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

Texas Instruments SN74LVCZ16244ADGVR

Name: SN74LVCZ16244ADGVR
Brand: Texas Instruments
SKU: SN74LVCZ16244ADGVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVCZ16244ADGVR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-TFSOP (0.173", 4.40mm Width)

Datasheet:: SN74LVCZ16244ADGVR.pdf

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

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Product details

Overview

SN74LVCZ16244ADGVR from Texas Instruments is a 16-bit non-inverting buffer/driver with 3-state outputs, designed for 2.7 V to 3.6 V V_CC operation. It supports mixed-mode signal operation (5-V inputs with 3.3-V V_CC), delivers 4.1 ns max propagation delay at 3.3 V, and features I_off and power-up 3-state for hot-insertion in memory address, clock, and bus driver applications.

For engineers reviewing the SN74LVCZ16244ADGVR datasheet, SN74LVCZ16244ADGVR pinout, SN74LVCZ16244ADGVR application, or SN74LVCZ16244ADGVR equivalent, key selection criteria include 3.3-V supply compatibility, 5-V tolerant inputs, 48-pin TVSOP package thermal performance (θ_JA = 58°C/W), and guaranteed high-impedance behavior during power transitions.

Technical Context

This device implements four independent 4-bit buffered channels, each with dedicated output-enable (OE) control. Each channel provides true (non-inverted) logic translation and supports simultaneous 3.3-V/5-V interface bridging via input voltage tolerance up to 5.5 V while operating from a 3.3-V supply.

The architecture integrates I_off circuitry that disables outputs when V_CC = 0 V to prevent backflow current, and power-up 3-state logic that forces outputs into high-impedance during V_CC ramping between 0 V and 1.5 V - critical for live insertion in backplane and modular systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.7 V to 3.6 V - ensures stable operation across industrial-grade 3.3-V rail tolerances.
Input Voltage Tolerance	0 V to 5.5 V - enables direct interfacing with legacy 5-V logic without level shifters.
t_pd (max)	4.1 ns at 3.3 V, CL = 50 pF - supports high-speed address/data buffering in DDR and parallel bus systems.
I_OL/I_OH	±24 mA at 3 V - drives standard TTL loads and multiple CMOS inputs without external buffers.
θ_JA	58°C/W (TVSOP-DGV) - enables thermal management in compact, high-density PCB layouts.
ESD Protection	2000-V HBM, 1000-V CDM - meets robustness requirements for handling and board assembly environments.
Latch-Up Immunity	>100 mA per JESD 78 Class II - prevents destructive latch-up during voltage transients or bus contention.

Pinout & Package

SN74LVCZ16244ADGVR uses a 48-pin Thin Very Small Outline Package (TVSOP-DGV), 7.1 mm × 4.4 mm body, 0.4 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant, with exposed pad not present and moisture sensitivity level 1 (260°C peak reflow).

Pin/Terminal	Circuit Role	Design Meaning
1OE–4OE	Output Enable (active-low)	Independent control per 4-bit group; asserts high-impedance on associated Y outputs when high.
1A1–4A4	Input	16 total inputs; accept 0–5.5 V signals regardless of V_CC state - enables mixed-voltage system integration.
1Y1–4Y4	True Output	16 buffered, non-inverting outputs; drive loads up to ±24 mA with defined VOH/VOL under 3-V conditions.
V_CC (Pins 7, 20, 31, 44)	Supply	Four distributed V_CC pins reduce IR drop and improve noise immunity across wide bus structures.
GND (Pins 4, 10, 15, 22, 27, 34, 39, 46)	Ground	Eight GND pins provide low-inductance return paths for all 16 drivers, minimizing ground bounce in high-speed switching.

Key Features

Feature	Design Value
Mixed-mode signal operation	5-V-tolerant inputs with 3.3-V V_CC eliminates need for external level translators in hybrid voltage systems.
Power-up 3-state	Guarantees high-impedance outputs during V_CC ramp from 0 V to 1.5 V - prevents bus conflicts at power-on/off.
I_off protection	Disables outputs when V_CC = 0 V, blocking reverse current flow during hot-swap or partial-power-down scenarios.
Hot-insertion support	Validated per JEDEC JESD78 Class II latch-up and JESD22 ESD standards - suitable for modular backplane designs.
Low dynamic power	32 pF typical power-dissipation capacitance per enabled buffer at 10 MHz - reduces switching noise and supply current spikes.

