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

Texas Instruments 74LVCH162244ADLRG4

Name: 74LVCH162244ADLRG4
Brand: Texas Instruments
SKU: 74LVCH162244ADLRG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVCH162244ADLRG4

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-BSSOP (0.295", 7.50mm Width)

Datasheet:: 74LVCH162244ADLRG4.pdf

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

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Product details

Overview

74LVCH162244ADLRG4 from Texas Instruments is a 16-bit noninverting 3-state buffer/driver with four independent 4-bit sections, operating from 1.65 V to 3.6 V, featuring 5.5-V-tolerant inputs, 26-Ω output series resistance, and I_off support for live insertion - used in server memory address buffering and mixed-voltage bus interfacing.

For engineers reviewing the 74LVCH162244ADLRG4 datasheet, 74LVCH162244ADLRG4 pinout, 74LVCH162244ADLRG4 application, or 74LVCH162244ADLRG4 equivalent, key selection criteria include V_CC range compatibility (1.65–3.6 V), 4.4 ns max propagation delay at 3.3 V, bus-hold on all inputs, and TSSOP-48 package mechanical fit in high-density PCB layouts.

Technical Context

This device implements four independent 4-bit noninverting buffers, each controlled by an active-low output-enable (OE) input. All inputs tolerate up to 5.5 V regardless of V_CC, enabling down-translation from 5-V logic to 3.3-V systems without external level shifters.

Each output features integrated 26-Ω series termination to suppress signal reflections, eliminating need for external resistors. The I_off circuitry ensures outputs remain high-impedance and back-drive protected when V_CC = 0 V, supporting partial-power-down operation in hot-swap applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - supports single-supply operation across low-voltage logic families including 1.8-V, 2.5-V, and 3.3-V systems.
Max t_pd	4.4 ns at V_CC = 3.3 V - enables reliable timing in high-speed address/data bus applications up to ~200 MHz.
Input Voltage Tolerance	Up to 5.5 V - allows direct interface with legacy 5-V peripherals without external voltage translation.
Output Series Resistance	26 Ω typical - provides inherent source termination, reducing PCB routing complexity and EMI from transmission-line effects.
I_off	±10 μA max at V_CC = 0 V - prevents damaging current flow during live insertion or system power sequencing.
Bus-Hold Current	±45 μA at V_CC = 2.3 V - maintains valid logic state on unused inputs, eliminating need for external pullup/pulldown resistors.
ESD Rating	2000-V HBM, 1000-V CDM - meets industrial-grade robustness requirements for assembly and field operation.

Pinout & Package

TSSOP-48 package (DGG), body size 12.50 mm × 6.10 mm, 0.5-mm pitch, lead finish NiPdAu, MSL Level-1, RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low output enable	Individually controls 4-bit output groups; tied high via pullup for power-up high-Z safety.
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Buffer input	16 total inputs; 5.5-V tolerant, with bus-hold to prevent floating states.
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	Noninverting 3-state output	16 total outputs; integrated 26-Ω series resistance reduces signal integrity risk.
V_CC (Pins 7, 18, 31, 42)	Power supply	Four dedicated V_CC pins improve power distribution and reduce switching noise coupling.
GND (Pins 4, 10, 15, 21, 28, 34, 39, 45)	Ground reference	Eight GND pins provide low-inductance return paths for high-speed switching currents.

Key Features

Feature	Design Value
Mixed-mode signal operation	5-V input tolerance with 3.3-V V_CC enables seamless integration into heterogeneous voltage-domain systems.
Integrated 26-Ω output series resistance	Eliminates need for eight external source termination resistors in 16-bit bus designs, saving board space and BOM cost.
Bus-hold on all data inputs	Maintains stable logic levels on unconnected or unterminated inputs, removing requirement for 16 external pullup resistors.
I_off partial-power-down protection	Prevents back-current flow when V_CC is off, allowing safe insertion into powered-backplane systems.
Low ground bounce (V_OLP < 0.8 V)	Reduces digital noise coupling into analog sections and improves signal integrity in mixed-signal PCBs.

