SN74F175D Equivalent & Substitute Parts

Part Overview

The SN74F175D is a Flip Flop 1 Element D-Type 4 Bit Positive Edge logic integrated circuit manufactured by Texas Instruments in the 74F series. This component functions as a master reset device with complementary output configuration, operating at a clock frequency of 140 MHz. The device is classified as Last Time Buy, indicating discontinued production with limited availability. Identifying equivalent substitute parts is essential for design continuity, long-term project support, and ensuring supply chain reliability when original inventory becomes depleted.

Substiute Parts

SN74F175D

Texas InstrumentsIn Stock: 2301SN74F175D Datasheet

Current PartRFQ

SN74F175DR

Texas InstrumentsIn Stock: 3728SN74F175DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74F175D is determined by strict equivalence across the following critical parameters:

Functional Parameters: Type (D-Type Flip Flop), Number of Elements (1), Number of Bits per Element (4), Trigger Type (Positive Edge), Output Type (Complementary), and Function (Master Reset) must remain identical.

Electrical Parameters: Clock Frequency (140 MHz), Voltage Supply Range (4.5V ~ 5.5V), Current Output specifications (1mA High, 20mA Low), and Quiescent Current (34 mA) must be maintained.

Physical Parameters: Package configuration (16-SOIC with 0.154" / 3.90mm Width) and Mounting Type (Surface Mount) must match exactly.

Compliance Parameters: RoHS3 Compliance and MSL Level 1 status must be preserved.

The SN74F175DR qualifies as a direct substitute based on complete alignment with all functional, electrical, physical, and compliance parameters. The primary distinction is packaging format: SN74F175D is supplied in Tube packaging with Last Time Buy status, while SN74F175DR is supplied in Tape & Reel format with Active product status.

Parameter Comparison

Engineering Selection Recommendations

The SN74F175DR is a direct functional and electrical equivalent to the SN74F175D. Both parts maintain identical specifications across all critical parameters: logic function, electrical performance, operating conditions, and compliance certifications. The SN74F175D carries Last Time Buy status, indicating production discontinuation. The SN74F175DR maintains Active product status with ongoing availability.

Selection between these parts should be based on supply chain requirements and packaging format compatibility. The SN74F175D in Tube packaging is suitable for lower-volume applications or manual assembly processes. The SN74F175DR in Tape & Reel format is optimized for automated assembly and high-volume production environments. Both parts satisfy ROHS3 compliance and MSL Level 1 requirements, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can SN74F175DR be used as a direct replacement for SN74F175D in existing designs?

A: Yes. The SN74F175DR is electrically and functionally identical to the SN74F175D. All logic specifications, electrical parameters, and operating characteristics are equivalent. The primary difference is packaging format: Tube versus Tape & Reel. PCB layout and circuit design require no modification.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging supplies individual components in a plastic tube, suitable for manual handling and lower-volume assembly. Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for automated pick-and-place assembly equipment. Both formats contain identical components with identical electrical specifications.

Q: Why is the SN74F175D marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. Existing inventory may be available from authorized distributors, but future availability is not guaranteed. The SN74F175DR, with Active status, represents the current production equivalent and is recommended for new designs and long-term supply continuity.

Q: Are there any performance differences between SN74F175D and SN74F175DR?

A: No. Both parts are manufactured to identical specifications. Clock frequency (140 MHz), propagation delay characteristics, output current ratings, supply voltage range, and all other electrical parameters are equivalent. Performance in circuit operation is identical.

Q: What compliance certifications apply to both parts?

A: Both SN74F175D and SN74F175DR are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Both are REACH Unaffected and classified under ECCN EAR99. These certifications ensure compatibility with standard manufacturing processes and regulatory requirements.

Q: Can these parts be used interchangeably in automated assembly?

A: Yes, with equipment configuration adjustment. The SN74F175DR in Tape & Reel format is directly compatible with standard automated pick-and-place assembly systems. The SN74F175D in Tube packaging requires manual feeding or tube-to-tape conversion. Once placed on the PCB, both parts perform identically.