SN74LS164NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS164NG4 is an 8-bit shift register logic integrated circuit manufactured by Texas Instruments in a 14-DIP package. This component functions as a serial-to-parallel converter with push-pull output configuration, designed for digital logic applications requiring data shifting operations.

The SN74LS164NG4 is discontinued at DiGi Electronics. Locating equivalent substitute parts is necessary to maintain design continuity and ensure project completion when original inventory becomes unavailable.

Substiute Parts

SN74LS164NG4

Texas InstrumentsIn Stock: 894SN74LS164NG4 Datasheet

Current PartRFQ

SN74LS164N

Texas InstrumentsIn Stock: 15459SN74LS164N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS164NG4 is determined by the following critical parameters:

• Logic Type: Shift Register
• Number of Elements: 1
• Number of Bits per Element: 8
• Function: Serial to Parallel
• Output Type: Push-Pull
• Voltage - Supply: 4.75V ~ 5.25V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 14-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

The SN74LS164N qualifies as a direct substitute because it maintains identical electrical specifications, functional characteristics, and physical packaging. The primary difference is product status: SN74LS164N is active and available in higher inventory quantities.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS164N is the recommended substitute for the SN74LS164NG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The SN74LS164N carries active product status with significantly higher inventory availability, ensuring supply chain continuity.

Both parts comply with ROHS3 and REACH requirements, maintaining regulatory compliance for applications requiring these certifications. The packaging and mounting characteristics are identical, allowing direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS164N directly replace the SN74LS164NG4 without circuit modification?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. Direct substitution is possible without circuit redesign or board layout changes.

Q: Are there differences in supply voltage or operating temperature ranges?

A: No. Both parts operate within the same voltage range (4.75V ~ 5.25V) and temperature range (0°C ~ 70°C).

Q: What is the significance of the packaging designation difference (NG4 vs. N)?

A: The NG4 designation indicates a specific supplier packaging format (DiGi Electronics part number variant), while the N designation represents the base Texas Instruments part number with standard tube packaging. The physical 14-DIP package remains identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74LS164NG4 and SN74LS164N are ROHS3 compliant and REACH unaffected, maintaining identical regulatory compliance.

Q: Why is the SN74LS164N recommended over the SN74LS164NG4?

A: The SN74LS164N maintains active product status with substantially higher inventory availability (15,423 units versus 861 units), providing greater supply security and shorter lead times for procurement.