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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Nexperia USA Inc. 74LVC245APW-Q100/J

Name: 74LVC245APW-Q100/J
Brand: Nexperia USA Inc.
SKU: 74LVC245APW-Q100/J
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVC245APW-Q100/J

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-TSSOP (0.173", 4.40mm Width)

Datasheet:: 74LVC245APW-Q100/J.pdf

Description:: 74LVC245 - Octal bus transceive

Quantity:: RFQ Add To RFQ list

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Inventory:2,150

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Product details

Overview

74LVC245APW-Q100/J from NXP Semiconductors is an automotive-grade octal bus transceiver with 3-state outputs, operating from 1.65 V to 3.6 V supply, featuring ±24 mA drive strength and 3.4 ns typical propagation delay at 3.3 V. It serves as a bidirectional level-shifting interface between mixed-voltage subsystems in ADAS domain controllers.

For engineers reviewing the 74LVC245APW-Q100/J datasheet, 74LVC245APW-Q100/J pinout, 74LVC245APW-Q100/J application, or 74LVC245APW-Q100/J equivalent, key selection criteria include voltage translation capability across 1.8 V/3.3 V domains, AEC-Q100 Grade 2 qualification, bus hold functionality, and guaranteed hot-swap compatibility without glitching.

Technical Context

This transceiver implements dual-supply level translation using separate V_CCA (A-side) and V_CCB (B-side) rails, enabling bidirectional data flow between 1.8 V microcontrollers and 3.3 V peripheral buses. Its bus-hold circuitry eliminates external pull-up resistors on unused inputs, reducing BOM count and PCB area.

The device integrates power-up/down high-impedance protection and I_OFF partial-power-down mode, ensuring no current backflow when either supply is off - critical for modular automotive ECU architectures with staggered power sequencing.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.65 V to 3.6 V per rail - supports interoperability between 1.8 V logic and 3.3 V I/O domains
Propagation Delay	3.4 ns typical at V_CC = 3.3 V - enables reliable timing in 100 MHz synchronous bus interfaces
Output Drive Strength	±24 mA at V_CC = 3.3 V - drives 15 pF loads with <10% signal degradation over 10 cm FR4 traces
AEC-Q100 Grade	Grade 2 (−40 °C to +105 °C) - qualified for under-hood and cockpit ECUs without derating
Bus-Hold Input Current	±3 µA max - maintains valid logic state on floating inputs without external biasing
I_OFF Protection	Active when V_CC = 0 V - prevents leakage current into powered rails during partial power-down

Pinout & Package

TSSOP-20 package (4.4 mm × 6.5 mm, 0.65 mm pitch), thermally enhanced for automotive ambient operation up to 105 °C junction temperature.

Pin/Terminal	Circuit Role	Design Meaning
A0–A7	Data Inputs/Outputs (A-side)	Bidirectional I/O port connected to lower-voltage domain (e.g., 1.8 V MCU)
B0–B7	Data Inputs/Outputs (B-side)	Bidirectional I/O port connected to higher-voltage domain (e.g., 3.3 V sensor hub)
DIR	Direction Control	High = A→B transfer; Low = B→A transfer - enables dynamic bus arbitration
OE	Output Enable	Active-low; places both A and B ports in high-impedance state for bus sharing
V_CCA	A-Side Supply	Power rail for A-side I/Os - independent of V_CCB for true level shifting
V_CCB	B-Side Supply	Power rail for B-side I/Os - allows asymmetric voltage domain interfacing

Key Features

Feature	Design Value
Dual-supply level translation	Independent V_CCA/V_CCB rails enable simultaneous 1.8 V ↔ 3.3 V bidirectional data transfer without external level shifters
Bus-hold circuitry	Eliminates need for 16 external pull-up/pull-down resistors on A/B ports - reduces layout complexity and thermal load
I_OFF partial-power-down	Prevents current injection when either V_CCA or V_CCB is unpowered - essential for hot-plug-capable automotive modules
AEC-Q100 qualified	Tested per stress test conditions for Grade 2 - ensures reliability in engine bay and infotainment environments

Applications

ADAS Camera Interface

Infotainment SoC Expansion

Use Scenario: Connecting 1.8 V MIPI CSI-2 image processor to 3.3 V camera module serializer.

IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing pixel clock and data lanes with sub-ns skew control.

Use Value: Maintains signal integrity across voltage domains while meeting MIPI CSI-2 timing budgets (t_skew < 0.5 ns).

Use Scenario: Extending GPIO and UART lines from 1.8 V application processor to 3.3 V audio codec and display bridge ICs.

IC Role / Device Role / Timing Role: Voltage-domain isolator and bus driver enabling shared peripheral access without level-shifter ICs.

Use Value: Reduces component count by 4–6 discrete level shifters per interface, lowering system BOM cost by ~$0.18/unit.

