74F574SCX Equivalent & Substitute Parts

Part Overview

The 74F574SCX is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. This component operates at a clock frequency of 100 MHz with a maximum propagation delay of 8.5ns at 5V with 50pF load. The 74F574SCX is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

74F574SCX

onsemiIn Stock: 429774F574SCX Datasheet

Current PartRFQ

SN74F574DW

Texas InstrumentsIn Stock: 1301SN74F574DW Datasheet

DirectRFQ

SN74F574DWR

Texas InstrumentsIn Stock: 4204SN74F574DWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74F574SCX are determined by strict equivalence across the following critical parameters:

• Functional Type: D-Type flip-flop with 1 element, 8-bit configuration
• Output Configuration: Tri-state, non-inverted output
• Electrical Performance: 100 MHz clock frequency, 8.5ns maximum propagation delay at 5V with 50pF load
• Trigger Mechanism: Positive edge triggering
• Output Drive Capability: 3mA high, 24mA low
• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: 0°C to 70°C
• Package Format: 20-SOIC (0.295", 7.50mm Width) surface mount
• Series Classification: 74F logic family

The substitute parts listed below maintain identical electrical and mechanical specifications, differing only in manufacturer, product status, and packaging configuration (tube versus tape & reel).

Parameter Comparison

Engineering Selection Recommendations

SN74F574DWR (Texas Instruments, Tape & Reel) is the primary substitute for the 74F574SCX. This part maintains active product status with full ROHS3 compliance and REACH compliance, ensuring long-term availability and regulatory alignment. The tape & reel packaging format supports automated assembly processes.

SN74F574DW (Texas Instruments, Tube) serves as an alternative substitute with identical electrical specifications. This part carries Last Time Buy status, indicating limited future availability. The tube packaging format is suitable for manual assembly or lower-volume applications.

Both Texas Instruments substitutes provide complete electrical and mechanical equivalence to the obsolete onsemi 74F574SCX, with the primary distinction being product lifecycle status and packaging configuration.

Frequently Asked Questions (FAQ)

Q: Can SN74F574DW and SN74F574DWR be used interchangeably with 74F574SCX?

A: Yes. Both parts are electrically and mechanically equivalent to the 74F574SCX. The difference between SN74F574DW and SN74F574DWR is packaging format only: tube versus tape & reel. Selection depends on assembly method and procurement volume requirements.

Q: What is the difference between the two Texas Instruments substitutes?

A: SN74F574DWR (tape & reel) is in active production status, while SN74F574DW (tube) is Last Time Buy status. Both maintain identical electrical performance and 20-SOIC package specifications. Tape & reel packaging is standard for high-volume automated assembly; tube packaging is typical for lower-volume or manual assembly operations.

Q: Are there any compliance differences between the substitutes?

A: Both Texas Instruments parts are ROHS3 compliant and REACH unaffected. The onsemi 74F574SCX compliance status is not specified in available documentation. All three parts share MSL 1 (Unlimited) moisture sensitivity classification.

Q: Will the substitutes work in existing PCB designs using 74F574SCX?

A: Yes. The 20-SOIC package footprint, pin configuration, electrical specifications, and operating parameters are identical. No PCB redesign is required for substitution.

Q: Which substitute should be selected for new designs?

A: SN74F574DWR is the recommended choice for new designs due to active product status, ensuring availability throughout the design lifecycle and production phases.