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

onsemi 74LVT162244MTDX

Name: 74LVT162244MTDX
Brand: onsemi
SKU: 74LVT162244MTDX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVT162244MTDX

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-TFSOP (0.240", 6.10mm Width)

Datasheet:: 74LVT162244MTDX.pdf

Description:: IC BUF NON-INVERT 3.6V 48TSSOP

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Product details

Overview

74LVT162244 from ON Semiconductor is a low-voltage 16-bit non-inverting buffer/line driver with 3-STATE outputs, designed for memory and address bus driving in 3.3V systems interfacing to 5V TTL environments. It features 25Ω series output resistance (in both HIGH and LOW states), nibble-level 3-STATE control (OE1–OE4), and BiCMOS fabrication enabling ABT-class speed at reduced power. Used in high-noise-sensitive clock distribution and parallel bus transceivers.

For engineers reviewing the 74LVT162244 datasheet, pinout, applications, or equivalent options, key selection criteria include its 25Ω integrated output termination, 3.3V supply operation with 5V-tolerant I/O, nibble-selectable 3-STATE control, and compatibility with legacy 74-series 162244 logic families in mixed-voltage backplanes.

Technical Context

The 74LVT162244 implements sixteen independent non-inverting buffers, each with 3-STATE output controlled via four dedicated active-low enable inputs (OE1–OE4), allowing 4-bit nibble granularity. Its BiCMOS process delivers propagation delays as low as 1.2 ns (tPHL, VCC = 3.3V) while maintaining low ICCZ (0.19 mA) in disabled state.

Each output integrates matched 25Ω series resistance in both logic states-eliminating need for external termination resistors and reducing overshoot/undershoot on transmission lines. Input voltage range extends to 5.5V, enabling safe interfacing with 5V TTL signals without level shifters.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Supply Range	2.7V to 3.6V - Operates reliably across industrial 3.3V rail tolerances without requiring regulation beyond standard LVT logic specs.
IOH/IOL Drive	±12 mA - Sufficient to drive standard 50Ω transmission lines or fan-out to ≥10 LVTTL loads without external buffering.
tPLH/tPHL Max	4.8 ns @ VCC = 2.7V - Enables >200 MHz bus operation in short-line applications with tight timing budgets.
Output Series R	25Ω (equivalent) - Integrated termination eliminates PCB space and BOM cost for discrete 25Ω resistors per line.
VI Input Range	0V to 5.5V - Supports direct connection to 5V TTL outputs without clamping diodes or level translators.
ICCZ Disabled Current	0.19 mA @ VCC = 3.6V - Minimizes standby power in large-scale bus systems with many idle drivers.
Operating Temp	−40°C to +85°C - Qualified for industrial temperature environments including base station backplanes and industrial controllers.

Pinout & Package

74LVT162244 is packaged in a 48-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, 6.1 mm wide, with 0.5 mm lead pitch. Pin assignments are identical for TSSOP (MTD48) and SSOP (MS48A) variants.

Pin/Terminal	Circuit Role	Design Meaning
O0–O15	Buffered Outputs	Non-inverting outputs with integrated 25Ω series resistance; each independently controllable via OE1–OE4 groups.
I0–I15	Data Inputs	5V-tolerant CMOS inputs; accept 0–5.5V logic levels while powered from 3.3V supply.
OE1–OE4	Active-Low Enable Inputs	Four independent enables controlling nibbles O0–O3, O4–O7, O8–O11, O12–O15 respectively; shorting enables full 16-bit operation.
VCC	Power Supply	3.3V core supply pin; decoupling required within 1 cm for noise-sensitive high-speed operation.
GND	Ground Reference	Dual ground pins (pins 24 & 48) reduce ground bounce in multi-output switching events.

Key Features

Feature	Design Value
25Ω Output Series Resistance	Reduces signal reflections and ringing on unterminated PCB traces up to 10 cm, eliminating need for 32 discrete termination resistors in 16-bit bus designs.
5V-Tolerant Inputs	Enables direct interface to legacy 5V TTL logic without external level-shifting circuitry or risk of input overvoltage damage.
Nibble-Controlled 3-STATE	Allows partial bus isolation (e.g., disable only address nibble 2 while keeping data nibbles active), improving system-level power management granularity.
Live Insertion/Extraction Support	Power-up/power-down high-impedance behavior prevents bus contention during hot-swap operations in modular backplane systems.
LVT Logic Compatibility	Functionally and electrically compatible with industry-standard 74LVT162244 family, ensuring drop-in replacement in existing designs using same package footprint.

