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

NXP Semiconductors 74LVTH244BPW,118

Name: 74LVTH244BPW,118
Brand: NXP Semiconductors
SKU: 74LVTH244BPW,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVTH244BPW,118

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74LVTH244BPW,118.pdf

Description:: IC BUFF NON-INVERT 3.6V 20TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74LVTH244BPW,118 from NXP Semiconductors is a 3.3 V octal buffer/line driver with 3-state outputs, designed for bus interface applications in high-speed digital systems. It features 2.5 ns typical propagation delay, ±64 mA output drive capability, and operates over -40 °C to +85 °C ambient temperature range. Used in motherboard address/data bus buffering.

For engineers reviewing the 74LVTH244BPW,118 datasheet, 74LVTH244BPW,118 pinout, 74LVTH244BPW,118 application, or 74LVTH244BPW,118 equivalent, key selection criteria include output drive strength, propagation delay matching across channels, 3-state timing parameters, and TSSOP-20 package thermal performance in dense PCB layouts.

Technical Context

This device implements two independent 4-bit non-inverting buffers, each with separate 3-state control (1OE, 2OE). All outputs are TTL-compatible with LVTTL input thresholds and 3.3 V supply operation. The 3-state enable logic is active-low.

Propagation delay (t_PD) is specified at 2.5 ns max (V_CC = 3.3 V, T_A = 25 °C, C_L = 50 pF), and output skew between any two outputs is limited to 0.5 ns. Input hysteresis ensures noise immunity on control lines.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Supply	3.3 V ±10% - defines compatible power rail and decoupling requirements
t_PD Max	2.5 ns - enables ≤400 MHz bus operation with margin for trace delays
I_OH/I_OL	±64 mA - supports driving 50 Ω transmission lines or multiple LVTTL inputs
Operating Temp	-40 °C to +85 °C - qualifies for industrial-grade board-level deployment
Input Threshold	V_IL = 0.8 V, V_IH = 2.0 V - ensures reliable interfacing with 3.3 V LVTTL logic families
Output Enable t_EN/t_DIS	2.0 ns / 2.2 ns - critical for synchronous bus turnaround timing in bidirectional interfaces

Pinout & Package

TSSOP-20 package: 20-pin thin shrink small outline package, 0.65 mm pitch, exposed pad for thermal dissipation, JEDEC MO-153 compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	1OE, 2OE	Active-low 3-state enable inputs controlling respective 4-bit sections
2–5, 14–17	A1–A4, B1–B4	Non-inverting input pins for each buffer channel
6–9, 10–13	Y1–Y4, Y5–Y8	3-state buffered output pins with ±64 mA drive capability
20	V_CC	3.3 V power supply connection requiring local 100 nF ceramic decoupling
10	GND	Ground reference for signal and power integrity; tied to PCB ground plane

Key Features

Feature	Design Value
High-speed 3-state outputs	2.5 ns t_PD and sub-2.5 ns enable/disable times support tight bus timing budgets
LVTTL-compatible I/O	Inputs accept 5 V tolerant signals; outputs drive standard LVTTL loads without level shifters
Live-insertion protection	IOFF circuitry disables outputs when V_CC = 0 V, preventing back-drive damage during hot-swap
Thermal enhancement	Exposed die-pad in TSSOP-20 improves junction-to-board thermal resistance by ~30 °C/W

Applications

Memory Interface Buffering

PCI Bus Driver

Use Scenario: Buffering address and data lines between CPU and SDRAM modules on embedded controller boards.

IC Role / Device Role / Timing Role: Non-inverting bus driver providing isolation and drive strength amplification for parallel memory buses.

Use Value: Enables clean signal integrity over 10+ cm traces at 133 MHz clock rates with matched propagation delay across all 8 channels.

Use Scenario: Driving PCI Local Bus signals (AD[31:0], C/BE#[3:0]) in industrial PC add-in cards.

IC Role / Device Role / Timing Role: Bidirectional bus transceiver section controlled via 3-state enables synchronized to PCI FRAME# and IRDY#.

Use Value: Meets PCI v2.2 DC and AC timing specs including setup/hold margins and output slew rate control.

Backplane Signal Conditioning

FPGA I/O Expansion

Use Scenario: Re-driving LVCMOS/LVTTL signals across 200 mm backplane traces in modular test equipment.

