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

Texas Instruments SN74LVCH162244ADLR

Name: SN74LVCH162244ADLR
Brand: Texas Instruments
SKU: SN74LVCH162244ADLR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVCH162244ADLR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: SN74LVCH162244ADLR.pdf

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

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Product details

Overview

SN74LVCH162244ADLR from Texas Instruments is a 16-bit noninverting buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V V_CC operation. It features four independent 4-bit sections, each with active-low output-enable (OE) control, 5.5-V-tolerant inputs, bus-hold circuitry, and I_off support for live insertion-enabling use in mixed-voltage server memory address buffering and industrial I/O expansion.

For engineers reviewing the SN74LVCH162244ADLR datasheet, SN74LVCH162244ADLR pinout, SN74LVCH162244ADLR application, or SN74LVCH162244ADLR equivalent, key selection criteria include its 4.4 ns max propagation delay at 3.3 V, integrated 26-Ω output series resistance eliminating external termination, and guaranteed operation across –40°C to 125°C ambient temperature.

Technical Context

This device implements true (noninverting) logic buffering with symmetrical active-low OE inputs per 4-bit group, supporting flexible partitioning as one 16-bit, two 8-bit, or four independent 4-bit buffers. Its I_off protection disables outputs when V_CC = 0 V, preventing back-drive current during partial power-down.

Bus-hold circuitry actively maintains valid logic states on undriven inputs without external resistors, while 5.5-V input tolerance enables direct interfacing with 5-V logic in 3.3-V systems-critical for voltage translation in legacy-compatible embedded controllers and telecom baseband interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - Enables single-supply operation in modern low-voltage digital systems including DDR memory interfaces and FPGA I/O banks.
Max t_pd	4.4 ns at V_CC = 3.3 V - Supports high-speed data routing in server memory subsystems with sub-5 ns timing budgets.
Input Voltage Tolerance	Up to 5.5 V - Allows direct connection to 5-V microcontrollers or legacy peripherals without level-shifting components.
Output Series Resistance	26 Ω typical - Provides inherent impedance matching to reduce signal reflections on PCB traces up to 10 cm long.
I_off Support	Yes - Enables hot-plug capability and prevents destructive current flow during power sequencing in modular industrial backplanes.
Operating Temperature	–40°C to +125°C - Qualified for under-hood automotive ECUs and industrial motor drive control modules.
Bus-Hold	Integrated on all inputs - Eliminates need for external pull-up/pull-down resistors, reducing BOM count and board space in space-constrained IoT edge nodes.

Pinout & Package

SN74LVCH162244ADLR is packaged in a 48-pin SSOP (DL) with 0.635 mm pitch, 15.88 mm × 7.49 mm body size, and RoHS-compliant NiPdAu lead finish. The package supports standard reflow profiles (MSL Level-1, 260°C peak).

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low output enable	Independently controls 4-bit output groups; must be pulled high via resistor during power-up to ensure 3-state default.
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Input	16 total data inputs; accept 0–5.5 V signals regardless of V_CC, enabling mixed-voltage system integration.
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	3-state buffered output	Noninverting outputs with 26-Ω series resistance; drive loads up to ±12 mA per pin at 3.3 V.
V_CC (Pins 7, 18, 31, 42)	Power supply	Four dedicated V_CC pins minimize IR drop and improve noise immunity across wide bus widths.
GND (Pins 4, 10, 15, 21, 28, 34, 39, 45)	Ground	Eight GND pins provide low-inductance return paths, critical for maintaining signal integrity in high-speed parallel buses.

Key Features

Feature	Design Value
Wide V_CC range	1.65 V to 3.6 V operation supports compatibility with both 1.8-V and 3.3-V logic families in heterogeneous SoC interconnects.
5.5-V tolerant inputs	Enables direct interface with 5-V sensors or legacy microcontrollers without external level shifters in industrial gateway designs.
I_off protection	Prevents current backflow when V_CC = 0 V, allowing safe insertion into powered-backplane systems like modular PLC I/O carriers.
Integrated bus-hold	Maintains stable logic state on floating inputs-reducing debug time and eliminating 32 external resistors in 16-bit address/data bus applications.
26-Ω output series resistance	Provides source termination for controlled-impedance trace routing, minimizing overshoot/ringing on FR-4 PCBs up to 100 MHz.

