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

NXP Semiconductors 74LVT240PW,112

Name: 74LVT240PW,112
Brand: NXP Semiconductors
SKU: 74LVT240PW,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVT240PW,112

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

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

Description:: IC BUFF INVERT 8BIT 3.6V 20TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74LVT240PW,112 from Nexperia is an octal inverting 3-state buffer/line driver operating at 3.3 V supply, featuring dual independent output enables (1OE, 2OE), ±32 mA/±64 mA drive capability, and 5.5 V-tolerant inputs. It supports mixed-voltage interfacing between 3.3 V logic and 5 V buses, with bus hold circuitry eliminating external pull-ups on unused inputs. Used in high-speed data routing for industrial control backplanes and FPGA I/O expansion.

For engineers reviewing the 74LVT240PW,112 datasheet, 74LVT240PW,112 pinout, 74LVT240PW,112 application, or 74LVT240PW,112 equivalent, key selection criteria include 3-state timing (tPZH ≤ 5.2 ns), overvoltage input tolerance, bus hold current specs (IBHL = 75–150 μA), and TSSOP20 thermal performance under -40 °C to +85 °C operation.

Technical Context

The 74LVT240PW implements BiCMOS logic architecture to achieve high-speed propagation (tPLH/tPHL ≤ 4.3 ns at 3.3 V) while maintaining robust DC drive strength. Its dual 4-bit sections are independently controlled by active-low 1OE and 2OE pins, enabling selective bus isolation without affecting adjacent channels.

IOFF circuitry ensures sub-100 μA power-down leakage when VCC = 0 V, and bus hold functionality maintains valid logic states on floating inputs without external components. Input clamping and ESD protection (HBM > 2000 V, CDM > 1000 V) support live insertion and rugged system integration.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage	2.7 V to 3.6 V - Ensures compatibility with 3.3 V systems while accommodating rail tolerances.
Input voltage range	0 V to 5.5 V - Allows direct connection to 5 V TTL outputs without level shifters.
Output drive (LOW)	+64 mA - Sinks sufficient current to drive heavy capacitive loads or multiple CMOS inputs.
Output drive (HIGH)	-32 mA - Sources current compatible with standard TTL fan-out requirements.
Propagation delay	1.0–4.3 ns - Enables reliable operation in >100 MHz bus environments with tight timing margins.
Bus hold current	±75 to ±150 μA - Maintains stable logic state on unconnected inputs without external resistors.
ESD rating (HBM)	>2000 V - Meets JEDEC JS-001 Class 2 for handling in non-ESD-controlled assembly areas.
Operating temperature	-40 °C to +85 °C - Qualified for industrial ambient conditions without derating.

Pinout & Package

TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, surface-mount compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	1OE, 2OE	Active-low enable controls four outputs each; HIGH forces associated Yn outputs into high-impedance state.
2, 4, 6, 8	1A0–1A3	Inverting data inputs for first 4-bit section; drive corresponding 1Yn outputs.
11, 13, 15, 17	2A0–2A3	Inverting data inputs for second 4-bit section; drive corresponding 2Yn outputs.
18, 16, 14, 12	1Y0–1Y3	Inverted buffered outputs from first section; 3-state controlled by 1OE.
9, 7, 5, 3	2Y0–2Y3	Inverted buffered outputs from second section; 3-state controlled by 2OE.
10	GND	Ground reference for all internal circuitry and I/O signaling.
20	VCC	3.3 V supply input; decoupling capacitor required within 10 mm of pin.

Key Features

Feature	Design Value
BiCMOS process technology	Combines bipolar speed and CMOS low static power for <4.3 ns propagation at 3.3 V.
Dual independent 3-state control	1OE and 2OE allow concurrent or staggered bus arbitration across two 4-bit lanes.
5.5 V-tolerant inputs	Accepts 5 V logic levels directly-no external level translators needed for mixed-supply systems.
Bus hold circuitry	Eliminates need for 10 kΩ pull-up/pull-down resistors on unused inputs, reducing BOM count and board area.
IOFF partial power-down	Leakage <100 μA when VCC = 0 V, enabling safe hot-swap and system-level power sequencing.

Applications

Industrial Backplane Interface

FPGA I/O Expansion

Use Scenario: Routing address/data signals between microcontroller and peripheral cards in modular PLC chassis.

IC Role / Device Role / Timing Role: Inverting 3-state buffer isolating shared bus segments during card insertion/removal.

Use Value: Live insertion support and 5.5 V input tolerance allow seamless integration with legacy 5 V peripherals without redesign.

Use Scenario: Extending LUT I/O count on Xilinx Artix-7 FPGA where native pins are insufficient for sensor array interface.