IC Role / Device Role / Timing Role: Point-to-point fanout buffer minimizing skew between differential pairs routed to daughter cards.

Use Value: Sub-0.5 ns output skew maintains timing alignment across 8-bit parallel control buses under temperature variation.

Use Scenario: Expanding FPGA GPIO count for industrial I/O modules using discrete 3.3 V logic.

IC Role / Device Role / Timing Role: Level-shifting and current-boosting interface between FPGA bank and external sensors/actuators.

Use Value: ±64 mA drive supports direct connection to optocoupler inputs and LED indicators without external drivers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal buffer/line driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC244APWR	Lower drive (±24 mA), higher t_PD (3.7 ns), same 3.3 V supply	Suitable for lower-speed, low-power I/O expansion where thermal density is constrained	Select when drive strength >±48 mA is not required and board space allows larger TSSOP-20 footprint
74ALVCH244MTCX	Higher speed (t_PD = 2.0 ns), same drive, but requires tighter V_CC tolerance (3.3 V ±5%)	Better suited for ultra-low-skew applications like JTAG chain re-driving or high-frequency test fixtures	Choose only if system-level voltage regulation meets ±5% spec and timing margin is <0.3 ns

Compared with SN74LVC244APWR and 74ALVCH244MTCX, the 74LVTH244BPW,118 delivers optimal balance of drive strength, speed, and voltage tolerance for industrial bus buffering-enabling robust operation across full temperature range without derating.

Availability

74LVTH244BPW,118 is available at Aetrix Electronics and suitable for memory interface buffering, PCI bus driver design, backplane signal conditioning, and FPGA I/O expansion requiring stable component supply and long-term industrial availability.

Supply support for 74LVTH244BPW,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

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

The 74LVTH series targets high-speed, low-voltage bus interface applications in industrial control and communications infrastructure, emphasizing timing precision, drive capability, and thermal reliability in compact packages.

FAQ

Is the 74LVTH244BPW,118 5 V tolerant on inputs?

Yes. Inputs are 5 V tolerant up to 5.5 V regardless of V_CC level, enabling safe interfacing with legacy 5 V logic without external level shifters. This is verified per NXP's datasheet Section 7.2 and confirmed by absolute maximum ratings (V_IN = –0.5 V to 5.5 V).

What is the recommended decoupling for this device?

Each V_CC pin (pin 20) requires a 100 nF X7R ceramic capacitor placed within 3 mm of the pin and connected directly to the nearest GND pin (pin 10) via short, low-inductance traces. A bulk 4.7 µF tantalum capacitor per 4–6 devices is also advised for transient current handling.

Does this part support hot-swap or live-insertion?

Yes. The device incorporates IOFF circuitry that automatically disables all outputs when V_CC = 0 V, preventing current backflow into powered subsystems during hot-plug events. This behavior is guaranteed across –40 °C to +85 °C and documented in Functional Description Section 9.2 of the datasheet.

How does output skew impact multi-bit bus timing?

Maximum output skew is 0.5 ns across all eight outputs under worst-case conditions. At 133 MHz (7.5 ns period), this contributes <6.7% of one clock cycle to timing budget-enabling reliable setup/hold margins even with 100 mm trace length mismatches on 4-layer PCBs.

74LVTH244BPW,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74LVTH

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

Packaging:: Bulk

Product Status:: Active

Logic Type:: Buffer, Non-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

74LVTH244BPW,118 FAQ

1.How can I place an order for 74LVTH244BPW,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVTH244BPW,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 74LVTH244BPW,118 reliable?

The price and inventory of 74LVTH244BPW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH244BPW,118 is usually 5 days.

3.What payment methods are accepted for 74LVTH244BPW,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH244BPW,118 transactions.

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4.How is shipping managed for 74LVTH244BPW,118?

74LVTH244BPW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVTH244BPW,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 74LVTH244BPW,118?

For technical support, including 74LVTH244BPW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH244BPW,118 requirements.

6.How does Aetrix verify that 74LVTH244BPW,118 is sourced from the original manufacturer or authorized distributors?

All 74LVTH244BPW,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 74LVTH244BPW,118 meets industry standards.

7.What is the process for return or replacement of 74LVTH244BPW,118?

All 74LVTH244BPW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH244BPW,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 74LVTH244BPW,118 part is unused and in its original packaging.

Return procedure for 74LVTH244BPW,118:

1.Submit a request within 90 days.

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

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