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

Texas Instruments SN74ALVCH162244DGG

Name: SN74ALVCH162244DGG
Brand: Texas Instruments
SKU: SN74ALVCH162244DGG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74ALVCH162244DGG

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: SN74ALVCH162244DGG.pdf

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

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Product details

Overview

SN74ALVCH162244 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 symmetrical active-low output-enable (OE) inputs, bus-hold circuitry on all data inputs, and integrated 26-Ω series output resistors to suppress overshoot/undershoot - enabling direct connection to transmission lines in memory address, clock, and bus-oriented systems.

For engineers reviewing the SN74ALVCH162244 datasheet, SN74ALVCH162244 pinout, SN74ALVCH162244 application, or SN74ALVCH162244 equivalent, key selection considerations include its 48-pin TSSOP (DGG) package, -40°C to 85°C industrial temperature range, 12-mA sink capability per output, bus-hold input retention, and compatibility with mixed-voltage system interfacing across 1.65–3.6 V logic domains.

Technical Context

This device implements four independent 4-bit buffer sections, each with true (noninverting) output logic and dedicated active-low OE control. Each section's outputs enter high-impedance state when its OE is high, and drive low or high when OE is low - supporting flexible partitioning as four 4-bit, two 8-bit, or one 16-bit buffer configuration.

It uses TI's EPIC™ submicron CMOS process and integrates bus-hold circuitry on all A-inputs to maintain valid logic levels without external pullup/pulldown resistors. Output drivers include built-in 26-Ω series termination, eliminating need for discrete series resistors while ensuring clean signal integrity at up to 12 mA sink current per Y-output.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - supports mixed-voltage I/O interfacing across modern low-voltage logic families.
Output Drive	±12 mA per Y-output - sufficient to drive standard 50-Ω transmission lines or multiple CMOS loads without external buffers.
Bus-Hold Current	±75 µA at 3 V - actively retains floating input states, removing need for external biasing components.
Propagation Delay	4.2 ns typical at V_CC = 2.7 V - enables high-speed address or clock buffering in DDR, FPGA, and microcontroller peripheral buses.
Input Voltage Thresholds	V_IL = 0.8 V, V_IH = 2.0 V at V_CC = 3.3 V - ensures robust noise margin and compatibility with LVTTL and ALVC logic levels.
ESD Rating	>2000 V HBM - meets MIL-STD-883 Class 3015 requirements for handling and board-level reliability.
Operating Temperature	-40°C to +85°C - qualified for industrial-grade embedded and communications equipment deployment.

Pinout & Package

TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm body, 0.5-mm lead pitch, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low output-enable control	Each independently enables/disables its corresponding 4-bit buffer section; tied high for high-Z default during power-up.
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Data inputs	All feature integrated bus-hold circuitry - prevents floating states and eliminates external pull resistors.
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	True (noninverting) buffered outputs	Each includes 26-Ω series resistor - reduces ringing and simplifies PCB layout for point-to-point or stub-bus topologies.
V_CC (Pins 7, 20, 33, 46)	Power supply	Four distributed V_CC pins minimize IR drop and improve noise immunity across wide 16-bit bus.
GND (Pins 4, 10, 15, 27, 32, 44)	Ground reference	Six GND pins provide low-inductance return paths and support simultaneous switching noise (SSN) mitigation.

Key Features

Feature	Design Value
Integrated 26-Ω output series resistors	Eliminates need for 16 discrete SMT resistors - reduces BOM count, PCB area, and layout complexity for high-speed bus termination.
Bus-hold on all 16 data inputs	Maintains last-valid logic state on unused or unterminated inputs - prevents metastability and system lockup in hot-plug or partial-configuration scenarios.
Wide V_CC range (1.65 V to 3.6 V)	Enables direct interface between 1.8-V, 2.5-V, and 3.3-V subsystems without level shifters - simplifies voltage-domain bridging in SoC/FPGA carrier boards.
Four independent OE controls	Allows selective enable/disable of 4-bit segments - supports dynamic bus segmentation, power-gating per peripheral group, and partial bus isolation.
EPIC™ submicron CMOS process	Delivers low propagation delay (4.2 ns typ), low ICC (40 µA max), and high latch-up immunity (>250 mA) - suitable for dense, low-power embedded designs.

