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

onsemi 74ALVC162244TX

Name: 74ALVC162244TX
Brand: onsemi
SKU: 74ALVC162244TX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVC162244TX

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74ALVC162244TX.pdf

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

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Product details

Overview

74ALVC162244TX from ON Semiconductor is a low-voltage 16-bit non-inverting buffer/line driver with nibble-level 3-STATE control, 3.6V-tolerant I/O, 26Ω integrated output series resistors, and 3.8 ns max propagation delay at 3.3V - used in memory address driving, clock distribution, and bus transceiver applications.

For engineers reviewing the 74ALVC162244TX datasheet, pinout, applications, or equivalent options, key selection criteria include V_CC range (1.65–3.6V), 3.6V I/O tolerance, output impedance matching, 4-channel enable architecture, and TSSOP-48 package compatibility for high-density PCB layouts.

Technical Context

The 74ALVC162244TX implements four independent 4-bit buffers, each controlled by a dedicated active-low OE input (OE1–OE4), enabling selective 4-bit bus segmentation without affecting other nibbles. Its advanced CMOS process delivers high-speed operation while maintaining sub-40 µA quiescent current at 3.6V.

All inputs and outputs tolerate up to 3.6V regardless of V_CC level (1.65–3.6V), supporting mixed-voltage interfacing. The 26Ω on-die series resistor per output reduces ringing and EMI in transmission-line-driven applications such as DDR address buses and clock trees.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65V to 3.6V - enables direct interface with 1.8V, 2.5V, and 3.3V logic domains
I/O Voltage Tolerance	Up to 3.6V - allows safe connection to higher-voltage peripherals without external level shifters
t_PD (max)	3.8 ns at V_CC = 3.3V - supports >260 MHz data rates in address/control paths
Output Series Resistor	26Ω - damps signal reflections on PCB traces up to 15 cm without discrete termination
3-STATE Enable/Disable Time	t_PZH/t_PHZ ≤ 4.3 ns at 3.3V - ensures clean bus turnaround in bidirectional memory interfaces
Input Leakage Current	±5.0 µA max at 3.6V - minimizes loading on high-impedance source drivers
Power-off High-Z	Inputs and outputs remain high-impedance during V_CC = 0 - prevents back-driving in hot-swap systems

Pinout & Package

74ALVC162244TX is packaged in a 48-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1 mm wide, with exposed pad option not specified. Pin assignments follow standard ALVC bus driver layout optimized for signal integrity and thermal dissipation.

Pin/Terminal	Circuit Role	Design Meaning
OEn (OE1–OE4)	Active-low 3-STATE enable	Four independent controls allow dynamic 4-bit bus partitioning; pull-up required for power-up high-Z safety
I0–I15	Buffer inputs	Non-inverting inputs tolerant to 3.6V; compatible with 5V-tolerant microcontroller GPIOs
O0–O15	Buffer outputs	26Ω series resistance integrated per output; eliminates need for 22–33Ω discrete series resistors
V_CC, GND	Power supply pins	Dual V_CC/GND pairs (pins 1/24, 25/48) reduce simultaneous switching noise and improve PSRR

Key Features

Feature	Design Value
Nibble-selectable 3-STATE control	Four OE inputs (OE1–OE4) enable independent 4-bit bus segments - critical for multi-drop memory channel isolation
Integrated 26Ω output series resistors	Eliminates 16 discrete SMT resistors and associated layout area; reduces BOM count and assembly cost
3.6V-tolerant I/O at any V_CC ≥ 1.65V	Enables direct interconnection between 1.8V FPGAs and 3.3V peripheral logic without voltage translators
Live insertion support	Power-off high-impedance behavior prevents bus contention during hot-plug operations in modular backplane systems
JEDEC JED78 latchup immunity	Guarantees robust operation under transient overvoltage conditions in industrial control environments

Applications

Memory Address Driver	Clock Distribution Buffer
Use Scenario: Driving parallel address lines from an SoC to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with per-nibble 3-STATE control isolates address segments during chip select arbitration. Use Value: 26Ω output resistors suppress overshoot on 10+ cm traces; 3.6V I/O tolerance accommodates legacy 3.3V memory parts.	Use Scenario: Distributing a system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs) with matched skew. IC Role / Device Role / Timing Role: Low-skew, low-jitter fanout buffer with controlled edge rate via integrated series resistance. Use Value: 3.8 ns max t_PD and <100 ps channel-to-channel skew ensure setup/hold timing margins across 16 loads.
Bus Transceiver Interface	Low-Voltage FPGA I/O Expansion
Use Scenario: Bidirectional data path buffering between a 1.8V microcontroller and 3.3V legacy peripherals (e.g., UART, SPI flash). IC Role / Device Role / Timing Role: Unidirectional buffer stage with 3.6V-tolerant inputs/outputs used in half-duplex bus isolation. Use Value: Eliminates external level shifters; 26Ω resistors dampen reflections caused by impedance mismatch between controller and peripheral traces.	Use Scenario: Expanding I/O count of a 1.8V FPGA by connecting additional parallel peripherals (e.g., LCD controllers, sensor arrays). IC Role / Device Role / Timing Role: Voltage-compatible buffer providing drive strength and noise suppression for FPGA bank expansion. Use Value: Sub-40 µA ICC enables low-power standby; 3.6V I/O tolerance safely interfaces with 3.3V display modules.

Memory Address Driver

Clock Distribution Buffer

Use Scenario: Driving parallel address lines from an SoC to multiple SRAM or Flash devices on a shared bus.

IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with per-nibble 3-STATE control isolates address segments during chip select arbitration.

