SN74ALS574BNG4 Equivalent & Substitute Parts

Part Overview

The SN74ALS574BNG4 is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, featuring 1 element with 8-bit capacity and tri-state non-inverted output. This component operates at a clock frequency of 35 MHz with a maximum propagation delay of 14 ns at 5V with 50 pF load. The device is packaged in a 20-DIP (0.300", 7.62mm) through-hole configuration and is compliant with ROHS3 and REACH standards.

The SN74ALS574BNG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

SN74ALS574BNG4

Texas InstrumentsIn Stock: 1129SN74ALS574BNG4 Datasheet

Current PartRFQ

SN74ALS574BN

Texas InstrumentsIn Stock: 2122SN74ALS574BN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74ALS574BNG4 is determined by strict equivalence across the following critical parameters:

• Functional type: D-Type flip-flop with 1 element, 8-bit configuration
• Output characteristics: Tri-state, non-inverted output
• Electrical performance: 35 MHz clock frequency, 14 ns maximum propagation delay at specified conditions
• Trigger mechanism: Positive edge triggering
• Supply voltage range: 4.5V ~ 5.5V
• Output current specifications: 2.6 mA (high), 24 mA (low)
• Quiescent current: 18 mA
• Operating temperature range: 0°C ~ 70°C
• Package format: 20-DIP (0.300", 7.62mm) through-hole mounting
• Regulatory compliance: ROHS3 and REACH standards

The SN74ALS574BN qualifies as a direct substitute based on identical electrical specifications, functional characteristics, and package configuration. The primary distinction is packaging format (tube versus individual) and product status (active versus discontinued).

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS574BN is a direct functional and electrical equivalent to the SN74ALS574BNG4. Both components share identical electrical specifications, performance characteristics, and regulatory compliance certifications (ROHS3 and REACH). The SN74ALS574BN maintains active product status with higher inventory availability, making it the preferred selection for new designs and component replenishment.

The distinction between the two parts is limited to packaging format (tube versus individual) and supplier product status. No electrical or functional modifications are required when substituting the SN74ALS574BN for the SN74ALS574BNG4 in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS574BN be used as a direct replacement for the SN74ALS574BNG4?

A: Yes. Both components are electrically and functionally identical. They share the same clock frequency (35 MHz), propagation delay (14 ns), output characteristics (tri-state, non-inverted), supply voltage range (4.5V ~ 5.5V), and 20-DIP package configuration. The primary difference is packaging format and product status.

Q: What is the difference between the SN74ALS574BNG4 and SN74ALS574BN?

A: The SN74ALS574BNG4 is supplied individually, while the SN74ALS574BN is supplied in tube packaging. The SN74ALS574BNG4 is discontinued at DiGi Electronics, whereas the SN74ALS574BN maintains active product status. All electrical and functional parameters are identical.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both components use the same 20-DIP (0.300", 7.62mm) through-hole package, identical pin configuration, and equivalent electrical performance. Direct board-level substitution is possible without circuit modifications.

Q: What is the significance of the 74ALS series designation?

A: The 74ALS designation indicates the logic family classification. Both the SN74ALS574BNG4 and SN74ALS574BN belong to the same 74ALS (Advanced Low-power Schottky) logic family, ensuring consistent electrical behavior and performance characteristics across the product line.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the SN74ALS574BNG4 and SN74ALS574BN are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.