Applications

Memory Address Buffering	System Clock Distribution
Use Scenario: Driving address lines from a 3.3-V microcontroller to multiple 5-V SRAM or Flash devices in an embedded controller subsystem. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with 5-V-tolerant inputs and 3.3-V-compatible outputs, providing voltage-level translation and fanout expansion. Use Value: Eliminates discrete level shifters and reduces BOM count while maintaining timing integrity (4.1 ns t_pd) across full address bus width.	Use Scenario: Distributing a single 3.3-V clock source to multiple 5-V peripheral ICs (e.g., ADCs, DACs, FPGAs) with matched skew and load isolation. IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer with independent OE control per 4-bit segment for selective clock gating. Use Value: Enables precise clock domain partitioning and reduces jitter accumulation by isolating capacitive loads across segments.
PCI/ISA Bus Interface	Hot-Swappable Module Backplane
Use Scenario: Interfacing a 3.3-V host processor to legacy 5-V PCI or ISA bus peripherals in industrial control chassis. IC Role / Device Role / Timing Role: Bidirectional voltage-translating buffer with 3-state outputs synchronized to bus control signals (e.g., /ADS, /BLAST). Use Value: Maintains signal integrity across mixed-voltage bus transactions while meeting PCI timing budgets via sub-5 ns propagation delay.	Use Scenario: Enabling live insertion of daughter cards into a powered 3.3-V backplane carrying address, data, and control signals. IC Role / Device Role / Timing Role: Hot-plug–qualified buffer with I_off and power-up 3-state, ensuring no current injection or bus contention during card mating. Use Value: Meets IEC 61000-4-2 and JESD22 reliability requirements for field-replaceable modules without auxiliary protection circuitry.

Memory Address Buffering

System Clock Distribution

Use Scenario: Driving address lines from a 3.3-V microcontroller to multiple 5-V SRAM or Flash devices in an embedded controller subsystem.

IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with 5-V-tolerant inputs and 3.3-V-compatible outputs, providing voltage-level translation and fanout expansion.

Use Value: Eliminates discrete level shifters and reduces BOM count while maintaining timing integrity (4.1 ns t_pd) across full address bus width.

Use Scenario: Distributing a single 3.3-V clock source to multiple 5-V peripheral ICs (e.g., ADCs, DACs, FPGAs) with matched skew and load isolation.

IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer with independent OE control per 4-bit segment for selective clock gating.

Use Value: Enables precise clock domain partitioning and reduces jitter accumulation by isolating capacitive loads across segments.

PCI/ISA Bus Interface

Hot-Swappable Module Backplane

Use Scenario: Interfacing a 3.3-V host processor to legacy 5-V PCI or ISA bus peripherals in industrial control chassis.

IC Role / Device Role / Timing Role: Bidirectional voltage-translating buffer with 3-state outputs synchronized to bus control signals (e.g., /ADS, /BLAST).

Use Value: Maintains signal integrity across mixed-voltage bus transactions while meeting PCI timing budgets via sub-5 ns propagation delay.

Use Scenario: Enabling live insertion of daughter cards into a powered 3.3-V backplane carrying address, data, and control signals.

IC Role / Device Role / Timing Role: Hot-plug–qualified buffer with I_off and power-up 3-state, ensuring no current injection or bus contention during card mating.

Use Value: Meets IEC 61000-4-2 and JESD22 reliability requirements for field-replaceable modules without auxiliary protection circuitry.

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
SN74LVC16244ADGVR	Omits Z-series features: no I_off, no power-up 3-state, lower ESD rating (1500-V HBM).	Not suitable for hot-insertion or partial-power-down systems; requires external pullups on OE for safe power sequencing.	Select only for cost-sensitive, fixed-power applications where hot-swap is not required.
74ALVC16244DGG	Same pinout and function but higher drive (±24 mA at 2.5 V), tighter t_pd (3.8 ns), and extended V_CC range (1.65–3.6 V).	Better suited for ultra-low-voltage or mixed 2.5-V/3.3-V systems; lacks explicit hot-swap qualification documentation.	Prefer when operating below 2.7 V or requiring marginally faster timing; verify OE sequencing separately.