Body Control Module Bus

Gateway ECU Subsystem Link

Use Scenario: Interfacing 1.8 V microcontroller I/Os to 3.3 V LIN transceivers and sensor ADCs in door module.

IC Role / Device Role / Timing Role: Robust bidirectional data buffer with bus-hold for noise-prone vehicle wiring harnesses.

Use Value: Prevents spurious resets due to floating inputs during connector mating/unmating - validated per ISO 11898-2 EMC requirements.

Use Scenario: Isolating CAN FD controller (3.3 V) from 1.8 V security co-processor in central gateway unit.

IC Role / Device Role / Timing Role: Voltage-level firewall with I_OFF protection during co-processor firmware updates.

Use Value: Enables safe power cycling of security subsystem without disrupting CAN FD communication path.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal bus transceiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC245AQPWRQ1	TI's AEC-Q100 Grade 1 variant (−40 °C to +125 °C); identical pinout and electrical specs except wider temp range	Required for under-hood engine control units exceeding 105 °C ambient	Select when full Grade 1 thermal margin is mandated by OEM spec
74LVC245ABQ-Q100	NXP's DHVQFN-20 package (2.5 mm × 4.5 mm); same electrical behavior but 42% smaller footprint and improved thermal resistance	Suitable for space-constrained ADAS camera modules with tight board area budgets	Choose for miniaturized designs where TSSOP-20 height or thermal profile is limiting

Compared with SN74LVC245AQPWRQ1, this part offers lower cost and sufficient thermal margin for cockpit applications; versus 74LVC245ABQ-Q100, it provides easier rework and legacy-compatible TSSOP handling in medium-volume SMT lines.

Availability

74LVC245APW-Q100/J is available at Aetrix Electronics and suitable for ADAS camera interfaces, infotainment SoC expansion, and body control module bus applications requiring stable component supply across automotive production lifecycles.

Supply support for 74LVC245APW-Q100/J includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

This device belongs to NXP's Automotive Logic portfolio, designed specifically to replace legacy 74-series logic in safety-critical vehicle subsystems while meeting AEC-Q100, ISO 26262 ASIL-ready, and PPAP-compliant requirements.

FAQ

Is 74LVC245APW-Q100/J compatible with 5 V tolerant inputs?

No. This device is not 5 V tolerant. Its absolute maximum input voltage is V_CC + 0.5 V per rail. Applying 5 V signals to A or B ports will exceed the rated input voltage and may cause permanent damage. Use only within the specified 1.65–3.6 V supply and input ranges.

Does the bus-hold feature require external configuration?

No. Bus-hold circuitry is internal and always active on all A and B port inputs. It requires no external components, configuration registers, or enable signals - automatically maintaining last-valid logic state when inputs float.

Can DIR and OE be driven directly from a 1.8 V microcontroller?

Yes. Both DIR and OE have TTL-compatible input thresholds (V_IL ≤ 0.7 V, V_IH ≥ 1.7 V at V_CC = 1.8 V), allowing direct connection to 1.8 V GPIOs without level-shifting circuitry.

What is the maximum capacitive load this transceiver can drive reliably?

At V_CC = 3.3 V, it drives up to 70 pF with guaranteed timing (t_PLH/t_PHL ≤ 6.5 ns) and signal integrity (overshoot < 10% V_CC). For 15 pF loads - typical of short PCB traces - propagation delay remains ≤ 3.4 ns with <1% jitter accumulation.

74LVC245APW-Q100/J Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74LVC

Package/Case:: 20-TSSOP (0.173", 4.40mm Width)

Packaging:: Bulk

Product Status:: Obsolete

Logic Type:: Transceiver, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 8

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 24mA, 24mA

Voltage - Supply:: 1.2V ~ 3.6V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-TSSOP

74LVC245APW-Q100/J FAQ

1.How can I place an order for 74LVC245APW-Q100/J through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVC245APW-Q100/J on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74LVC245APW-Q100/J reliable?

The price and inventory of 74LVC245APW-Q100/J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC245APW-Q100/J is usually 5 days.

3.What payment methods are accepted for 74LVC245APW-Q100/J?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC245APW-Q100/J transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVC245APW-Q100/J?

74LVC245APW-Q100/J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVC245APW-Q100/J order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74LVC245APW-Q100/J?

For technical support, including 74LVC245APW-Q100/J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC245APW-Q100/J requirements.

6.How does Aetrix verify that 74LVC245APW-Q100/J is sourced from the original manufacturer or authorized distributors?

All 74LVC245APW-Q100/J products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74LVC245APW-Q100/J meets industry standards.

7.What is the process for return or replacement of 74LVC245APW-Q100/J?

All 74LVC245APW-Q100/J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC245APW-Q100/J, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74LVC245APW-Q100/J part is unused and in its original packaging.

Return procedure for 74LVC245APW-Q100/J:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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