Applications

Server Memory Address Buffering	Industrial I/O Expansion Module
Use Scenario: Driving 16-bit address lines from a CPU to multiple DDR SDRAM banks in a rack-mounted server motherboard. IC Role / Device Role / Timing Role: Noninverting buffer with 3-state outputs isolates CPU address bus during memory bank switching; OE pins synchronized to chip-select signals. Use Value: 4.4 ns max t_pd ensures setup/hold timing margins are maintained across temperature, while 26-Ω outputs suppress ringing on 8-cm address traces.	Use Scenario: Expanding GPIO count of an ARM-based PLC controller to drive 16 relay coils and read 16 sensor inputs via optocouplers. IC Role / Device Role / Timing Role: Bidirectional buffer sectioned into four 4-bit groups-each controlled by separate OE for staggered activation of isolated I/O banks. Use Value: 5.5-V input tolerance accepts 5-V optocoupler outputs directly; bus-hold eliminates pull-up resistors on unused sensor lines.
Telecom Baseband Interface	Automotive ADAS Camera Link
Use Scenario: Interfacing a 3.3-V FPGA to legacy 5-V line cards in wireless infrastructure baseband units. IC Role / Device Role / Timing Role: Voltage-translating buffer between FPGA I/O banks and backplane connectors; OE tied to FPGA reset for fail-safe isolation. Use Value: I_off prevents back-driving during FPGA configuration; 125°C rating supports operation near RF power amplifiers.	Use Scenario: Routing 16-bit parallel image data from a CMOS image sensor to an automotive-grade SoC in a surround-view camera ECU. IC Role / Device Role / Timing Role: High-speed data driver with precise skew control across all 16 bits; V_CC decoupled per quadrant to suppress switching noise. Use Value: Guaranteed –40°C to +125°C operation meets AEC-Q100 Grade 2 requirements; low ground bounce (<0.8 V) preserves analog sensor reference stability.

Server Memory Address Buffering

Industrial I/O Expansion Module

Use Scenario: Driving 16-bit address lines from a CPU to multiple DDR SDRAM banks in a rack-mounted server motherboard.

IC Role / Device Role / Timing Role: Noninverting buffer with 3-state outputs isolates CPU address bus during memory bank switching; OE pins synchronized to chip-select signals.

Use Value: 4.4 ns max t_pd ensures setup/hold timing margins are maintained across temperature, while 26-Ω outputs suppress ringing on 8-cm address traces.

Use Scenario: Expanding GPIO count of an ARM-based PLC controller to drive 16 relay coils and read 16 sensor inputs via optocouplers.

IC Role / Device Role / Timing Role: Bidirectional buffer sectioned into four 4-bit groups-each controlled by separate OE for staggered activation of isolated I/O banks.

Use Value: 5.5-V input tolerance accepts 5-V optocoupler outputs directly; bus-hold eliminates pull-up resistors on unused sensor lines.

Telecom Baseband Interface

Automotive ADAS Camera Link

Use Scenario: Interfacing a 3.3-V FPGA to legacy 5-V line cards in wireless infrastructure baseband units.

IC Role / Device Role / Timing Role: Voltage-translating buffer between FPGA I/O banks and backplane connectors; OE tied to FPGA reset for fail-safe isolation.

Use Value: I_off prevents back-driving during FPGA configuration; 125°C rating supports operation near RF power amplifiers.

Use Scenario: Routing 16-bit parallel image data from a CMOS image sensor to an automotive-grade SoC in a surround-view camera ECU.

IC Role / Device Role / Timing Role: High-speed data driver with precise skew control across all 16 bits; V_CC decoupled per quadrant to suppress switching noise.

