SN74LS244NSRG4 Equivalent & Substitute Parts

Part Overview

The SN74LS244NSRG4 is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, part of the 74LS series. This device features 2 elements with 4 bits per element and 3-state output capability, housed in a 20-SOIC package. The part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design requirements and procurement needs.

Substiute Parts

SN74LS244NSRG4

Texas InstrumentsIn Stock: 880SN74LS244NSRG4 Datasheet

Current PartRFQ

SN74LS241NSR

Texas InstrumentsIn Stock: 978SN74LS241NSR Datasheet

Parametric EquivalentRFQ

SN74LS244NSR

Texas InstrumentsIn Stock: 4226SN74LS244NSR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LS244NSRG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Current ratings: 15mA (High), 24mA (Low)
• Supply Voltage: 4.75V ~ 5.25V
• Operating Temperature: 0°C ~ 70°C
• Package: 20-SOIC
• RoHS Compliance: ROHS3 Compliant

Substitute parts must match all electrical and mechanical parameters. Packaging format (Tape & Reel, Cut Tape, or Digi-Reel) does not affect functional equivalence but may impact procurement and handling requirements.

Parameter Comparison

Engineering Selection Recommendations

Both SN74LS241NSR and SN74LS244NSR are parametric equivalents to the SN74LS244NSRG4, with identical electrical and mechanical specifications. The primary distinction is product status: the original part is discontinued, while both substitutes are active and available.

SN74LS244NSR is available in higher inventory (4136 Pcs) compared to SN74LS241NSR (921 Pcs), providing greater procurement flexibility. Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with current manufacturing and environmental standards.

Selection between substitutes should be based on packaging format availability and supply chain requirements. Cut Tape (CT) & Digi-Reel packaging for SN74LS244NSR supports both automated and manual assembly workflows, while Tape & Reel (TR) packaging for SN74LS241NSR is optimized for high-volume automated placement.

Frequently Asked Questions (FAQ)

Q: Can SN74LS241NSR and SN74LS244NSR be used interchangeably with SN74LS244NSRG4?

A: Yes. Both parts are parametric equivalents with identical logic type, element count, bit configuration, output type, current ratings, supply voltage, operating temperature range, package dimensions, and compliance certifications.

Q: Does packaging format affect functional compatibility?

A: No. Packaging format (Tape & Reel, Cut Tape, or Digi-Reel) does not affect electrical or mechanical compatibility. Format selection depends on assembly process requirements and procurement preferences.

Q: Are there any compliance differences between the main part and substitutes?

A: No. All three parts are ROHS3 compliant with MSL Level 1 rating and REACH unaffected status, ensuring equivalent environmental and regulatory compliance.

Q: Why is the original SN74LS244NSRG4 discontinued?

A: Product discontinuation is determined by manufacturer lifecycle decisions. Active substitutes with identical specifications are available for continued design support and procurement.

Q: What is the difference between SN74LS241NSR and SN74LS244NSR?

A: Both parts are parametrically identical. The difference lies in base product number designation and current inventory levels. SN74LS244NSR has higher stock availability (4136 Pcs vs. 921 Pcs).