Use Value: 26Ω output resistors suppress overshoot on 10+ cm traces; 3.6V I/O tolerance accommodates legacy 3.3V memory parts.

Use Scenario: Distributing a system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs) with matched skew.

IC Role / Device Role / Timing Role: Low-skew, low-jitter fanout buffer with controlled edge rate via integrated series resistance.

Use Value: 3.8 ns max t_PD and <100 ps channel-to-channel skew ensure setup/hold timing margins across 16 loads.

Bus Transceiver Interface

Low-Voltage FPGA I/O Expansion

Use Scenario: Bidirectional data path buffering between a 1.8V microcontroller and 3.3V legacy peripherals (e.g., UART, SPI flash).

IC Role / Device Role / Timing Role: Unidirectional buffer stage with 3.6V-tolerant inputs/outputs used in half-duplex bus isolation.

Use Value: Eliminates external level shifters; 26Ω resistors dampen reflections caused by impedance mismatch between controller and peripheral traces.

Use Scenario: Expanding I/O count of a 1.8V FPGA by connecting additional parallel peripherals (e.g., LCD controllers, sensor arrays).

IC Role / Device Role / Timing Role: Voltage-compatible buffer providing drive strength and noise suppression for FPGA bank expansion.

Use Value: Sub-40 µA ICC enables low-power standby; 3.6V I/O tolerance safely interfaces with 3.3V display modules.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74ALVC162244DGGR	Same functional spec, identical pinout, TI-manufactured TSSOP-48 variant	No difference in bus driving, memory addressing, or clock fanout use cases	Select when dual-sourcing or TI-aligned BOM requirements apply
74LVC162244ADGG	LVC family: lower drive strength (24mA vs 32mA), no integrated 26Ω resistors, 3.3V max I/O tolerance	Not suitable for 3.6V-tolerant or reflection-damped applications; requires external termination	Choose only if cost sensitivity outweighs EMI control and mixed-voltage needs

Compared with SN74ALVC162244DGGR and 74LVC162244ADGG, the 74ALVC162244TX provides guaranteed 3.6V I/O tolerance and built-in 26Ω damping - critical for noise-sensitive memory and clock routing where external resistors increase layout complexity and cost.

Availability

74ALVC162244TX is available at Aetrix Electronics and suitable for memory subsystem design, clock tree distribution, and industrial bus interface applications requiring stable component supply across extended temperature ranges (−40°C to +85°C).

Supply support for 74ALVC162244TX 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 energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, cloud, and consumer markets.

The 74ALVC162244TX belongs to ON Semiconductor's advanced low-voltage logic portfolio, designed specifically for high-speed, low-noise digital interfacing in space-constrained and mixed-voltage embedded systems.

FAQ

What is the operating voltage range for the 74ALVC162244TX?

The 74ALVC162244TX operates from 1.65V to 3.6V on V_CC, with all inputs and outputs rated for 3.6V tolerance regardless of supply voltage. This allows interoperability between 1.8V, 2.5V, and 3.3V logic families without level-shifting circuitry - a key feature confirmed in the Fairchild DS500696 datasheet and maintained post-ON Semiconductor integration.

Does the 74ALVC162244TX include integrated series resistors, and what is their value?

Yes, the 74ALVC162244TX integrates a 26Ω series resistor in each of its 16 outputs, as explicitly stated in the device's general description and functional specifications. This resistor reduces line noise and signal reflections in memory address drivers, clock distribution networks, and bus transceivers - eliminating the need for 16 discrete 22–33Ω SMT resistors in typical implementations.

How many independent 3-STATE control inputs does the 74ALVC162244TX have?

The 74ALVC162244TX has four independent active-low 3-STATE enable inputs: OE1, OE2, OE3, and OE4. Each controls a 4-bit nibble (I0–I3/O0–O3, etc.), allowing segmented bus control. This architecture is documented in the truth tables and pin descriptions of the original Fairchild DS500696 datasheet and remains unchanged in the ON Semiconductor product line.

What package type is used for the 74ALVC162244TX, and is it RoHS compliant?

The 74ALVC162244TX uses the 48-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1 mm wide, with ordering code suffix "X" indicating tape-and-reel packaging. While the original datasheet does not explicitly state RoHS status, ON Semiconductor confirms RoHS compliance for all current-production ALVC logic devices including the 74ALVC162244TX per their corporate compliance documentation.

Can the 74ALVC162244TX be used in hot-swap or live-insertion applications?

Yes, the 74ALVC162244TX supports live insertion and withdrawal due to its power-off high-impedance inputs and outputs - a feature explicitly listed under "Features" in the DS500696 datasheet. When V_CC = 0V, all I/Os enter a high-Z state, preventing bus contention during hot-plug events in modular backplanes or field-replaceable units.

74ALVC162244TX Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74ALVC

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:: 1.65V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

74ALVC162244TX FAQ

1.How can I place an order for 74ALVC162244TX through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVC162244TX 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 74ALVC162244TX reliable?

The price and inventory of 74ALVC162244TX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC162244TX is usually 5 days.

3.What payment methods are accepted for 74ALVC162244TX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC162244TX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ALVC162244TX?

74ALVC162244TX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVC162244TX 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 74ALVC162244TX?

For technical support, including 74ALVC162244TX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC162244TX requirements.

6.How does Aetrix verify that 74ALVC162244TX is sourced from the original manufacturer or authorized distributors?

All 74ALVC162244TX 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 74ALVC162244TX meets industry standards.

7.What is the process for return or replacement of 74ALVC162244TX?

All 74ALVC162244TX units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC162244TX, 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 74ALVC162244TX part is unused and in its original packaging.

Return procedure for 74ALVC162244TX:

1.Submit a request within 90 days.

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

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