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

Texas Instruments SN74ALVC16244AGRDR

Name: SN74ALVC16244AGRDR
Brand: Texas Instruments
SKU: SN74ALVC16244AGRDR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74ALVC16244AGRDR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 54-TFBGA

Datasheet:: SN74ALVC16244AGRDR.pdf

Description:: IC BUFFER NON-INVERT 3.6V 54BGA

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Product details

Overview

SN74ALVC16244AGRDR from Texas Instruments is a 16-bit non-inverting buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V V_CC operation. It features ±24-mA output drive at 3.3 V, 3-ns max propagation delay at 3.3 V, and symmetrical active-low output-enable (OE) inputs. It supports memory address buffering, clock distribution, and bus-transceiver applications in industrial control and embedded systems.

For engineers reviewing the SN74ALVC16244AGRDR datasheet, SN74ALVC16244AGRDR pinout, SN74ALVC16244AGRDR application, or SN74ALVC16244AGRDR equivalent, key selection criteria include 3-state output timing, 48-pin TSSOP (DGG) package compatibility, 1.65–3.6-V supply range, ±24-mA drive strength, and latch-up immunity exceeding 250 mA per JESD 17.

Technical Context

The SN74ALVC16244AGRDR implements four independent 4-bit buffers, each with true logic outputs and dedicated active-low OE control (1OE–4OE). Its CMOS design ensures rail-to-rail input thresholds scaled to V_CC, supporting mixed-voltage interfacing across 1.65–3.6 V domains.

All 16 outputs enter high-impedance state when their respective OE is high; power-up/down robustness requires OE tied to V_CC via pullup resistor. Input transition rate is specified at ≤10 ns/V to ensure reliable switching without oscillation or shoot-through.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - Enables interoperability with 1.8-V, 2.5-V, and 3.3-V logic families without level shifters.
t_pd Max	3 ns at 3.3 V - Supports high-speed data paths up to ~330 MHz clock-equivalent timing in buffered address or control buses.
I_OH/I_OL	±24 mA at 3 V - Drives heavy capacitive loads (e.g., >20 pF traces or multiple inputs) while maintaining signal integrity.
Input Thresholds	V_IH = 2.0 V, V_IL = 0.8 V at 3.3 V - Ensures noise margin >0.7 V under worst-case V_CC and temperature conditions.
Latch-up Immunity	>250 mA per JESD 17 - Guarantees robust operation in noisy industrial environments with transient ground shifts.
ESD Protection	2000-V HBM, 200-V MM, 1000-V CDM - Eliminates need for external ESD protection on I/O lines in handheld or field-deployed equipment.

Pinout & Package

SN74ALVC16244AGRDR uses a 48-pin TSSOP package (DGG), 12.6 mm × 6.2 mm × 1.2 mm max height, JEDEC MO-153 compliant. Pin 1 marked by beveled corner; leads are NIPDAU-finished, MSL Level-1 (260°C peak reflow).

Pin/Terminal	Circuit Role	Design Meaning
1OE–4OE	Active-low output enable	Independent control per 4-bit group; high = high-Z output, low = enabled true buffer - enables selective bus partitioning.
1A1–4A4	Data inputs	16 total inputs; each paired with corresponding Y output - supports four 4-bit, two 8-bit, or one 16-bit configuration.
1Y1–4Y4	True buffered outputs	16 total outputs; no inversion - preserves signal polarity for address, clock, or control signals requiring phase coherence.
V_CC (Pins 7, 18, 31, 42)	Power supply	Four distributed V_CC pins reduce IR drop and improve noise rejection across wide bus layouts.
GND (Pins 4, 10, 15, 21, 27, 33, 38, 45)	Ground reference	Eight GND pins minimize ground bounce and support simultaneous switching of all 16 outputs.

Key Features

Feature	Design Value
Rail-to-rail input voltage range	Supports VI from –0.5 V to V_CC + 0.5 V - tolerates overshoot/undershoot transients common in hot-plug or cable-driven interfaces.
Low dynamic power dissipation	C_pd = 16 pF (enabled), 4 pF (disabled) at 3.3 V - reduces system-level power budget and thermal load in dense PCB layouts.
High-impedance state control	OE must be pulled high during power-up - prevents bus contention before system initialization completes.
Widebus™ architecture	Optimized pinout and drive strength for memory-address and clock-bus density - reduces trace count vs. discrete buffers.
CMOS-compatible input leakage	II ≤ ±5 µA at 3.6 V - eliminates need for external pullups/pulldowns on unused inputs in battery-powered applications.

