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

NXP Semiconductors 74LVC2245ADB,118

Name: 74LVC2245ADB,118
Brand: NXP Semiconductors
SKU: 74LVC2245ADB,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVC2245ADB,118

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-SSOP (0.209", 5.30mm Width)

Datasheet:: 74LVC2245ADB,118.pdf

Description:: IC TXRX NON-INVERT 3.6V 20SSOP

Quantity:: RFQ Add To RFQ list

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Inventory:2,460

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Product details

Overview

74LVC2245ADB,118 from Nexperia is an octal 3-state transceiver with integrated 30 Ω series termination resistors, bidirectional data flow controlled by DIR and OE pins, 5 V tolerant I/O, and operation across 1.2 V to 3.6 V supply. It enables level translation between 3.3 V and 5 V domains in bus interface applications such as memory expansion and peripheral interconnects.

For engineers reviewing the 74LVC2245ADB,118 datasheet, 74LVC2245ADB,118 pinout, 74LVC2245ADB,118 application, or 74LVC2245ADB,118 equivalent, key selection criteria include 5 V tolerance on all I/O, IOFF partial power-down protection, Schmitt-trigger inputs for noise immunity, and guaranteed timing performance down to 1.2 V supply.

Technical Context

The device implements dual-bus bidirectional data transfer using a single direction control (DIR) input and active-low output enable (OE). Its IOFF circuitry disables outputs and blocks backflow current when VCC = 0 V, enabling safe hot-insertion in powered-backplane systems.

All inputs feature Schmitt-trigger action with hysteresis ≥0.3 V at VCC = 3.3 V, ensuring robust operation with slow-rising signals. Propagation delay is specified from 1.5 ns (min) to 8.0 ns (max) at VCC = 3.0–3.6 V, supporting high-speed parallel bus operation up to ~125 MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.2 V to 3.6 V - supports low-voltage logic domains while maintaining 5 V I/O tolerance
I/O Voltage Tolerance	Up to 5.5 V - allows direct interfacing with legacy 5 V peripherals without external level shifters
Integrated Termination	30 Ω series resistors per I/O - reduces signal reflections on PCB traces up to 10 cm at 100 Mbps
IOFF Leakage Current	< ±20 μA at VCC = 0 V, VI/VO = 5.5 V - prevents damaging backfeed during partial power-down
Propagation Delay	1.5 ns (min) to 8.0 ns (max) at VCC = 3.0–3.6 V - enables reliable timing closure in 8-bit parallel buses
ESD Protection	HBM > 2000 V, CDM > 1000 V - meets industrial-grade handling requirements without additional protection circuitry
Operating Temperature	−40 °C to +125 °C - qualified for under-hood automotive modules and industrial control cabinets

Pinout & Package

74LVC2245ADB,118 uses the SOT339-1 package (SSOP20), a 20-pin shrink small outline package with 0.65 mm pitch and 7.2 mm body width. Pin numbering follows standard SSOP convention with pin 1 marked by a notch or dot.

Pin/Terminal	Circuit Role	Design Meaning
1 (DIR)	Direction control input	Controls data flow: HIGH = A→B, LOW = B→A; referenced to VCC, not GND
2–9 (A0–A7)	Port A data I/O	8-bit bidirectional bus port with 5 V tolerant inputs and 3-state outputs
10 (GND)	Ground reference	0 V return path for all internal logic and I/O; decoupling capacitor must be placed adjacent
11–18 (B0–B7)	Port B data I/O	8-bit bidirectional bus port mirroring A-side functionality and timing
19 (OE)	Output enable (active LOW)	Drives all A/B outputs into high-impedance state when HIGH; synchronous with DIR
20 (VCC)	Power supply	Single supply input (1.2–3.6 V); requires local 100 nF ceramic decoupling

Key Features

Feature	Design Value
5 V tolerant I/O	Enables mixed-voltage system integration without external translators or voltage clamps
IOFF partial power-down	Prevents reverse current flow when VCC is off, critical for hot-swap and modular backplane designs
Schmitt-trigger inputs	Provides ≥0.3 V hysteresis at 3.3 V, eliminating need for external RC filtering on noisy control lines
Integrated 30 Ω series termination	Reduces PCB layout complexity and cost by eliminating 16 discrete 30 Ω resistors on high-speed traces
JEDEC-compliant voltage ranges	Validated across JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V)

Applications

Memory Expansion Interface

Industrial PLC Backplane

Use Scenario: Connecting a 3.3 V microcontroller to legacy 5 V SRAM or Flash memory chips via parallel address/data bus.

IC Role / Device Role / Timing Role: Bidirectional level-translating transceiver managing data flow direction and bus contention via DIR/OE control.

Use Value: Eliminates need for discrete level shifters and termination resistors, reducing BOM count by 18 components per interface.

Use Scenario: Interfacing multiple 3.3 V I/O modules to a central 5 V controller in a modular programmable logic controller rack.

IC Role / Device Role / Timing Role: Hot-pluggable bus buffer with IOFF protection, isolating powered-down modules from live backplane voltage.

