SN74LVC2244ADGVR Equivalent & Substitute Parts

Part Overview

The SN74LVC2244ADGVR is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for 3-state output applications in low-voltage digital systems. This 20-TVSOP surface mount device operates across a supply voltage range of 1.65V to 3.6V and is classified as Active product status. Substitute parts are necessary when the primary device is unavailable, when alternative packaging formats are required, or when enhanced electrical specifications better suit specific application requirements.

Substiute Parts

SN74LVC2244ADGVR

Texas InstrumentsIn Stock: 2672SN74LVC2244ADGVR Datasheet

Current PartRFQ

74LCX2244MTCX

Fairchild SemiconductorIn Stock: 387274LCX2244MTCX Datasheet

MFR RecommendedRFQ

74LCX244MTC

onsemiIn Stock: 819274LCX244MTC Datasheet

MFR RecommendedRFQ

74LCX244MTCX

onsemiIn Stock: 1926974LCX244MTCX Datasheet

MFR RecommendedRFQ

74LVC2244APW,118

NXP SemiconductorsIn Stock: 11219274LVC2244APW,118 Datasheet

MFR RecommendedRFQ

MC74LCX244DTG

onsemiIn Stock: 1923MC74LCX244DTG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC2244ADGVR is determined by the following critical parameters:

• Logic Type: Buffer, Non-Inverting (must match)
• Number of Elements: 2 (must match)
• Number of Bits per Element: 4 (must match)
• Output Type: 3-State (must match)
• Mounting Type: Surface Mount (must match)
• Package Width: 4.40mm (must match)
• Operating Temperature Range: Minimum -40°C, Maximum 85°C or higher (substitute must meet or exceed)
• Voltage Supply Range: Substitute must support the application voltage within 1.65V ~ 3.6V envelope
• Current Output Capability: Substitute must provide minimum 12mA output current

The identified substitute parts maintain functional equivalence through matching logic architecture, element count, bit configuration, and 3-state output characteristics. Package dimensions remain consistent across all substitutes to ensure PCB compatibility. Variations in supply voltage range, output current capability, and operating temperature represent enhanced or alternative specifications that may benefit specific application scenarios.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status, ensuring long-term availability and manufacturing support. Selection among substitutes should be based on the following criteria:

For applications requiring minimum supply voltage operation below 2V, the 74LVC2244APW,118 from NXP Semiconductors supports operation down to 1.2V, providing extended low-voltage capability compared to the main part's 1.65V minimum.

For applications requiring extended temperature operation beyond 85°C, both the 74LVC2244APW,118 and MC74LCX244DTG support operating temperatures up to 125°C. The MC74LCX244DTG additionally supports supply voltages up to 5.5V, accommodating higher-voltage system environments.

For applications requiring enhanced output current capability, the 74LCX244MTC, 74LCX244MTCX, and MC74LCX244DTG provide 24mA output current compared to the main part's 12mA specification.

All substitute parts maintain ROHS3 compliance where specified and MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols. Package dimensions remain consistent across TFSOP and TSSOP variants at 4.40mm width, supporting direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 74LCX2244MTCX directly replace the SN74LVC2244ADGVR on the same PCB?

A: The 74LCX2244MTCX maintains identical package width (4.40mm) and pin count (20-pin), supporting direct PCB replacement. However, the supply voltage minimum is 2V compared to the main part's 1.65V minimum. Verify that your application supply voltage remains at or above 2V for full compatibility.

Q: What is the difference between TFSOP and TSSOP packaging?

A: Both TFSOP (Thin Fine-Pitch Small Outline Package) and TSSOP (Thin Shrink Small Outline Package) are 20-pin surface mount packages with 4.40mm width. The primary difference lies in internal lead frame geometry and manufacturing process. Both are mechanically compatible for PCB placement and soldering.

Q: Which substitute part offers the best performance for high-temperature applications?

A: The MC74LCX244DTG and 74LVC2244APW,118 both support operating temperatures up to 125°C. The MC74LCX244DTG additionally supports supply voltages up to 5.5V, making it suitable for applications requiring both extended temperature range and higher supply voltage tolerance.

Q: Are all substitute parts RoHS3 compliant?

A: The 74LCX244MTC, 74LCX244MTCX, and MC74LCX244DTG are explicitly specified as ROHS3 Compliant. The 74LCX2244MTCX and 74LVC2244APW,118 do not have RoHS status specified in the provided data. Verify RoHS compliance requirements with the manufacturer or supplier for your specific application.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Moisture Sensitivity Level 1) with Unlimited rating indicates that the component has no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or manufacturing, simplifying supply chain and assembly processes.

Q: Can I use the 74LVC2244APW,118 in a 1.2V application?

A: Yes. The 74LVC2244APW,118 supports supply voltage operation from 1.2V to 3.6V, making it suitable for ultra-low-voltage applications. The main part (SN74LVC2244ADGVR) supports minimum 1.65V, so the NXP part provides extended low-voltage capability.

Q: What output current should I specify for my application?

A: The main part provides 12mA output current capability. If your application requires higher drive capability, select from the 24mA variants: 74LCX244MTC, 74LCX244MTCX, or MC74LCX244DTG. Verify that your load impedance and signal integrity requirements align with the selected output current specification.