Applications

Memory Address Buffering	Clock Distribution
Use Scenario: Driving address lines from an MCU or FPGA to multiple parallel SRAM or Flash devices in a shared bus architecture. IC Role / Device Role / Timing Role: 16-bit noninverting buffer isolating controller address outputs from capacitive bus loading and crosstalk. Use Value: Integrated 26-Ω output resistors suppress reflections on 50-Ω traces; bus-hold prevents undefined states during reset or standby.	Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADCs, DACs, timers) with matched trace lengths. IC Role / Device Role / Timing Role: Low-skew, fanout buffer replicating clock signal with minimal added jitter and controlled edge rates. Use Value: 4.2 ns typical t_pd and symmetrical rise/fall times ensure tight skew control; 12-mA drive supports ≥10 pF load per output.
Bus Transceiver Interface	FPGA I/O Expansion
Use Scenario: Interfacing a 3.3-V microcontroller to legacy 2.5-V or 1.8-V peripheral ICs via a shared data bus. IC Role / Device Role / Timing Role: Voltage-tolerant bidirectional buffer enabling level translation without direction control logic. Use Value: 1.65–3.6-V V_CC range allows safe operation with mixed-supply peripherals; true outputs simplify control timing.	Use Scenario: Expanding limited FPGA I/O pins to drive external LEDs, switches, or sensor interfaces on a custom carrier board. IC Role / Device Role / Timing Role: General-purpose digital I/O expander with configurable 4-bit segment enables and robust input retention. Use Value: Bus-hold eliminates pull resistors on 16 inputs; independent OE pins allow dynamic grouping of I/O banks for power sequencing.

Memory Address Buffering

Clock Distribution

Use Scenario: Driving address lines from an MCU or FPGA to multiple parallel SRAM or Flash devices in a shared bus architecture.

IC Role / Device Role / Timing Role: 16-bit noninverting buffer isolating controller address outputs from capacitive bus loading and crosstalk.

Use Value: Integrated 26-Ω output resistors suppress reflections on 50-Ω traces; bus-hold prevents undefined states during reset or standby.

Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADCs, DACs, timers) with matched trace lengths.

IC Role / Device Role / Timing Role: Low-skew, fanout buffer replicating clock signal with minimal added jitter and controlled edge rates.

Use Value: 4.2 ns typical t_pd and symmetrical rise/fall times ensure tight skew control; 12-mA drive supports ≥10 pF load per output.

Bus Transceiver Interface

FPGA I/O Expansion

Use Scenario: Interfacing a 3.3-V microcontroller to legacy 2.5-V or 1.8-V peripheral ICs via a shared data bus.

IC Role / Device Role / Timing Role: Voltage-tolerant bidirectional buffer enabling level translation without direction control logic.

Use Value: 1.65–3.6-V V_CC range allows safe operation with mixed-supply peripherals; true outputs simplify control timing.

Use Scenario: Expanding limited FPGA I/O pins to drive external LEDs, switches, or sensor interfaces on a custom carrier board.

IC Role / Device Role / Timing Role: General-purpose digital I/O expander with configurable 4-bit segment enables and robust input retention.

Use Value: Bus-hold eliminates pull resistors on 16 inputs; independent OE pins allow dynamic grouping of I/O banks for power sequencing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC162244ADGGR	Lower drive strength (8 mA vs. 12 mA); no integrated 26-Ω resistors; identical bus-hold and V_CC range.	Better suited for lower-capacitance loads or cost-sensitive designs where external termination is acceptable.	Select when reduced output drive and absence of internal series resistors align with target trace impedance and layout constraints.
74ALVCH162244TTR	Same electrical specs but in TSSOP-48 with different marking and tape-and-reel packaging (2000/reel vs. 40/tube); identical thermal and reliability specs.	No functional difference - used interchangeably where reel-fed automated assembly is required.	Choose for high-volume SMT production requiring tape-and-reel delivery; electrically and mechanically identical to SN74ALVCH162244DGG.

Compared with SN74ALVCH162244DGG, the SN74LVC162244ADGGR offers lower cost and power but requires external termination and delivers less drive; the 74ALVCH162244TTR provides identical performance in a production-optimized packaging format - making it ideal for automated placement without design change.

Availability

SN74ALVCH162244 is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, FPGA I/O expansion, and industrial bus interface applications requiring stable component supply and long-term industrial temperature support.

Supply support for SN74ALVCH162244 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 decades of experience in high-reliability industrial and automotive IC design.

