74F112SCX Equivalent & Substitute Parts

Part Overview

The 74F112SCX 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, preset and reset capabilities, and negative edge triggering. The 74F112SCX is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

74F112SCX

onsemiIn Stock: 371274F112SCX 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 74F112SCX are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters:

• Type: JK Type flip-flop architecture
• Number of Elements: 2
• Number of Bits per Element: 1
• Output Type: Complementary outputs
• Trigger Type: Negative edge triggering
• Function: Set (Preset) and Reset capability
• Voltage Supply Range: 4.5V ~ 5.5V
• Max Propagation Delay @ 5V, 50pF: 6.5 ns
• Current - Output High, Low: 1 mA, 20 mA
• Current - Quiescent (Iq): 19 mA
• Operating Temperature: 0°C ~ 70°C

Mechanical Parameters:

• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical electrical specifications and mechanical compatibility with the 74F112SCX, ensuring direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

SN74F112D (Texas Instruments): This part carries Last Time Buy status, indicating limited future availability. It is ROHS3 compliant and supplied in tube packaging. Selection of this part should account for its transitional product status and potential procurement constraints.

SN74F112DR (Texas Instruments): This part maintains Active product status with full ROHS3 compliance and is supplied in Tape & Reel format. The active status ensures ongoing availability and manufacturing support. This part is the preferred selection for new designs and ongoing production requirements.

Both Texas Instruments substitutes provide superior clock frequency performance (130 MHz versus 105 MHz) while maintaining all other electrical and mechanical specifications identical to the 74F112SCX.

Frequently Asked Questions (FAQ)

Q: Can SN74F112D and SN74F112DR be used interchangeably with 74F112SCX?

A: Yes. Both parts maintain identical electrical specifications, propagation delay, output characteristics, and 16-SOIC package dimensions. The primary difference is packaging format (tube versus tape & reel) and product lifecycle status.

Q: What is the difference between SN74F112D and SN74F112DR?

A: Both parts are functionally identical. SN74F112D is supplied in tube packaging and carries Last Time Buy status. SN74F112DR is supplied in Tape & Reel format and maintains Active product status. For production applications, SN74F112DR is recommended due to its active lifecycle and standard reel packaging.

Q: Are there any performance differences between the 74F112SCX and its substitutes?

A: The Texas Instruments substitutes (SN74F112D and SN74F112DR) specify a maximum clock frequency of 130 MHz compared to 105 MHz for the 74F112SCX. All other electrical parameters, including propagation delay, output current, supply voltage, and operating temperature range, remain identical.

Q: Is the 16-SOIC package compatible across all three parts?

A: Yes. All three parts use the identical 16-SOIC (0.154", 3.90mm Width) surface mount package with the same pin configuration and mechanical dimensions, ensuring direct PCB compatibility.

Q: What is the significance of ROHS3 compliance on the substitute parts?

A: ROHS3 compliance indicates conformance to Restriction of Hazardous Substances regulations. The Texas Instruments substitutes meet this environmental standard, while the onsemi 74F112SCX does not specify this compliance status.

Q: Should I prioritize SN74F112DR over SN74F112D for new designs?

A: Yes. SN74F112DR maintains Active product status, ensuring long-term availability and manufacturing support. SN74F112D is Last Time Buy, indicating limited future procurement windows and eventual discontinuation.