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

Texas Instruments SN74LVCZ16244ADLR

Name: SN74LVCZ16244ADLR
Brand: Texas Instruments
SKU: SN74LVCZ16244ADLR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVCZ16244ADLR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: SN74LVCZ16244ADLR.pdf

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

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Product details

Overview

SN74LVCZ16244ADLR 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 translation (5-V inputs with 3.3-V V_CC), delivers ≤4.1 ns 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 SN74LVCZ16244ADLR datasheet, SN74LVCZ16244ADLR pinout, SN74LVCZ16244ADLR application, or SN74LVCZ16244ADLR equivalent, key selection criteria include 3-state timing (t_en/t_dis ≤4.6 ns), 5.5-V-tolerant inputs, ±24-mA drive strength at 3 V, and SSOP-48 package compatibility with industrial temperature range (–40°C to 85°C).

Technical Context

This device implements four independent 4-bit buffers, each controlled by a dedicated output-enable (OE) input, enabling flexible partitioning as one 16-bit, two 8-bit, or four 4-bit drivers. All inputs accept voltages up to 5.5 V regardless of V_CC, supporting bidirectional level translation in mixed-voltage systems.

During power-up/down (V_CC < 1.5 V), outputs default to high-impedance; above 1.5 V, OE must be pulled high via external resistor to guarantee 3-state behavior. The I_off circuit blocks current backflow when V_CC = 0 V, satisfying JESD 78 Class II latch-up (>100 mA) and JESD 22 ESD requirements (2000-V HBM, 1000-V CDM).

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.7 V to 3.6 V - Ensures stable operation across industrial 3.3-V supply tolerances.
Input Voltage Tolerance	0 V to 5.5 V - Enables direct interfacing with legacy 5-V logic without external level shifters.
t_pd (Max)	4.1 ns at 3.3 V - Supports high-speed address/data bus buffering up to ~240 MHz system timing.
I_OL/I_OH	±24 mA at 3 V - Drives standard 50-pF loads with robust noise margin and fanout capability.
Operating Temperature	–40°C to 85°C - Qualified for industrial-grade embedded control and communications equipment.
Package	SSOP-48 (DL) - 0.635-mm pitch, 12.6 mm × 6.1 mm footprint compatible with automated SMT assembly.
Hot-Insertion Support	I_off + Power-Up 3-State - Prevents bus contention and backdrive damage during live board insertion.

Pinout & Package

SN74LVCZ16244ADLR uses a 48-pin Shrink Small-Outline Package (SSOP-DL) with 0.635-mm lead pitch, 12.6 mm × 6.1 mm body size, and 1.2-mm max height. Pin 1 is located at top-left corner (Q1 quadrant per tape reel orientation).

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Output Enable (active-low)	Independent control of each 4-bit buffer group; low = enabled, high = 3-state.
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Buffer Inputs	16 total inputs accepting 0–5.5 V; no level-shifting circuitry required for 5-V sources.
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	Buffer Outputs	16 true (non-inverting) outputs with 3-state capability; drive strength configurable per V_CC.
V_CC (Pins 7, 20, 33, 46)	Power Supply	Four distributed V_CC pins reduce IR drop and improve noise immunity on wide buses.
GND (Pins 4, 10, 15, 27, 32, 39, 44)	Ground Reference	Seven GND pins provide low-inductance return paths for all 16 outputs and internal logic.

Key Features

Feature	Design Value
Mixed-Mode Signal Operation	5-V-tolerant inputs with 3.3-V V_CC enable seamless integration between legacy 5-V peripherals and modern 3.3-V controllers.
Hot-Insertion Capability	I_off disables outputs at V_CC = 0 V; power-up 3-state prevents bus conflicts during ramp-up/ramp-down sequences.
Configurable Buffer Partitioning	Four independent OE inputs allow dynamic reconfiguration as 16-bit, dual 8-bit, or quad 4-bit drivers without redesign.
Low Propagation Delay	4.1 ns max t_pd at 3.3 V ensures minimal timing skew across 16-bit data/address paths in high-speed systems.
Robust ESD/Latch-Up Protection	Exceeds JESD 22 (2000-V HBM, 1000-V CDM) and JESD 78 Class II (>100 mA), reducing field failure risk in handling and operation.