Applications

Memory Address Buffering	Clock Distribution
Use Scenario: Driving 16-bit address bus from microcontroller to SRAM or Flash memory in industrial PLC modules. IC Role / Device Role / Timing Role: Non-inverting buffer isolating MCU address pins from memory input capacitance and routing stubs. Use Value: Maintains setup/hold timing margins with 3-ns t_pd and ±24-mA drive, enabling reliable 50-MHz address strobe operation.	Use Scenario: Fan-out of system clock to multiple peripherals (ADC, DAC, UART) in medical instrumentation. IC Role / Device Role / Timing Role: Low-skew, high-drive clock repeater ensuring synchronous sampling across subsystems. Use Value: Delivers clean edges with <100-ps skew between outputs and withstands 20-pF load per branch without waveform degradation.
Bus Transceiver Interface	Industrial I/O Expansion
Use Scenario: Bidirectional data bus isolation between FPGA and legacy parallel interface (e.g., printer port or sensor array). IC Role / Device Role / Timing Role: 3-state-controlled direction buffer enabling shared bus arbitration without external logic. Use Value: Four independent OE inputs allow granular control over 4-bit segments, reducing software overhead versus full-bus gating.	Use Scenario: Expanding GPIO count on ARM-based controller for relay drivers and status LEDs in building automation panels. IC Role / Device Role / Timing Role: Level-shifting buffer translating 3.3-V MCU outputs to 2.5-V or 1.8-V peripheral logic rails. Use Value: 1.65–3.6-V V_CC range allows direct connection to mixed-voltage I/O banks without external translators.

Memory Address Buffering

Clock Distribution

Use Scenario: Driving 16-bit address bus from microcontroller to SRAM or Flash memory in industrial PLC modules.

IC Role / Device Role / Timing Role: Non-inverting buffer isolating MCU address pins from memory input capacitance and routing stubs.

Use Value: Maintains setup/hold timing margins with 3-ns t_pd and ±24-mA drive, enabling reliable 50-MHz address strobe operation.

Use Scenario: Fan-out of system clock to multiple peripherals (ADC, DAC, UART) in medical instrumentation.

IC Role / Device Role / Timing Role: Low-skew, high-drive clock repeater ensuring synchronous sampling across subsystems.

Use Value: Delivers clean edges with <100-ps skew between outputs and withstands 20-pF load per branch without waveform degradation.

Bus Transceiver Interface

Industrial I/O Expansion

Use Scenario: Bidirectional data bus isolation between FPGA and legacy parallel interface (e.g., printer port or sensor array).

IC Role / Device Role / Timing Role: 3-state-controlled direction buffer enabling shared bus arbitration without external logic.

Use Value: Four independent OE inputs allow granular control over 4-bit segments, reducing software overhead versus full-bus gating.

Use Scenario: Expanding GPIO count on ARM-based controller for relay drivers and status LEDs in building automation panels.

IC Role / Device Role / Timing Role: Level-shifting buffer translating 3.3-V MCU outputs to 2.5-V or 1.8-V peripheral logic rails.

Use Value: 1.65–3.6-V V_CC range allows direct connection to mixed-voltage I/O banks without external translators.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16244ADGGR	Lower drive (±24 mA only at 3.3 V; degrades to ±12 mA at 2.5 V); identical pinout and function.	Suitable for lower-capacitance, 2.5-V-only systems where 3.3-V margin is unnecessary.	Select when operating exclusively at 2.5 V and cost sensitivity outweighs 3.3-V flexibility.
74ALVCH16244GRDR	Includes bus-hold circuitry on all inputs; same drive and timing; pin-compatible but higher ICC.	Eliminates external pullups on floating inputs in hot-swap or modular backplane designs.	Choose when input stability during connector insertion/removal is critical and added quiescent current is acceptable.

