CLVTH16244AIGQLREP Equivalent & Substitute Parts

Part Overview

The CLVTH16244AIGQLREP is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 4 elements with 4 bits per element and 3-state output capability. Designed for 2.7V to 3.6V supply voltage operation, this component is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, production support, and long-term system maintenance. Substitute parts maintain functional equivalence while offering improved availability or active product status from alternative manufacturers.

Key Parameters

Parameter	Value
Manufacturer Part Number	CLVTH16244AIGQLREP
Manufacturer	Texas Instruments
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	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	56-VFBGA
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CLVTH16244AIGQLREP are classified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

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: 2.7V ~ 3.6V
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: 56-VFBGA
Mounting Type: Surface Mount

Group 1: Full Parametric Equivalents (56-VFBGA, 4 Elements) Parts matching all critical parameters with identical 56-VFBGA packaging and 4-element configuration:

SN74LVTH16244AZQLR (Texas Instruments, 74LVTH series)
SN74LVT16244BZQLR (Texas Instruments, 74LVT series)
74LVT16244BEV,151 (NXP USA Inc., Active status)
74LVT16244BEV,157 (NXP Semiconductors, Active status)
74LVT16244BEV,118 (NXP USA Inc., Active status)

Group 2: Reduced Element Configuration (20-VFBGA, 2 Elements) Parts with identical electrical specifications but reduced to 2 elements in 20-VFBGA packaging. These require design verification for pin compatibility:

SN74LVT244BZQNR (Texas Instruments, 74LVT series)
SN74LVTH244AZQNR (Texas Instruments, 74LVTH series)

Parameter Comparison

Parameter	CLVTH16244AIGQLREP	SN74LVTH16244AZQLR	SN74LVT16244BZQLR	SN74LVT244BZQNR	SN74LVTH244AZQNR	74LVT16244BEV,151	74LVT16244BEV,157	74LVT16244BEV,118
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	NXP USA Inc.	NXP Semiconductors	NXP USA Inc.
Series	74LVTH	74LVTH	74LVT	74LVT	74LVTH	74LVT	74LVT	74LVT
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
Number of Elements	4	4	4	2	2	4	4	4
Number of Bits per Element	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
Current - Output High, Low	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA	32mA, 64mA
Voltage - Supply	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	56-VFBGA	56-VFBGA	56-VFBGA	20-VFBGA	20-VFBGA	56-VFBGA	56-VFBGA	56-VFBGA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete	Active	Active	Active
RoHS Status	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)	2 (1 Year)	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (56-VFBGA, 4 Elements):

The NXP parts 74LVT16244BEV,151, 74LVT16244BEV,157, and 74LVT16244BEV,118 are recommended as primary substitutes. These parts maintain active product status, ensuring long-term availability and supply chain continuity. All three NXP variants are ROHS3 compliant and operate within identical electrical specifications. The MSL rating of 2 (1 Year) for NXP parts requires standard moisture control during storage and handling, compared to the MSL 1 (Unlimited) rating of the original part.

The Texas Instruments alternatives SN74LVTH16244AZQLR and SN74LVT16244BZQLR provide parametric equivalence but retain obsolete status. These are suitable for applications where existing inventory must be maintained or where design validation has already been completed with these specific part numbers.

For Reduced Element Configuration (20-VFBGA, 2 Elements):

The SN74LVT244BZQNR and SN74LVTH244AZQNR parts are parametric equivalents with reduced element count (2 elements instead of 4) in a smaller 20-VFBGA package. These substitutes require circuit design verification to confirm that the reduced element configuration aligns with application requirements. Pin mapping and functional block distribution must be validated before implementation.

Frequently Asked Questions (FAQ)

Q: Can I use a 2-element buffer (SN74LVT244BZQNR) as a direct replacement for the 4-element CLVTH16244AIGQLREP?

A: No. While the 2-element parts share identical electrical specifications (voltage, current, temperature range), they differ in functional architecture. The CLVTH16244AIGQLREP provides 4 independent buffer elements, whereas the SN74LVT244BZQNR provides only 2 elements. Direct substitution requires circuit redesign and pin mapping verification. Use only if your application requires fewer buffer elements.

Q: What is the difference between the Texas Instruments 74LVTH and 74LVT series?

A: Both series operate within the same electrical parameters specified for this application (2.7V ~ 3.6V supply, -40°C ~ 85°C operating range, 32mA/64mA output current). The primary distinction is product status: 74LVTH parts are obsolete, while some 74LVT variants remain in production. Series selection should prioritize availability and supply chain requirements.

Q: Are the NXP parts (74LVT16244BEV variants) fully compatible with the original Texas Instruments part?

A: Yes, for electrical and functional operation. All three NXP variants (74LVT16244BEV,151, 74LVT16244BEV,157, 74LVT16244BEV,118) maintain identical logic type, element count, bit configuration, output type, current ratings, voltage supply range, and operating temperature. Package and mounting type are identical (56-VFBGA, surface mount). The MSL rating difference (MSL 2 versus MSL 1) requires standard moisture control procedures during storage and assembly.

Q: Why do some substitute parts have different MSL ratings?

A: Moisture Sensitivity Level (MSL) reflects the component's sensitivity to moisture absorption during storage. The original CLVTH16244AIGQLREP has MSL 1 (Unlimited), meaning no time restrictions on storage. NXP parts have MSL 2 (1 Year), requiring that components be used within one year of the moisture barrier bag opening date. This difference does not affect electrical performance but impacts inventory management and handling procedures.

Q: Which substitute part should I select for new designs?

A: For new designs, select from the active-status NXP parts: 74LVT16244BEV,151, 74LVT16244BEV,157, or 74LVT16244BEV,118. These parts ensure long-term availability and supply chain stability. All three maintain full parametric equivalence with the original part and are ROHS3 compliant. Verify MSL 2 (1 Year) handling requirements are compatible with your manufacturing and storage processes.

Q: Can I mix different substitute parts in the same design?

A: Yes, provided all selected parts maintain identical electrical specifications and package type. Mixing 56-VFBGA 4-element parts (CLVTH16244AIGQLREP, SN74LVTH16244AZQLR, SN74LVT16244BZQLR, or any NXP variant) is functionally equivalent. Do not mix 56-VFBGA parts with 20-VFBGA parts (SN74LVT244BZQNR, SN74LVTH244AZQNR) in the same circuit without design verification.

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