Applications

Memory Address Buffering	Clock Distribution
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM/Flash devices in an industrial PLC. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating controller address bus from memory modules during chip-select arbitration. Use Value: Eliminates need for discrete level shifters due to 5.5-V input tolerance and ensures glitch-free bus release via fast t_dis (≤5.8 ns).	Use Scenario: Distributing a 50-MHz system clock to four synchronous peripherals with matched trace lengths. IC Role / Device Role / Timing Role: Low-skew 16-bit fanout buffer with uniform t_pd across all channels to maintain clock phase alignment. Use Value: 4.1-ns max t_pd and tight parameter matching (<±0.3 ns typical) minimize clock skew across endpoints.
Bus Transceiver Interface	Mixed-Voltage System Bridge
Use Scenario: Bidirectional data bus isolation between a 3.3-V FPGA and legacy 5-V ADC/DAC subsystems. IC Role / Device Role / Timing Role: Direction-controlled 3-state buffer enabling time-multiplexed read/write cycles on shared data lines. Use Value: Independent OE pins per 4-bit group permit granular bus segment control, reducing contention risk during partial transfers.	Use Scenario: Interfacing a 5-V sensor interface IC with a 3.3-V ARM Cortex-M4 host in an automotive diagnostic tool. IC Role / Device Role / Timing Role: Level-translating buffer converting 5-V sensor outputs to 3.3-V logic levels without external resistors or translators. Use Value: Input voltage tolerance up to 5.5 V eliminates external voltage dividers, simplifying BOM and PCB layout.

Memory Address Buffering

Clock Distribution

Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM/Flash devices in an industrial PLC.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating controller address bus from memory modules during chip-select arbitration.

Use Value: Eliminates need for discrete level shifters due to 5.5-V input tolerance and ensures glitch-free bus release via fast t_dis (≤5.8 ns).

Use Scenario: Distributing a 50-MHz system clock to four synchronous peripherals with matched trace lengths.

IC Role / Device Role / Timing Role: Low-skew 16-bit fanout buffer with uniform t_pd across all channels to maintain clock phase alignment.

Use Value: 4.1-ns max t_pd and tight parameter matching (<±0.3 ns typical) minimize clock skew across endpoints.

Bus Transceiver Interface

Mixed-Voltage System Bridge

Use Scenario: Bidirectional data bus isolation between a 3.3-V FPGA and legacy 5-V ADC/DAC subsystems.

IC Role / Device Role / Timing Role: Direction-controlled 3-state buffer enabling time-multiplexed read/write cycles on shared data lines.

Use Value: Independent OE pins per 4-bit group permit granular bus segment control, reducing contention risk during partial transfers.

Use Scenario: Interfacing a 5-V sensor interface IC with a 3.3-V ARM Cortex-M4 host in an automotive diagnostic tool.

IC Role / Device Role / Timing Role: Level-translating buffer converting 5-V sensor outputs to 3.3-V logic levels without external resistors or translators.

Use Value: Input voltage tolerance up to 5.5 V eliminates external voltage dividers, simplifying BOM and PCB layout.

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
SN74LVC16244ADLR	Omits Z-series features: no 5.5-V input tolerance (max VI = V_CC + 0.5 V), no I_off, no hot-insertion support.	Suitable only for pure 3.3-V systems with no mixed-voltage interaction or live insertion requirements.	Select SN74LVC16244ADLR only if cost sensitivity outweighs need for 5-V tolerance and hot-swap robustness.
SN74ALVC16244DLR	Wider V_CC range (1.65 V–3.6 V); identical pinout but lower drive (±24 mA at 3 V, ±12 mA at 1.8 V) and higher t_pd (5.5 ns).	Better suited for ultra-low-voltage portable designs where 1.8-V operation is mandatory, not for industrial 3.3-V systems.	Choose SN74ALVC16244DLR only when operating below 2.3 V; otherwise SN74LVCZ16244ADLR provides superior speed and noise margin.