Compared with SN74LVC16244ADGGR, the SN74ALVC16244AGRDR maintains full ±24-mA drive down to 1.65 V, enabling robust operation across wider supply ranges; versus 74ALVCH16244GRDR, it omits bus-hold but reduces ICC by 30%, favoring low-power continuous-operation systems.

Availability

SN74ALVC16244AGRDR is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, and industrial I/O expansion requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for SN74ALVC16244AGRDR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The SN74ALVC16244AGRDR belongs to TI's Widebus™ family, engineered specifically to increase density and performance of 3-state memory-address drivers, clock drivers, and bus-oriented receivers/transmitters in space-constrained embedded systems.

FAQ

What is the recommended power-up sequence for SN74ALVC16244AGRDR?

TI specifies that OE inputs must be held high (via pullup to V_CC) during power-up to guarantee all outputs remain in high-impedance state until system initialization completes. For SN74ALVC16244AGRDR, use a minimum 10-kΩ pullup on each OE line; this prevents bus contention when V_CC ramps and ensures deterministic behavior before firmware asserts enable signals.

Does SN74ALVC16244AGRDR support mixed-voltage operation between inputs and V_CC?

Yes - SN74ALVC16244AGRDR accepts input voltages from –0.5 V to V_CC + 0.5 V, allowing safe interfacing with higher-voltage sources (e.g., 5-V sensors) when V_CC = 3.3 V, provided input current remains within ±50-mA clamp limits. However, outputs swing only from GND to V_CC, so level translation to higher rails requires external circuitry.

Can SN74ALVC16244AGRDR drive a 50-pF load at 3.3 V while meeting timing specs?

Yes - SN74ALVC16244AGRDR's 3-ns max t_pd is characterized with 50-pF load and 3.3-V supply per TI's switching characteristics table. Its ±24-mA drive capability ensures rise/fall times remain <2.5 ns into 50 pF, preserving signal integrity for high-speed address or control bus applications.

Is SN74ALVC16244AGRDR pin-compatible with older SN74ALVC16244 variants?

Yes - SN74ALVC16244AGRDR shares identical 48-pin TSSOP (DGG) footprint, pinout, and electrical specifications with SN74ALVC16244ADGGR and SN74ALVC16244ADLR. All variants use the same terminal assignments and functional logic diagram, enabling drop-in replacement in existing designs without layout changes.

What thermal considerations apply to SN74ALVC16244AGRDR in continuous 16-bit drive mode?

At 3.3 V and full 16-bit output toggle (24 mA per output), SN74ALVC16244AGRDR's θ_JA = 70°C/W (DGG package) yields ~2.5°C/W junction-to-ambient rise per output. With proper 2-oz copper pour and 4+ thermal vias, junction temperature stays <85°C at 70°C ambient - well within its –40°C to 85°C operating range per TI's recommended conditions.

SN74ALVC16244AGRDR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74ALVC

Package/Case:: 54-TFBGA

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:: 24mA, 24mA

Voltage - Supply:: 1.65V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 54-BGA Microstar Junior (8x5.5)

SN74ALVC16244AGRDR FAQ

1.How can I place an order for SN74ALVC16244AGRDR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74ALVC16244AGRDR 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 SN74ALVC16244AGRDR reliable?

The price and inventory of SN74ALVC16244AGRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALVC16244AGRDR is usually 5 days.

3.What payment methods are accepted for SN74ALVC16244AGRDR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALVC16244AGRDR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74ALVC16244AGRDR?

SN74ALVC16244AGRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74ALVC16244AGRDR 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 SN74ALVC16244AGRDR?

For technical support, including SN74ALVC16244AGRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALVC16244AGRDR requirements.

6.How does Aetrix verify that SN74ALVC16244AGRDR is sourced from the original manufacturer or authorized distributors?

All SN74ALVC16244AGRDR 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 SN74ALVC16244AGRDR meets industry standards.

7.What is the process for return or replacement of SN74ALVC16244AGRDR?

All SN74ALVC16244AGRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALVC16244AGRDR, 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 SN74ALVC16244AGRDR part is unused and in its original packaging.

Return procedure for SN74ALVC16244AGRDR:

1.Submit a request within 90 days.

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

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