The SN74ALVCH162244 belongs to TI's Widebus™ family of high-density, high-speed logic devices - engineered specifically to improve performance and reduce board space in memory address drivers, clock trees, and bus-oriented transceivers.

FAQ

What is the recommended power-up sequence for SN74ALVCH162244 to avoid bus contention?

TI recommends tying all OE inputs to V_CC through a pullup resistor (minimum value determined by driver sink capability) during power-up. This ensures all outputs remain in high-impedance state until system firmware asserts valid OE control. The SN74ALVCH162244 does not require strict V_CC/OE sequencing, but holding OE high at power-on prevents unintended driving onto shared buses - a critical requirement in multi-master memory or peripheral systems using the SN74ALVCH162244.

Does SN74ALVCH162244 support hot-swap or live-insertion applications?

The SN74ALVCH162244 includes bus-hold circuitry on all 16 data inputs and is rated for ESD >2000 V HBM, but it lacks explicit hot-swap protection features such as power-good detection, slew-rate controlled outputs, or back-drive tolerance. While its 26-Ω series resistors help limit current during partial insertion, TI does not characterize or guarantee safe operation during live insertion. For true hot-swap applications, dedicated hot-swap controllers or buffers with I_off protection (e.g., SN74AVC16T245) are recommended instead of relying solely on SN74ALVCH162244.

Can SN74ALVCH162244 be used as a level shifter between 1.8-V and 3.3-V logic domains?

Yes - the SN74ALVCH162244 operates from 1.65 V to 3.6 V and accepts input voltages down to 0 V and up to V_CC, making it suitable for unidirectional level shifting. When powered at 3.3 V, it reliably interprets 1.8-V inputs as logic high (V_IH = 2.0 V at V_CC = 3.3 V), and its 3.3-V outputs are compatible with 3.3-V receivers. However, it is not bidirectional; for true bidirectional translation, a dedicated level shifter like SN74AVC16T245 is required instead of SN74ALVCH162244.

What is the maximum capacitive load each output of SN74ALVCH162244 can drive reliably?

Per TI's switching characteristics data, the SN74ALVCH162244 maintains specified t_pd, t_en, and t_dis performance up to 50 pF load capacitance (tested with CL = 50 pF in Figure 3). Its 26-Ω integrated series resistor provides optimal damping for typical PCB trace impedances (~50 Ω), allowing reliable operation into loads ranging from 10 pF (short local traces) to 50 pF (longer routed nets or multiple fanouts). Exceeding 50 pF may increase rise/fall times and degrade timing margins - verify with actual layout simulation when using SN74ALVCH162244 in high-capacitance environments.

How does the bus-hold feature behave when an input is driven externally while enabled?

The bus-hold circuitry in SN74ALVCH162244 acts only when the input is floating or weakly biased - it does not interfere with actively driven signals. When an external source (e.g., MCU GPIO or another buffer) applies a valid logic high or low voltage within the V_IH/V_IL thresholds, the bus-hold current (±75 µA max) is overpowered and the input follows the driven state without conflict. Bus-hold engages only when external drive is removed or falls below the hold threshold - ensuring glitch-free operation during normal use and fail-safe behavior during disconnection, reset, or tri-state conditions on the SN74ALVCH162244 inputs.

SN74ALVCH162244DGG Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74ALVCH

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

Packaging:: Bulk

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 ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

SN74ALVCH162244DGG FAQ

1.How can I place an order for SN74ALVCH162244DGG through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74ALVCH162244DGG 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 SN74ALVCH162244DGG reliable?

The price and inventory of SN74ALVCH162244DGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALVCH162244DGG is usually 5 days.

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Once your SN74ALVCH162244DGG 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 SN74ALVCH162244DGG?

For technical support, including SN74ALVCH162244DGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALVCH162244DGG requirements.

6.How does Aetrix verify that SN74ALVCH162244DGG is sourced from the original manufacturer or authorized distributors?

All SN74ALVCH162244DGG 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 SN74ALVCH162244DGG meets industry standards.

7.What is the process for return or replacement of SN74ALVCH162244DGG?

All SN74ALVCH162244DGG units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALVCH162244DGG, 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 SN74ALVCH162244DGG part is unused and in its original packaging.

Return procedure for SN74ALVCH162244DGG:

1.Submit a request within 90 days.

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

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