

The 74F112SC is a dual JK-type flip-flop logic integrated circuit manufactured by onsemi, housed in a 16-SOIC surface mount package. This component functions as a 2-element, 1-bit per element flip-flop with complementary outputs, triggered on negative edge clock transitions. The 74F112SC is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74F112SC

onsemiIn Stock: 99374F112SC Datasheet

Current PartRFQ

SN74F112D

Texas InstrumentsIn Stock: 2037SN74F112D Datasheet

DirectRFQ

SN74F112DR

Texas InstrumentsIn Stock: 3597SN74F112DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74F112SC are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Compatibility Criteria:

• Identical logic function: dual JK-type flip-flop, 2 elements, 1 bit per element
• Identical output type: complementary outputs
• Identical trigger mechanism: negative edge triggered
• Identical package: 16-SOIC (0.154", 3.90mm Width)
• Identical supply voltage range: 4.5V ~ 5.5V
• Identical output current specifications: 1mA high, 20mA low
• Identical quiescent current: 19 mA
• Identical operating temperature range: 0°C ~ 70°C
• Identical propagation delay: 6.5ns @ 5V, 50pF

Mechanical Compatibility Criteria:

• Surface mount package type
• 16-pin SOIC footprint and pinout alignment

The substitute parts SN74F112D and SN74F112DR meet all electrical and mechanical compatibility requirements. Both are manufactured by Texas Instruments and share the identical 74F112 base product number, ensuring pin-for-pin and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

SN74F112D (Texas Instruments, Last Time Buy): This part is functionally equivalent to the 74F112SC with identical electrical and mechanical specifications. The SN74F112D is supplied in tube packaging and carries Last Time Buy status, indicating limited future availability. This option is suitable for applications requiring standard tube quantities where procurement windows remain open.

SN74F112DR (Texas Instruments, Active): This part is functionally equivalent to the 74F112SC with identical electrical and mechanical specifications. The SN74F112DR is supplied in Tape & Reel format and maintains Active product status, ensuring long-term availability and supply chain stability. Both Texas Instruments substitutes feature ROHS3 compliance, meeting modern regulatory requirements. The SN74F112DR is the preferred selection for new designs and ongoing production due to its active status and standard reel packaging format.

Frequently Asked Questions (FAQ)

Q: Can SN74F112D and SN74F112DR be used interchangeably with 74F112SC?

A: Yes. Both Texas Instruments parts are pin-for-pin and functionally equivalent to the 74F112SC. They share identical electrical characteristics, package dimensions, and pinout. The only differences are manufacturer, product status, and packaging format (tube versus tape & reel).

Q: What is the difference between SN74F112D and SN74F112DR?

A: Both parts are electrically identical. The primary difference is packaging: SN74F112D is supplied in tube packaging and carries Last Time Buy status, while SN74F112DR is supplied in Tape & Reel format and maintains Active product status. For high-volume production, SN74F112DR is recommended due to its active status and standard reel format.

Q: Why does the 74F112SC show a lower clock frequency (105 MHz) compared to the substitutes (130 MHz)?

A: The clock frequency specification represents the maximum operating frequency. The substitute parts have a higher maximum rating, but both operate within the same voltage and temperature ranges with identical propagation delays. The 74F112SC can operate at frequencies up to 105 MHz, while the substitutes are rated to 130 MHz. This does not affect compatibility in applications operating within the 74F112SC's frequency range.

Q: Are there any compliance or regulatory differences?

A: The Texas Instruments substitutes (SN74F112D and SN74F112DR) are ROHS3 compliant, meeting modern environmental regulations. All three parts are REACH unaffected and carry EAR99 ECCN classification. The MSL rating of 1 (Unlimited) is identical across all parts.

Q: What packaging considerations should I account for when switching from 74F112SC to SN74F112DR?

A: The 16-SOIC package dimensions and pinout are identical. SN74F112DR is supplied in Tape & Reel format, which is standard for automated assembly. If your assembly process uses tube-fed components, SN74F112D (tube packaging) may require process adjustment, though both parts use the same footprint and require no PCB layout changes.