SN74LVC8T245PW Equivalent & Substitute Parts

Part Overview

The SN74LVC8T245PW is an active-status translation transceiver logic IC manufactured by Texas Instruments, designed for 8-bit bidirectional signal translation in 24-TSSOP surface mount packaging. This component operates across a 1.65V to 5.5V supply voltage range with 3-state output capability, making it suitable for mixed-voltage digital systems. Equivalent and substitute parts are identified based on matching functional classification, electrical parameters, and mechanical compatibility to support component procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Logic Type	Translation Transceiver
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	32mA, 32mA
Voltage - Supply	1.65V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	24-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parametric alignment with the SN74LVC8T245PW:

Category 1: Parametric Equivalents (Direct Substitutes) Parts that maintain identical or compatible electrical specifications, output configuration, and package form factor. These parts satisfy the core substitution criteria: 1 element, 8 bits per element, 3-state output, 24-pin TSSOP package, and overlapping supply voltage ranges.

SN74LVCH8T245PW (Texas Instruments, 74LVCH series)
74LVC8T245PW,118 (Nexperia USA Inc., 74LVC series)
74LVC8T245PW-Q100J (Nexperia USA Inc., 74LVC series, automotive qualified)

Category 2: Functional Equivalents (Alternative Translators) Parts that provide equivalent translation functionality with 8-channel bidirectional capability but differ in package form factor, voltage specifications, or output configuration. These parts are suitable when package constraints are flexible or when enhanced features are beneficial.

FXL4245MPX (onsemi, 24-MLP package, bidirectional voltage level translator)
FXLA108BQX (onsemi, 20-DQFN package, bidirectional with auto-direction sensing)
MAX3013ETP+T (Analog Devices Inc./Maxim Integrated, 20-TQFN package, bidirectional)
NVT2008BQ,115 (NXP USA Inc., 20-DHVQFN package, bidirectional with auto-direction sensing)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Logic Type	Bits per Element	Output Type	Voltage - Supply	Operating Temperature	Package / Case	Product Status
SN74LVC8T245PW	Texas Instruments	Translation Transceiver	8	3-State	1.65V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Active
SN74LVCH8T245PW	Texas Instruments	Translation Transceiver	8	3-State	1.65V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Active
74LVC8T245PW,118	Nexperia USA Inc.	Translation Transceiver	8	3-State	1.2V ~ 5.5V	-40°C ~ 125°C	24-TSSOP	Active
74LVC8T245PW-Q100J	Nexperia USA Inc.	Translation Transceiver	8	3-State	1.2V ~ 5.5V	-40°C ~ 125°C	24-TSSOP	Active
FXL4245MPX	onsemi	Voltage Level Translator	8	Tri-State, Non-Inverted	VCCA: 1.1V ~ 3.6V, VCCB: 1.1V ~ 3.6V	-40°C ~ 85°C	24-MLP (4.6x4.5)	Active
FXLA108BQX	onsemi	Voltage Level Translator	8	Tri-State, Non-Inverted	VCCA: 1.1V ~ 3.6V, VCCB: 1.1V ~ 3.6V	-40°C ~ 85°C	20-DQFN (2.5x4.5)	Active
MAX3013ETP+T	Analog Devices Inc./Maxim Integrated	Voltage Level Translator	8	Tri-State, Non-Inverted	VCCA: 1.2V ~ 3.6V, VCCB: 1.65V ~ 3.6V	-40°C ~ 85°C	20-TQFN (5x5)	Active
NVT2008BQ,115	NXP USA Inc.	Voltage Level Translator	8	Open Drain, Push-Pull	VCCA: 1V ~ 3.6V, VCCB: 1.8V ~ 5.5V	-40°C ~ 85°C	20-DHVQFN (4.5x2.5)	Active

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement: Select SN74LVCH8T245PW or 74LVC8T245PW,118 when PCB layout and package footprint constraints require 24-TSSOP form factor. Both parts maintain identical pinout and electrical compatibility with the SN74LVC8T245PW. The Nexperia variants (74LVC8T245PW,118 and 74LVC8T245PW-Q100J) offer extended operating temperature range (-40°C to 125°C) and lower minimum supply voltage (1.2V), providing enhanced performance margins in temperature-sensitive or low-voltage applications. The 74LVC8T245PW-Q100J variant includes AEC-Q100 automotive qualification for applications requiring automotive-grade components.

For Flexible Package Designs: When PCB layout permits alternative package geometries, functional equivalents from onsemi, Analog Devices, and NXP provide 8-channel translation capability with reduced pin counts (20-pin packages) and enhanced features. FXL4245MPX maintains 24-pin compatibility with bidirectional translation. FXLA108BQX and MAX3013ETP+T offer auto-direction sensing and higher data rates (140Mbps and 100Mbps respectively), suitable for high-speed signal translation. NVT2008BQ,115 provides asymmetric voltage support (VCCA 1V to 3.6V, VCCB 1.8V to 5.5V) for mixed-voltage interface applications.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and active product status, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can SN74LVCH8T245PW be used as a direct replacement for SN74LVC8T245PW? A: Yes. Both parts are 24-TSSOP translation transceivers with 8-bit per element configuration and 3-state output. Electrical specifications are compatible across the overlapping supply voltage range (1.65V to 5.5V) and operating temperature range (-40°C to 85°C). Pin configuration and functional behavior are identical.

Q: What is the difference between the Texas Instruments and Nexperia variants? A: The Nexperia 74LVC8T245PW,118 and 74LVC8T245PW-Q100J variants support lower minimum supply voltage (1.2V versus 1.65V) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). The Q100J variant includes AEC-Q100 automotive qualification. All three parts maintain identical 24-TSSOP packaging and pinout.

Q: Can I use FXL4245MPX or FXLA108BQX if my PCB is designed for 24-TSSOP? A: No. FXL4245MPX uses 24-MLP package (different pin pitch and footprint), and FXLA108BQX uses 20-DQFN package. These require PCB redesign. Use these alternatives only when layout flexibility permits package changes.

Q: What are the key differences between 3-state output and tri-state output? A: These terms are functionally equivalent in logic IC specifications. Both describe output stages capable of three states: logic high, logic low, and high-impedance (disabled). The SN74LVC8T245PW and its direct equivalents use 3-state terminology; alternative translators use tri-state terminology. Functional behavior is identical.

Q: Is the 74LVC8T245PW-Q100J suitable for automotive applications? A: Yes. The 74LVC8T245PW-Q100J carries AEC-Q100 automotive qualification, indicating compliance with automotive-grade reliability and testing standards. This variant is appropriate for automotive and harsh-environment applications requiring qualified components.

Q: What is the advantage of auto-direction sensing in FXLA108BQX and NVT2008BQ,115? A: Auto-direction sensing automatically detects signal direction on bidirectional channels, eliminating the need for external direction control logic. This simplifies circuit design in applications with dynamic signal direction changes. The SN74LVC8T245PW requires external direction control via dedicated pins.

Q: Can I substitute NVT2008BQ,115 if my application requires 5.5V supply voltage? A: Partially. NVT2008BQ,115 supports VCCB (B-side supply) up to 5.5V, but VCCA (A-side supply) is limited to 3.6V maximum. This asymmetric voltage support is suitable for mixed-voltage interfaces where one side operates at 5.5V and the other at 3.6V or lower. Verify your specific voltage requirements before selection.

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