Compared with SN74LVC16244ADLR and SN74ALVC16244DLR, SN74LVCZ16244ADLR uniquely combines 5.5-V input tolerance, hot-insertion safety, and 4.1-ns speed-making it the only option qualified for mixed-voltage industrial bus buffering where reliability under voltage transients and live insertion is critical.

Availability

SN74LVCZ16244ADLR is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, bus transceiver interfaces, and mixed-voltage system bridging requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for SN74LVCZ16244ADLR 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 connectivity technologies, with over 90 years of innovation in industrial, automotive, and communications markets.

The SN74LVCZ16244ADLR belongs to TI's Widebus™ family of high-density, high-speed logic devices engineered specifically for memory address drivers, clock drivers, and bus-oriented receivers/transmitters in industrial and telecom infrastructure.

FAQ

What is the maximum input voltage rating for SN74LVCZ16244ADLR?

The SN74LVCZ16244ADLR supports input voltages from 0 V to 5.5 V, independent of V_CC. This allows direct connection to 5-V logic sources while operating from a 3.3-V supply, eliminating external level-shifting components in mixed-voltage systems. Exceeding 5.5 V risks permanent damage per absolute maximum ratings.

Does SN74LVCZ16244ADLR support hot insertion, and how is it implemented?

Yes, SN74LVCZ16244ADLR supports hot insertion via two integrated features: I_off circuitry disables outputs when V_CC = 0 V to prevent back-current flow, and power-up 3-state forces outputs into high-impedance during V_CC ramp-up (0–1.5 V). These ensure bus integrity during live board replacement in telecom or industrial backplane applications.

What is the propagation delay specification for SN74LVCZ16244ADLR at 3.3 V?

The maximum propagation delay (t_pd) for SN74LVCZ16244ADLR is 4.1 ns at V_CC = 3.3 V with CL = 50 pF. This value is guaranteed across –40°C to 85°C and enables reliable operation in high-speed address/data bus applications where timing margins are constrained, such as DDR memory controllers or FPGA I/O expansion.

How many independent output-enable (OE) inputs does SN74LVCZ16244ADLR have?

SN74LVCZ16244ADLR has four independent active-low output-enable inputs: 1OE, 2OE, 3OE, and 4OE. Each controls a separate 4-bit buffer section (e.g., 1OE governs Y1–Y4 outputs), allowing flexible partitioning as one 16-bit, two 8-bit, or four 4-bit drivers without external logic or PCB changes.

What package type and dimensions does SN74LVCZ16244ADLR use?

SN74LVCZ16244ADLR uses a 48-pin SSOP (Shrink Small-Outline Package) with DL suffix, measuring 12.6 mm × 6.1 mm with 0.635-mm lead pitch and 1.2-mm max height. Its JEDEC MO-153-compliant footprint supports standard SMT reflow profiles and is optimized for high-density industrial PCB layouts requiring thermal and mechanical reliability.

SN74LVCZ16244ADLR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVCZ

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:: 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-SSOP

SN74LVCZ16244ADLR FAQ

1.How can I place an order for SN74LVCZ16244ADLR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVCZ16244ADLR 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 SN74LVCZ16244ADLR reliable?

The price and inventory of SN74LVCZ16244ADLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVCZ16244ADLR is usually 5 days.

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SN74LVCZ16244ADLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVCZ16244ADLR 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 SN74LVCZ16244ADLR?

For technical support, including SN74LVCZ16244ADLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVCZ16244ADLR requirements.

6.How does Aetrix verify that SN74LVCZ16244ADLR is sourced from the original manufacturer or authorized distributors?

All SN74LVCZ16244ADLR 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 SN74LVCZ16244ADLR meets industry standards.

7.What is the process for return or replacement of SN74LVCZ16244ADLR?

All SN74LVCZ16244ADLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVCZ16244ADLR, 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 SN74LVCZ16244ADLR part is unused and in its original packaging.

Return procedure for SN74LVCZ16244ADLR:

1.Submit a request within 90 days.

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

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