Applications

Memory Address Bus Driver	Clock Distribution Buffer
Use Scenario: Driving 16-bit address lines from a 3.3V microcontroller to multiple 5V SRAM chips on a shared bus. IC Role / Device Role / Timing Role: Non-inverting voltage-level translating buffer with 25Ω output impedance matching trace characteristic impedance. Use Value: Eliminates external termination resistors and prevents address skew between bits, ensuring setup/hold compliance across all 16 lines.	Use Scenario: Distributing a 50 MHz system clock from a 3.3V PLL to eight 5V FPGA clock inputs across a 6-layer PCB. IC Role / Device Role / Timing Role: Low-skew, terminated line driver minimizing clock edge distortion and inter-channel jitter. Use Value: Achieves <1.0 ns output-to-output skew (tOSLH/tOSHL), preserving clock integrity without adding layout complexity for discrete terminations.
Parallel Data Bus Transceiver	Industrial Backplane Interface
Use Scenario: Bidirectional 16-bit data path between a 3.3V ARM processor and legacy 5V peripheral ASIC in an embedded controller. IC Role / Device Role / Timing Role: Direction-controlled bus driver with fast enable/disable (tPZH/tPHZ ≤ 6.5 ns) and glitch-free power sequencing. Use Value: Enables clean bus turn-around with no hold-time violations, even when OE signals are asynchronously asserted.	Use Scenario: Interfacing modular I/O cards to a 3.3V host controller in an industrial PLC rack with mixed-voltage modules. IC Role / Device Role / Timing Role: Robust, ESD-hardened (HBM >2000V) bus driver supporting live insertion and hot-swap compliance. Use Value: Prevents bus glitches during card insertion/removal and withstands harsh factory EMI environments without latch-up (≥500 mA).

Memory Address Bus Driver

Clock Distribution Buffer

Use Scenario: Driving 16-bit address lines from a 3.3V microcontroller to multiple 5V SRAM chips on a shared bus.

IC Role / Device Role / Timing Role: Non-inverting voltage-level translating buffer with 25Ω output impedance matching trace characteristic impedance.

Use Value: Eliminates external termination resistors and prevents address skew between bits, ensuring setup/hold compliance across all 16 lines.

Use Scenario: Distributing a 50 MHz system clock from a 3.3V PLL to eight 5V FPGA clock inputs across a 6-layer PCB.

IC Role / Device Role / Timing Role: Low-skew, terminated line driver minimizing clock edge distortion and inter-channel jitter.

Use Value: Achieves <1.0 ns output-to-output skew (tOSLH/tOSHL), preserving clock integrity without adding layout complexity for discrete terminations.

Parallel Data Bus Transceiver

Industrial Backplane Interface

Use Scenario: Bidirectional 16-bit data path between a 3.3V ARM processor and legacy 5V peripheral ASIC in an embedded controller.

IC Role / Device Role / Timing Role: Direction-controlled bus driver with fast enable/disable (tPZH/tPHZ ≤ 6.5 ns) and glitch-free power sequencing.

Use Value: Enables clean bus turn-around with no hold-time violations, even when OE signals are asynchronously asserted.

Use Scenario: Interfacing modular I/O cards to a 3.3V host controller in an industrial PLC rack with mixed-voltage modules.

IC Role / Device Role / Timing Role: Robust, ESD-hardened (HBM >2000V) bus driver supporting live insertion and hot-swap compliance.

Use Value: Prevents bus glitches during card insertion/removal and withstands harsh factory EMI environments without latch-up (≥500 mA).