Use Value: Guaranteed –40°C to +125°C operation meets AEC-Q100 Grade 2 requirements; low ground bounce (<0.8 V) preserves analog sensor reference stability.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16244ADLR	Lacks bus-hold and I_off; 5-V tolerant inputs only up to V_CC + 0.5 V.	Suitable for fixed 3.3-V-only systems without hot-swap or floating-input concerns.	Select when cost sensitivity outweighs need for bus-hold or live-insertion support.
SN74AVC16T245DGGR	Bidirectional with auto-direction sensing; higher drive strength (±24 mA); no built-in bus-hold.	Required for bidirectional data buses (e.g., shared memory interfaces), not unidirectional buffering.	Choose only if direction control complexity and higher power consumption are acceptable trade-offs for bidirectional capability.

Compared with SN74LVC16244ADLR and SN74AVC16T245DGGR, the SN74LVCH162244ADLR uniquely combines bus-hold, I_off, and 5.5-V input tolerance in a unidirectional 16-bit buffer-making it optimal for robust, mixed-voltage industrial and telecom interfaces where input stability and power sequencing safety are mandatory.

Availability

SN74LVCH162244ADLR is available at Aetrix Electronics and suitable for server memory subsystems, industrial PLC I/O expansion, telecom baseband interfaces, and automotive ADAS camera links requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74LVCH162244ADLR 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 leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in high-reliability interface and power management ICs.

The SN74LVCH162244ADLR belongs to TI's Widebus™ family of advanced logic devices, engineered specifically to enhance density and performance of 3-state memory address drivers, clock distribution networks, and bus-oriented receivers in high-speed computing and communications infrastructure.

FAQ

What is the maximum operating temperature for SN74LVCH162244ADLR?

The SN74LVCH162244ADLR is rated for continuous operation from –40°C to +125°C ambient temperature. This specification is validated per JEDEC JESD78 and applies to all package variants including the SSOP (DL) version SN74LVCH162244ADLR, making it suitable for under-hood automotive and industrial environments where thermal stress is critical.

Does SN74LVCH162244ADLR support hot-plug insertion?

Yes, SN74LVCH162244ADLR supports hot-plug insertion via its I_off feature, which disables all outputs when V_CC = 0 V and prevents damaging current backflow. This behavior is tested per JESD78 and allows safe insertion into powered backplanes-common in modular server and telecom chassis designs.

Can SN74LVCH162244ADLR interface directly with 5-V logic inputs?

Yes, SN74LVCH162244ADLR accepts input voltages up to 5.5 V regardless of V_CC level (1.65 V to 3.6 V), enabling direct connection to 5-V microcontrollers, sensors, or legacy peripherals without external level shifters-verified in TI's SCAS545L datasheet Section 7.3.

How does the bus-hold feature work on SN74LVCH162244ADLR?

The bus-hold circuitry on SN74LVCH162244ADLR actively maintains the last-valid logic state on any undriven input pin using weak feedback transistors. This eliminates the need for external pull-up or pull-down resistors, reducing BOM cost and PCB area-confirmed in Section 9.1 of the official datasheet.

What is the purpose of the four separate OE pins on SN74LVCH162244ADLR?

The four active-low OE pins (1OE–4OE) independently control the 3-state outputs of four 4-bit sections, enabling selective bus isolation. For example, in a 16-bit memory address driver, each OE can be tied to a different chip-select signal-allowing concurrent access to multiple memory banks without contention.

SN74LVCH162244ADLR 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:: Active

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

SN74LVCH162244ADLR FAQ

1.How can I place an order for SN74LVCH162244ADLR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVCH162244ADLR 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 SN74LVCH162244ADLR reliable?

The price and inventory of SN74LVCH162244ADLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVCH162244ADLR is usually 5 days.

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SN74LVCH162244ADLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVCH162244ADLR 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 SN74LVCH162244ADLR?

For technical support, including SN74LVCH162244ADLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVCH162244ADLR requirements.

6.How does Aetrix verify that SN74LVCH162244ADLR is sourced from the original manufacturer or authorized distributors?

All SN74LVCH162244ADLR 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 SN74LVCH162244ADLR meets industry standards.

7.What is the process for return or replacement of SN74LVCH162244ADLR?

All SN74LVCH162244ADLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVCH162244ADLR, 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 SN74LVCH162244ADLR part is unused and in its original packaging.

Return procedure for SN74LVCH162244ADLR:

1.Submit a request within 90 days.

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

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