SN74LS373NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS373NG4 is a D-Type Transparent Latch IC with 8:8 circuit configuration and tri-state output, manufactured by Texas Instruments in a 20-PDIP package. This component is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production continuity. The part operates within the 4.75V to 5.25V supply voltage range and is suitable for applications requiring transparent latch functionality with tri-state output control.

Substiute Parts

SN74LS373NG4

Texas InstrumentsIn Stock: 1026SN74LS373NG4 Datasheet

Current PartRFQ

SN74LS373N

Texas InstrumentsIn Stock: 13534SN74LS373N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LS373NG4 are determined by strict equivalence across the following critical parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Voltage Supply Range: 4.75V ~ 5.25V
• Propagation Delay: 12ns
• Output Current Specifications: 2.6mA (High), 24mA (Low)
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 20-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

The SN74LS373N qualifies as a direct substitute based on identical electrical characteristics and mechanical compatibility across all specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS373N is the direct equivalent for the discontinued SN74LS373NG4. Both parts share identical electrical specifications, mechanical dimensions, and compliance certifications. The SN74LS373N maintains active product status with established supply availability, making it the appropriate selection for design continuity and production requirements. Both parts comply with ROHS3 standards and carry REACH Unaffected status, ensuring regulatory alignment for current manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS373N be used as a direct replacement for the SN74LS373NG4?

A: Yes. The SN74LS373N is electrically and mechanically equivalent to the SN74LS373NG4 across all specified parameters, including logic type, circuit configuration, output characteristics, voltage supply range, propagation delay, and package dimensions.

Q: What is the difference between the SN74LS373NG4 and SN74LS373N?

A: The primary difference is product status. The SN74LS373NG4 is discontinued at DiGi Electronics, while the SN74LS373N maintains active status with current supply availability. All electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: No. Both parts use the 20-DIP (0.300", 7.62mm) package with through-hole mounting. Pin configuration and physical dimensions are identical, allowing direct board-level substitution.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the SN74LS373NG4 and SN74LS373N are ROHS3 compliant and REACH Unaffected, meeting current regulatory standards for electronic component manufacturing and distribution.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by matching the logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (Tri-State), voltage supply range (4.75V ~ 5.25V), propagation delay (12ns), output current specifications (2.6mA/24mA), operating temperature range (0°C ~ 70°C), and package type (20-DIP through-hole).