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit buffer/driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC162244ADGGR	No integrated 25Ω output resistance; requires external termination; lower drive (±24 mA); 1.65–3.6V VCC range.	Suitable for lower-speed (<100 MHz), shorter-trace applications where board space allows discrete resistors.	Prefer when cost sensitivity outweighs layout simplification and signal integrity requirements.
74ALVT162244MTD	Higher speed (tPHL ≤ 2.8 ns @ 3.3V); same 25Ω output resistance; higher ICCZ (0.35 mA); identical pinout and voltage specs.	Better suited for high-frequency clock distribution (>150 MHz) where propagation delay budget is critical.	Select when timing margin is constrained and additional 0.16 mA standby current is acceptable.

Compared with SN74LVC162244ADGGR and 74ALVT162244MTD, the 74LVT162244 uniquely balances integrated termination, industrial temperature support, and proven reliability in legacy backplane designs-making it optimal for cost-sensitive, noise-critical 3.3V-to-5V bridging where layout simplicity and signal fidelity are prioritized over maximum speed.

Availability

74LVT162244 is available at Aetrix Electronics and suitable for memory address driving, clock distribution, parallel bus transceivers, and industrial backplane interfaces requiring stable component supply and long-term obsolescence management.

Supply support for 74LVT162244 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

ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, sensor, and logic solutions for automotive, industrial, and cloud infrastructure markets.

The 74LVT162244 belongs to ON Semiconductor's legacy LVT logic family, engineered for robust 3.3V/5V mixed-signal interfacing in industrial control and communications equipment where signal integrity and long-term supply stability are essential.

FAQ

Is the 74LVT162244 still in active production?

No-the 74LVT162244 is marked DISCONTINUED and NOT RECOMMENDED FOR NEW DESIGN per ON Semiconductor's official documentation. However, Aetrix Electronics maintains strategic inventory and offers extended lifecycle support, including traceable legacy stock and cross-reference engineering guidance for migration paths.

Does the 74LVT162244 require external pull-up resistors on unused inputs?

No-the 74LVT162244 does not include bushold circuitry (unlike the LVTH variant), so unused inputs must be externally tied to VCC or GND to prevent floating states. This is confirmed by the datasheet's feature comparison and absence of II(HOLD) specifications for the LVT version.

What is the function of the 25Ω series resistance in the 74LVT162244 outputs?

The 25Ω equivalent series resistance in the 74LVT162244 outputs dampens signal reflections on PCB traces by approximating common transmission line impedances (e.g., 50Ω differential pairs). It reduces overshoot and undershoot without requiring discrete resistors, directly improving signal integrity in point-to-point or stubbed bus topologies.

Can the 74LVT162244 safely interface with 5V logic inputs?

Yes-the 74LVT162244 inputs tolerate up to 5.5V regardless of VCC (2.7–3.6V), making it safe to receive signals from standard 5V TTL outputs. This is explicitly specified in the DC Electrical Characteristics table under "VI Input Voltage" and validated by the 5V-compatible logic symbol and application notes.

What package options are available for the 74LVT162244?

The 74LVT162244 is offered in two surface-mount packages: 48-lead TSSOP (MTD48) and 48-lead SSOP (MS48A), both JEDEC-compliant with identical pinouts. The FBGA variant (BGA54A) applies only to the LVTH version-not the 74LVT162244-and is not available for this part number.

74LVT162244MTDX Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74LVT

Package/Case:: 48-TFSOP (0.240", 6.10mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 4

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 12mA, 12mA

Voltage - Supply:: 2.7V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

74LVT162244MTDX FAQ

1.How can I place an order for 74LVT162244MTDX through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVT162244MTDX 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 74LVT162244MTDX reliable?

The price and inventory of 74LVT162244MTDX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT162244MTDX is usually 5 days.

3.What payment methods are accepted for 74LVT162244MTDX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT162244MTDX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVT162244MTDX?

74LVT162244MTDX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVT162244MTDX 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 74LVT162244MTDX?

For technical support, including 74LVT162244MTDX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT162244MTDX requirements.

6.How does Aetrix verify that 74LVT162244MTDX is sourced from the original manufacturer or authorized distributors?

All 74LVT162244MTDX 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 74LVT162244MTDX meets industry standards.

7.What is the process for return or replacement of 74LVT162244MTDX?

All 74LVT162244MTDX units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT162244MTDX, 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 74LVT162244MTDX part is unused and in its original packaging.

Return procedure for 74LVT162244MTDX:

1.Submit a request within 90 days.

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

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