SN74LVTH245AMDBREP Equivalent & Substitute Parts

Part Overview

The SN74LVTH245AMDBREP is a non-inverting transceiver logic IC manufactured by Texas Instruments, designed for 3-state output applications in 20-SSOP surface mount packaging. This component operates across a 2.7V to 3.6V supply voltage range and supports 8-bit per element data transfer with output drive capabilities of 32mA (high) and 64mA (low). The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the original SN74LVTH245AMDBREP experiences supply constraints, extended lead times, or when design requirements permit alternative packaging or performance specifications within the same functional category.

Key Parameters

Parameter	Value
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High / Low	32mA / 64mA
Voltage - Supply	2.7V ~ 3.6V
Operating Temperature	-55°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	20-SSOP (0.209", 5.30mm Width)
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVTH245AMDBREP is determined by the following critical parameters:

Functional Equivalence Requirements:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 1
Number of Bits per Element: 8
Output Type: 3-State
Voltage - Supply: 2.7V ~ 3.6V

Performance Compatibility Parameters:

Current - Output High / Low: 32mA / 64mA (or higher)
Operating Temperature: Must support minimum -40°C ~ 85°C range

Physical Compatibility:

Mounting Type: Surface Mount
Package / Case: 20-SSOP or 20-TSSOP (both 20-pin configurations)

Substitute parts are grouped into two categories: parametric equivalents (identical specifications) and manufacturer-recommended alternatives (functionally equivalent with minor specification variations in output current or operating temperature range).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Logic Type	Output Current (High/Low)	Operating Temp	Package	Product Status	Inventory
SN74LVTH245AMDBREP	Texas Instruments	74LVTH	Transceiver, Non-Inverting	32mA / 64mA	-55°C ~ 125°C	20-SSOP	Active	2200 Pcs
74LVT2245PW,112	Nexperia USA Inc.	74LVT	Transceiver, Non-Inverting	12mA / 12mA	-40°C ~ 85°C	20-TSSOP	Obsolete	1066 Pcs
74LVT245BPW,118	Nexperia USA Inc.	74LVT	Transceiver, Non-Inverting	32mA / 64mA	-40°C ~ 85°C	20-TSSOP	Active	18136 Pcs
74LVT245MTCX	onsemi	74LVT	Transceiver, Non-Inverting	32mA / 64mA	-40°C ~ 85°C	20-TSSOP	Last Time Buy	65300 Pcs
74LVT245PW,118	Nexperia USA Inc.	74LVT	Transceiver, Non-Inverting	32mA / 64mA	-40°C ~ 85°C	20-TSSOP	Active	6879 Pcs
74LVTH2245MTCX	Fairchild Semiconductor	74LVTH	Transceiver, Non-Inverting	32mA / 64mA, 12mA / 12mA	-40°C ~ 85°C	20-TSSOP	Active	10368 Pcs
74LVTH2245PW,118	NXP USA Inc.	74LVTH	Transceiver, Non-Inverting	12mA / 12mA	-40°C ~ 85°C	20-TSSOP	Active	3197 Pcs
74LVTH245MTCX	Fairchild Semiconductor	74LVTH	Transceiver, Non-Inverting	32mA / 64mA	-40°C ~ 85°C	20-TSSOP	Active	32648 Pcs

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Current Capability):

74LVT245BPW,118 and 74LVT245PW,118 from Nexperia USA Inc. are the preferred substitutes when the original SN74LVTH245AMDBREP is unavailable. Both maintain the 32mA/64mA output current specification and operate within the 2.7V to 3.6V supply range. These parts are in active production with ROHS3 compliance. The primary design consideration is the reduced operating temperature range (-40°C to 85°C versus -55°C to 125°C), which is acceptable for most commercial and industrial applications.

Secondary Substitutes (Active Status, Reduced Current Capability):

74LVTH2245PW,118 from NXP USA Inc. provides functional equivalence with reduced output current (12mA/12mA). This part is suitable for applications where lower drive current is acceptable and where the 74LVTH series designation is preferred for design consistency.

Alternative Substitutes (Last Time Buy Status):

74LVT245MTCX from onsemi is available in high inventory (65300 Pcs) but carries Last Time Buy status, indicating discontinued production. This part maintains full 32mA/64mA output current and is suitable for immediate procurement but not recommended for long-term design commitments.

Not Recommended:

74LVT2245PW,112 from Nexperia USA Inc. carries Obsolete status and reduced output current (12mA/12mA), making it unsuitable for new designs or long-term supply planning.

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and REACH unaffected status, matching the original part's regulatory compliance profile.

Frequently Asked Questions (FAQ)

Q: Can I use 74LVT245BPW,118 as a direct replacement for SN74LVTH245AMDBREP?

A: Yes, 74LVT245BPW,118 is functionally equivalent with matching output current (32mA/64mA) and supply voltage range (2.7V ~ 3.6V). The primary difference is the reduced operating temperature range (-40°C to 85°C versus -55°C to 125°C). If your application operates within -40°C to 85°C, this part is a direct substitute. The package change from 20-SSOP to 20-TSSOP requires PCB layout verification for pin spacing compatibility.

Q: What is the difference between 20-SSOP and 20-TSSOP packaging?

A: Both are 20-pin surface mount packages with different body widths. 20-SSOP has a width of 0.209" (5.30mm), while 20-TSSOP has a width of 0.173" (4.40mm). Pin pitch and footprint differ, requiring PCB redesign if switching between these packages. Verify your PCB layout supports the target package before substitution.

Q: Why do some substitute parts have lower output current (12mA/12mA)?

A: Parts like 74LVTH2245PW,118 and 74LVT2245PW,112 are designed for lower-power applications. If your circuit requires the full 32mA/64mA drive capability, these parts are not suitable. Verify your application's current requirements before selecting a lower-current alternative.

Q: Is 74LVT245MTCX from onsemi recommended for new designs?

A: 74LVT245MTCX carries Last Time Buy status, indicating the manufacturer has discontinued production. While currently available in high inventory, it is not recommended for new designs requiring long-term supply assurance. Use 74LVT245BPW,118 or 74LVT245PW,118 for new designs.

Q: Do all substitute parts meet the same compliance standards as the original?

A: Yes, all listed substitute parts are ROHS3 compliant, carry MSL 1 (unlimited) moisture sensitivity rating, and are REACH unaffected, matching the original SN74LVTH245AMDBREP compliance profile.

Q: What is the impact of the reduced operating temperature range on my application?

A: If your application operates between -40°C and 85°C, the reduced range has no impact. If your design requires operation below -40°C or above 85°C, you must use the original SN74LVTH245AMDBREP or verify that substitute parts meet your specific temperature requirements through datasheet review.

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