Use Value: Enables safe field replacement of I/O cards without powering down entire system, meeting IEC 61000-4-2 ESD immunity requirements.

Automotive Body Control Module

Test Equipment Digital I/O Card

Use Scenario: Isolating CAN microcontroller GPIOs from 5 V sensor interfaces in under-hood body control units.

IC Role / Device Role / Timing Role: Robust bidirectional translator operating across −40 °C to +125 °C with Schmitt-trigger noise rejection.

Use Value: Guarantees clean signal edges despite engine bay EMI, reducing firmware-level debouncing overhead by >70%.

Use Scenario: Providing configurable 8-bit digital I/O channels on automated test equipment with mixed-voltage DUT support.

IC Role / Device Role / Timing Role: Reconfigurable bus transceiver allowing same hardware to drive 3.3 V or 5 V DUTs via software-controlled DIR/OE.

Use Value: Reduces test fixture redesign cycles by enabling one board design to cover two voltage classes of devices under test.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC2245APWRE4	TSSOP20 package (SOT360-1); identical electrical specs but 4.4 mm body width vs. 7.2 mm SSOP	Better thermal performance (10.0 mW/K derating) and higher density routing; no lead coplanarity risk	Select for space-constrained PCBs where thermal dissipation >300 mW is required
74LVC2245ABQ,115	DHVQFN20 package (SOT764-1); 2.5 × 4.5 mm footprint, exposed thermal pad, no leads	Superior thermal resistance (12.9 mW/K derating above 111 °C); requires solder paste stencil for QFN reflow	Select for high-reliability automotive modules needing <1.0 mm profile and enhanced thermal management

Compared with SN74LVC2245APWRE4 and 74LVC2245ABQ,115, the 74LVC2245ADB,118 offers optimal mechanical robustness and hand-soldering compatibility in SSOP20, making it preferred for prototyping, low-volume industrial controls, and repair-friendly designs where lead visibility and rework access matter.

Availability

74LVC2245ADB,118 is available at Aetrix Electronics and suitable for memory expansion interfaces, industrial PLC backplanes, automotive body control modules, and test equipment digital I/O cards requiring stable component supply across extended temperature and mixed-voltage operation.

Supply support for 74LVC2245ADB,118 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

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74LVC2245A product line delivers advanced bus interface ICs with integrated termination and robust voltage translation, designed specifically for mixed-voltage system interconnects in space- and power-constrained environments.

FAQ

What is the maximum data rate supported by 74LVC2245ADB,118?

The device supports reliable operation up to 125 Mbps in typical configurations, based on its maximum propagation delay of 8.0 ns at VCC = 3.0–3.6 V and 50 pF load. Signal integrity depends on PCB trace length and termination matching; for 10 cm traces, the 30 Ω series resistors suppress ringing effectively below 100 MHz.

Can 74LVC2245ADB,118 operate with VCC = 1.2 V while driving 5 V inputs?

Yes - the 5 V tolerant inputs function correctly at VCC = 1.2 V, accepting VI up to 5.5 V. However, output drive strength degrades significantly below 1.65 V; VOH drops to ≥1.08 V (min) at VCC = 1.2 V, limiting interoperability with 1.8 V receivers unless pull-up biasing is applied.

How does the IOFF feature behave during power sequencing?

When VCC falls below 0.5 V, the IOFF circuit automatically disables all outputs and limits leakage to ≤±20 μA even if 5.5 V is present on any I/O pin. This prevents backfeeding into a partially powered system, satisfying IEC 61000-4-2 Level 4 ESD survivability requirements during hot-swap events.

Is the SSOP20 package (SOT339-1) RoHS and REACH compliant?

Yes - 74LVC2245ADB,118 is manufactured in full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead-free matte tin finish on leads, halogen-free molding compound, and fully traceable material declarations are provided in Nexperia's official compliance documentation.

74LVC2245ADB,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74LVC

Package/Case:: 20-SSOP (0.209", 5.30mm Width)

Packaging:: Bulk

Product Status:: Active

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:: 12mA, 12mA

Voltage - Supply:: 1.2V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-SSOP

74LVC2245ADB,118 FAQ

1.How can I place an order for 74LVC2245ADB,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVC2245ADB,118 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 74LVC2245ADB,118 reliable?

The price and inventory of 74LVC2245ADB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2245ADB,118 is usually 5 days.

3.What payment methods are accepted for 74LVC2245ADB,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2245ADB,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVC2245ADB,118?

74LVC2245ADB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVC2245ADB,118 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 74LVC2245ADB,118?

For technical support, including 74LVC2245ADB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2245ADB,118 requirements.

6.How does Aetrix verify that 74LVC2245ADB,118 is sourced from the original manufacturer or authorized distributors?

All 74LVC2245ADB,118 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 74LVC2245ADB,118 meets industry standards.

7.What is the process for return or replacement of 74LVC2245ADB,118?

All 74LVC2245ADB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2245ADB,118, 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 74LVC2245ADB,118 part is unused and in its original packaging.

Return procedure for 74LVC2245ADB,118:

1.Submit a request within 90 days.

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

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