Applications

Server Memory Address Buffering	Industrial PLC I/O Expansion
Use Scenario: Driving parallel address lines from a 3.3-V microcontroller to multiple DDR SDRAM modules operating at 2.5-V or 1.8-V. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing level translation, fanout amplification, and bus isolation between controller and memory banks. Use Value: 5.5-V-tolerant inputs accept 3.3-V signals while V_CC = 2.5 V, and 4.4 ns t_pd ensures setup/hold timing margins for >200-MHz address strobes.	Use Scenario: Interfacing a 3.3-V FPGA I/O bank to legacy 5-V industrial sensors and actuators via parallel control buses. IC Role / Device Role / Timing Role: Bidirectional voltage translator and bus driver enabling interoperability between modern low-voltage logic and legacy 5-V field devices. Use Value: I_off protection allows hot-swap replacement of I/O modules without powering down the main controller, minimizing system downtime.
Network Switch Backplane Interface	Automotive Infotainment Display Driver
Use Scenario: Isolating and driving control signals between line-card ASICs and switch fabric controllers in modular Ethernet switches. IC Role / Device Role / Timing Role: 16-bit 3-state buffer with per-group OE enabling dynamic bus partitioning and fault containment across backplane segments. Use Value: Four independent OE pins allow selective disabling of bus sections during diagnostics or failover, improving system reliability and debug visibility.	Use Scenario: Buffering RGB and control signals from a 3.3-V display processor to a 5-V TFT-LCD panel with integrated timing controller. IC Role / Device Role / Timing Role: Level-translating driver delivering clean, terminated video clock and data signals to minimize skew and jitter. Use Value: Integrated 26-Ω output resistance matches typical 50-Ω trace impedance, reducing overshoot/ringing on 25-MHz pixel clocks without discrete termination.

Server Memory Address Buffering

Industrial PLC I/O Expansion

Use Scenario: Driving parallel address lines from a 3.3-V microcontroller to multiple DDR SDRAM modules operating at 2.5-V or 1.8-V.

IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing level translation, fanout amplification, and bus isolation between controller and memory banks.

Use Value: 5.5-V-tolerant inputs accept 3.3-V signals while V_CC = 2.5 V, and 4.4 ns t_pd ensures setup/hold timing margins for >200-MHz address strobes.

Use Scenario: Interfacing a 3.3-V FPGA I/O bank to legacy 5-V industrial sensors and actuators via parallel control buses.

IC Role / Device Role / Timing Role: Bidirectional voltage translator and bus driver enabling interoperability between modern low-voltage logic and legacy 5-V field devices.

Use Value: I_off protection allows hot-swap replacement of I/O modules without powering down the main controller, minimizing system downtime.

Network Switch Backplane Interface

Automotive Infotainment Display Driver

Use Scenario: Isolating and driving control signals between line-card ASICs and switch fabric controllers in modular Ethernet switches.

IC Role / Device Role / Timing Role: 16-bit 3-state buffer with per-group OE enabling dynamic bus partitioning and fault containment across backplane segments.

Use Value: Four independent OE pins allow selective disabling of bus sections during diagnostics or failover, improving system reliability and debug visibility.

Use Scenario: Buffering RGB and control signals from a 3.3-V display processor to a 5-V TFT-LCD panel with integrated timing controller.

IC Role / Device Role / Timing Role: Level-translating driver delivering clean, terminated video clock and data signals to minimize skew and jitter.

Use Value: Integrated 26-Ω output resistance matches typical 50-Ω trace impedance, reducing overshoot/ringing on 25-MHz pixel clocks without discrete termination.

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
SN74LVC162244ADL	No bus-hold; requires external pullup/pulldown resistors on unused inputs; identical V_CC range and pinout.	Suitable only where all inputs are actively driven; not recommended for systems with undriven or intermittently connected buses.	Select when BOM cost reduction outweighs design flexibility; verify all 16 inputs are guaranteed driven in final layout.
74ALVCH162244GR	Wider V_CC range (1.65–3.6 V same), but higher I_CC (100 μA vs. 20 μA typical) and no I_off support.	Not suitable for hot-swap or partial-power-down systems; limited to always-on applications with stable supply sequencing.	Choose only if lower propagation delay (<3.8 ns) is critical and power sequencing is fully controlled.