Compared with SN74LVC16244ADGVR and 74ALVC16244DGG, the SN74LVCZ16244ADGVR uniquely guarantees I_off and power-up 3-state behavior - making it the only choice for certified hot-plug implementations without design-level risk mitigation.

Availability

SN74LVCZ16244ADGVR is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, and hot-swappable backplane interfaces requiring stable component supply, long-term lifecycle assurance, and JEDEC-compliant reliability.

Supply support for SN74LVCZ16244ADGVR 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 SN74LVCZ16244ADGVR belongs to TI's Widebus™ family of high-density, high-speed interface ICs, engineered specifically to replace discrete logic in memory, bus, and clock subsystems while enabling mixed-voltage interoperability.

FAQ

What is the maximum input voltage the SN74LVCZ16244ADGVR can tolerate?

The SN74LVCZ16244ADGVR accepts input voltages from 0 V to 5.5 V, independent of V_CC level. This allows direct connection to 5-V logic sources while operating from a 3.3-V supply - a core feature enabling mixed-voltage system design without external level shifters. The absolute maximum rating remains –0.5 V to 6.5 V, but functional operation is specified up to 5.5 V.

Does the SN74LVCZ16244ADGVR support hot insertion, and how is it implemented?

Yes, the SN74LVCZ16244ADGVR supports hot insertion via two integrated features: I_off circuitry disables outputs when V_CC = 0 V to block reverse current, and power-up 3-state forces outputs into high-impedance during V_CC ramping from 0 V to 1.5 V. These functions are verified per JESD78 Class II latch-up and JESD22 ESD standards, making SN74LVCZ16244ADGVR suitable for live-backplane applications.

What is the thermal resistance (θ_JA) of the SN74LVCZ16244ADGVR in its TVSOP package?

The SN74LVCZ16244ADGVR in the TVSOP-DGV package has a junction-to-ambient thermal resistance (θ_JA) of 58°C/W, measured per JESD51-7 on a standard 4-layer JEDEC test board. This value reflects its compact 7.1 mm × 4.4 mm footprint and supports thermal design in space-constrained industrial PCBs where airflow is limited.

How many independent output-enable controls does the SN74LVCZ16244ADGVR provide?

The SN74LVCZ16244ADGVR provides four independent active-low output-enable inputs (1OE, 2OE, 3OE, 4OE), each controlling a 4-bit segment of the 16-bit bus. This segmentation allows selective 3-state control - for example, disabling only address bits [15:8] while keeping [7:0] active - improving system-level power management and bus arbitration flexibility.

Can the SN74LVCZ16244ADGVR be used with a 2.5-V supply?

No - the SN74LVCZ16244ADGVR is specified only for 2.7 V to 3.6 V V_CC. Operation below 2.7 V violates recommended operating conditions and may result in undefined output levels, increased propagation delay, or failure to meet 5-V input tolerance guarantees. For 2.5-V systems, consider the pin-compatible 74ALVC16244DGG, which supports 1.65 V to 3.6 V.

SN74LVCZ16244ADGVR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVCZ

Package/Case:: 48-TFSOP (0.173", 4.40mm 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:: 24mA, 24mA

Voltage - Supply:: 2.7V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TVSOP

SN74LVCZ16244ADGVR FAQ

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Please submit a Request for Quotation (RFQ) for SN74LVCZ16244ADGVR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

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The price and inventory of SN74LVCZ16244ADGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVCZ16244ADGVR is usually 5 days.

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For technical support, including SN74LVCZ16244ADGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVCZ16244ADGVR requirements.

6.How does Aetrix verify that SN74LVCZ16244ADGVR is sourced from the original manufacturer or authorized distributors?

All SN74LVCZ16244ADGVR 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 SN74LVCZ16244ADGVR meets industry standards.

7.What is the process for return or replacement of SN74LVCZ16244ADGVR?

All SN74LVCZ16244ADGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVCZ16244ADGVR, 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 SN74LVCZ16244ADGVR part is unused and in its original packaging.

Return procedure for SN74LVCZ16244ADGVR:

1.Submit a request within 90 days.

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

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