SN74LS112ADRE4 Equivalent & Substitute Parts

Part Overview

The SN74LS112ADRE4 is a dual JK-type flip-flop logic integrated circuit manufactured by Texas Instruments in the 74LS series. This component functions as a 2-element, 1-bit JK flip-flop with complementary outputs, negative edge triggering, and Set/Reset capability. The device is discontinued at DiGi Electronics, making substitute parts necessary for ongoing production and maintenance applications. Alternative equivalent parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Substiute Parts

SN74LS112ADRE4

Texas InstrumentsIn Stock: 678SN74LS112ADRE4 Datasheet

Current PartRFQ

SN74LS112ADR

Texas InstrumentsIn Stock: 3606SN74LS112ADR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS112ADRE4 is determined by strict equivalence across the following critical parameters:

• Logic Function: Dual JK-type flip-flop with 2 elements, 1 bit per element
• Electrical Characteristics: 45 MHz clock frequency, 20ns maximum propagation delay, negative edge triggering, complementary output configuration
• Power Supply: 4.75V ~ 5.25V operating voltage range
• Output Specifications: 400µA high output current, 8mA low output current, 6mA quiescent current
• Operating Temperature Range: 0°C ~ 70°C
• Package Specification: 16-SOIC surface mount package (0.154", 3.90mm width)
• Compliance: ROHS3 compliant, REACH unaffected, MSL Level 1

The SN74LS112ADR meets all substitution criteria as a direct equivalent part within the same 74LS series, maintaining identical functional and electrical specifications while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS112ADR is a direct functional and electrical equivalent to the SN74LS112ADRE4. Both parts are manufactured by Texas Instruments within the 74LS logic series and maintain identical specifications across all critical parameters: logic function, clock frequency, propagation delay, output characteristics, supply voltage, operating temperature range, and package configuration.

The primary distinction is product status: the SN74LS112ADRE4 is discontinued at DiGi Electronics, while the SN74LS112ADR maintains active status with significantly higher inventory availability (3519 units versus 664 units). Both parts carry identical compliance certifications: ROHS3 compliant, REACH unaffected, and MSL Level 1.

For new designs and ongoing production requiring the 74LS dual JK-type flip-flop function, the SN74LS112ADR is the appropriate selection based on active product status and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS112ADR be used as a direct replacement for the SN74LS112ADRE4?

A: Yes. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications, logic function, clock frequency, propagation delay, output characteristics, supply voltage range, operating temperature range, and 16-SOIC package configuration. No circuit modifications are required.

Q: What is the difference between SN74LS112ADRE4 and SN74LS112ADR?

A: The parts are functionally and electrically identical. The primary difference is product status: SN74LS112ADRE4 is discontinued at DiGi Electronics, while SN74LS112ADR is active with higher inventory availability.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both parts use the 16-SOIC surface mount package with identical dimensions (0.154" width, 3.90mm width). PCB footprints are interchangeable.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited moisture sensitivity level).

Q: What is the operating temperature range for these parts?

A: Both parts operate across 0°C to 70°C (TA).

Q: What supply voltage is required for these flip-flops?

A: Both parts require a supply voltage of 4.75V to 5.25V.