74ALVT16244DGG Equivalent & Substitute Parts

Part Overview

The 74ALVT16244DGG is a non-inverting buffer logic IC manufactured by Nexperia USA Inc., designed for 4-element, 4-bit per element configurations with 3-state output capability. This component operates across dual voltage supply ranges (2.3V–2.7V and 3V–3.6V) and is housed in a 48-TSSOP package. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers for ongoing system support and new designs.

Key Parameters

Parameter	Value
Manufacturer	Nexperia USA Inc.
Part Number	74ALVT16244DGG,512
Series	74ALVT
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	32mA, 64mA
Voltage - Supply	2.3V–2.7V, 3V–3.6V
Operating Temperature	-40°C to 85°C (TA)
Mounting Type	Surface Mount
Package / Case	48-TFSOP (0.240", 6.10mm Width)
Supplier Device Package	48-TSSOP
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the 74ALVT16244DGG is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 4
Output Type: 3-State
Voltage - Supply: 2.3V–2.7V, 3V–3.6V
Operating Temperature: -40°C to 85°C (TA)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

Package Compatibility Considerations: Substitutes are grouped by package type. The primary package (48-TFSOP, 0.240" width) is directly compatible with identical package specifications. Substitutes in alternative packages (48-BSSOP, 0.295" width; 48-TVSOP, 0.173" width) require mechanical and thermal evaluation for PCB layout compatibility.

Output Current Variations: The main part specifies 32mA (high) and 64mA (low) output current. Certain substitutes operate at reduced current levels (8mA/12mA), which may affect drive capability in specific applications but remain functionally equivalent for standard logic buffering operations.

Parameter Comparison

Parameter	74ALVT16244DGG	SN74ALVTH16244GR	SN74ALVTH162244DL	SN74ALVTH162244GR	SN74ALVTH162244LR	SN74ALVTH162244VR	SN74ALVTH16244DL	SN74ALVTH16244DLR	SN74ALVTH16244VR
Manufacturer	Nexperia USA Inc.	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Series	74ALVT	74ALVTH	74ALVTH	74ALVTH	74ALVTH	74ALVTH	74ALVTH	74ALVTH	74ALVTH
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	4	4	4	4	4	4	4	4	4
Number of Bits per Element	4	4	4	4	4	4	4	4	4
Output Type	3-State	3-State	3-State	3-State	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	32mA, 64mA	32mA, 64mA	8mA, 12mA	8mA, 12mA	8mA, 12mA	8mA, 12mA	32mA, 64mA	32mA, 64mA	32mA, 64mA
Voltage - Supply	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V	2.3V–2.7V, 3V–3.6V
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	48-TFSOP (0.240", 6.10mm)	48-TFSOP (0.240", 6.10mm)	48-BSSOP (0.295", 7.50mm)	48-TFSOP (0.240", 6.10mm)	48-BSSOP (0.295", 7.50mm)	48-TFSOP (0.173", 4.40mm)	48-BSSOP (0.295", 7.50mm)	48-BSSOP (0.295", 7.50mm)	48-TFSOP (0.173", 4.40mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete

Engineering Selection Recommendations

All listed substitute parts maintain full compliance with ROHS3 and REACH requirements, matching the regulatory status of the original 74ALVT16244DGG. All components are classified as obsolete, indicating that long-term availability may be limited across all options.

Direct Package Match (48-TFSOP, 0.240" width): SN74ALVTH16244GR and SN74ALVTH162244GR provide identical package footprints to the original part. SN74ALVTH16244GR maintains matching output current specifications (32mA/64mA), ensuring equivalent electrical performance in existing designs without modification.

Alternative Package Options: Parts designated with 48-BSSOP (0.295" width) or 48-TVSOP (0.173" width) packages require PCB layout re-evaluation. These alternatives introduce different thermal and mechanical characteristics that must be assessed for specific application requirements.

Output Current Consideration: Substitutes with reduced output current (8mA/12mA) are functionally equivalent for standard logic buffering but may require verification in applications demanding higher drive capability or lower output impedance.

Frequently Asked Questions (FAQ)

Q: Can I use SN74ALVTH162244DL as a direct replacement for 74ALVT16244DGG?

A: SN74ALVTH162244DL is functionally equivalent in logic operation but differs in two aspects: package type (48-BSSOP vs. 48-TFSOP) and output current (8mA/12mA vs. 32mA/64mA). PCB layout modification is required for package compatibility. Output current reduction may affect applications with high capacitive loads.

Q: What is the difference between 48-TFSOP and 48-BSSOP packages?

A: 48-TFSOP measures 0.240" (6.10mm) in width, while 48-BSSOP measures 0.295" (7.50mm) in width. These are distinct footprints requiring different PCB pad layouts. Mechanical compatibility cannot be assumed without design review.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original 74ALVT16244DGG.

Q: Why do some substitutes have lower output current ratings?

A: The 74ALVTH series from Texas Instruments includes variants optimized for different current requirements. Parts rated at 8mA/12mA are suitable for standard logic buffering applications. Selection depends on specific load impedance and signal integrity requirements in your circuit.

Q: Is the 48-TVSOP package compatible with my existing PCB?

A: 48-TVSOP (0.173" width) is a compact variant distinct from both 48-TFSOP and 48-BSSOP. Compatibility requires verification against your PCB design specifications. Consult your PCB layout documentation before selecting this package option.

Q: All parts are listed as obsolete. What does this mean for availability?

A: Obsolete status indicates these components are no longer in active production. Availability is limited to existing inventory. For long-term system support, evaluate active-production alternatives or consider design migration strategies.

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