IC Role / Device Role / Timing Role: Octal inverting driver translating FPGA 3.3 V outputs to higher-current 3.3 V bus signals.

Use Value: ±64 mA sink capability drives 100 pF trace capacitance at 100 MHz without signal integrity loss.

Automated Test Equipment (ATE)

Communications Baseband Board

Use Scenario: Signal conditioning and direction control in boundary-scan test access ports for JTAG daisy chains.

IC Role / Device Role / Timing Role: Bidirectional buffer with precise tPZL/tPHZ (≤5.2 ns) ensuring deterministic test vector timing.

Use Value: Sub-5 ns 3-state transition times meet IEEE 1149.1 setup/hold windows for high-speed scan clocks.

Use Scenario: Level-shifting and buffering between baseband processor and RF transceiver ICs operating at different voltage domains.

IC Role / Device Role / Timing Role: Voltage-tolerant interface managing control lines (RESET, ENABLE) between 3.3 V SoC and 5 V analog front-end.

Use Value: Input overvoltage tolerance eliminates discrete clamp diodes, reducing component count and layout complexity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal inverting 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC240APWR	Lower drive (±24 mA), narrower VCC range (1.65–3.6 V), no bus hold.	Requires external pull-ups on unused inputs; unsuitable for 5 V-tolerant interfaces.	Prefer when cost sensitivity outweighs drive strength and mixed-voltage needs.
74ALVC240PW,118	Same package, lower ICC (0.04 mA vs. 0.12 mA), but no IOFF or bus hold.	Lacks power-down leakage control and floating-input stabilization-requires careful PCB layout.	Select only if system operates exclusively at 3.3 V with fully driven inputs and minimal standby current demand.

Compared with SN74LVC240APWR and 74ALVC240PW,118, the 74LVT240PW,112 delivers superior drive strength, 5.5 V input tolerance, and integrated bus hold-making it optimal for industrial backplanes and mixed-voltage FPGA interconnects where reliability and design simplicity are critical.

Availability

74LVT240PW,112 is available at Aetrix Electronics and suitable for industrial control backplanes, FPGA I/O expansion, automated test equipment, and communications baseband boards requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVT240PW,112 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 and consumer electronics.

The 74LVT series targets high-speed 3.3 V bus interface applications, emphasizing robust mixed-voltage interoperability, low-latency 3-state control, and ruggedness for demanding embedded environments.

FAQ

What is the maximum clock frequency supported by the 74LVT240PW,112?

The device does not operate as a clocked element but supports data rates up to 100 MHz in bus applications, based on its 4.3 ns max propagation delay and 5.2 ns max 3-state transition time under 3.3 V supply and -40 °C to +85 °C conditions. System-level timing must account for trace capacitance and load.

Can the 74LVT240PW,112 be used with a 5 V microcontroller output?

Yes-the inputs are overvoltage tolerant to 5.5 V, allowing direct connection to 5 V TTL outputs without level shifters or clamping diodes. The device operates from 2.7–3.6 V VCC, so output logic levels remain 3.3 V compatible.

Does the 74LVT240PW,112 require external pull-up resistors on unused inputs?

No-integrated bus hold circuitry actively maintains the last-valid logic state on floating inputs, eliminating the need for external pull-up or pull-down resistors. This reduces BOM count and improves noise immunity in high-density layouts.

Is the 74LVT240PW,112 suitable for hot-swap applications?

Yes-it supports live insertion and extraction per datasheet specification, enabled by IOFF circuitry that limits power-off leakage to <100 μA and robust ESD protection (HBM > 2000 V, CDM > 1000 V) meeting JEDEC standards for handling during system maintenance.

74LVT240PW,112 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74LVT

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

Packaging:: Bulk

Product Status:: Active

Logic Type:: Buffer, Inverting

Number of Elements:: 2

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 32mA, 64mA

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-TSSOP

74LVT240PW,112 FAQ

1.How can I place an order for 74LVT240PW,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVT240PW,112 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 74LVT240PW,112 reliable?

The price and inventory of 74LVT240PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT240PW,112 is usually 5 days.

3.What payment methods are accepted for 74LVT240PW,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT240PW,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVT240PW,112?

74LVT240PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVT240PW,112 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 74LVT240PW,112?

For technical support, including 74LVT240PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT240PW,112 requirements.

6.How does Aetrix verify that 74LVT240PW,112 is sourced from the original manufacturer or authorized distributors?

All 74LVT240PW,112 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 74LVT240PW,112 meets industry standards.

7.What is the process for return or replacement of 74LVT240PW,112?

All 74LVT240PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT240PW,112, 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 74LVT240PW,112 part is unused and in its original packaging.

Return procedure for 74LVT240PW,112:

1.Submit a request within 90 days.

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

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