Compared with SN74LVC162244ADL and 74ALVCH162244GR, the 74LVCH162244ADLRG4 uniquely combines bus-hold, I_off, and 5.5-V input tolerance in a single TSSOP-48 package - making it the only option for robust, mixed-voltage, hot-pluggable designs without external support components.

Availability

74LVCH162244ADLRG4 is available at Aetrix Electronics and suitable for server memory buffering, industrial PLC I/O expansion, and network switch backplane interfacing requiring stable component supply and long-term industrial temperature support (–40°C to 125°C).

Supply support for 74LVCH162244ADLRG4 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

Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and logic ICs, with leadership in industrial, automotive, and communications markets.

The SN74LVCH162244A product line targets high-density, mixed-voltage bus interface applications - designed specifically to replace discrete resistor networks and level translators in memory, clock, and data-path subsystems.

FAQ

What is the maximum operating temperature range for the 74LVCH162244ADLRG4?

The 74LVCH162244ADLRG4 is rated for operation from –40°C to +125°C ambient temperature, meeting industrial and extended-temperature requirements for deployment in servers, telecom infrastructure, and automotive under-hood control modules where thermal stress is significant.

Does the 74LVCH162244ADLRG4 support hot-swap insertion?

Yes, the 74LVCH162244ADLRG4 supports hot-swap insertion via its I_off feature, which disables outputs and blocks current backflow when V_CC = 0 V - ensuring safe connection to a live backplane without damaging the device or system.

Can the 74LVCH162244ADLRG4 drive 5-V logic inputs while powered from 3.3 V?

Yes, the 74LVCH162244ADLRG4 outputs swing rail-to-rail (V_OH ≥ 3.1 V, V_OL ≤ 0.55 V at V_CC = 3.3 V, I_OL = 12 mA), satisfying 5-V TTL input thresholds (V_IH ≥ 2.0 V, V_IL ≤ 0.8 V), enabling direct interface without level-shifting circuitry.

How many independent output-enable controls does the 74LVCH162244ADLRG4 provide?

The 74LVCH162244ADLRG4 provides four independent active-low output-enable inputs (1OE, 2OE, 3OE, 4OE), each controlling a distinct 4-bit output group - enabling flexible bus segmentation, power gating, and fault isolation in multi-channel systems.

Is external termination required for the 74LVCH162244ADLRG4 outputs?

No, external termination is not required. Each output incorporates a typical 26-Ω series resistor, matching common PCB trace impedances and suppressing reflections - eliminating eight discrete resistors in a full 16-bit implementation and simplifying layout.

74LVCH162244ADLRG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVCH

Package/Case:: 48-BSSOP (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

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 ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-SSOP

74LVCH162244ADLRG4 FAQ

1.How can I place an order for 74LVCH162244ADLRG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVCH162244ADLRG4 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 74LVCH162244ADLRG4 reliable?

The price and inventory of 74LVCH162244ADLRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH162244ADLRG4 is usually 5 days.

3.What payment methods are accepted for 74LVCH162244ADLRG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH162244ADLRG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVCH162244ADLRG4?

74LVCH162244ADLRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVCH162244ADLRG4 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 74LVCH162244ADLRG4?

For technical support, including 74LVCH162244ADLRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH162244ADLRG4 requirements.

6.How does Aetrix verify that 74LVCH162244ADLRG4 is sourced from the original manufacturer or authorized distributors?

All 74LVCH162244ADLRG4 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 74LVCH162244ADLRG4 meets industry standards.

7.What is the process for return or replacement of 74LVCH162244ADLRG4?

All 74LVCH162244ADLRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH162244ADLRG4, 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 74LVCH162244ADLRG4 part is unused and in its original packaging.

Return procedure for 74LVCH162244ADLRG4:

1.Submit a request within 90 days.

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

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