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

Texas Instruments 74LVCZ16240ADLRG4

Name: 74LVCZ16240ADLRG4
Brand: Texas Instruments
SKU: 74LVCZ16240ADLRG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVCZ16240ADLRG4

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74LVCZ16240ADLRG4.pdf

Description:: IC BUFFER INVERT 3.6V 48SSOP

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Product details

Overview

74LVCZ16240ADLRG4 from Texas Instruments is a 16-bit 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 4.2 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 74LVCZ16240ADLRG4 datasheet, 74LVCZ16240ADLRG4 pinout, 74LVCZ16240ADLRG4 application, or 74LVCZ16240ADLRG4 equivalent, key selection criteria include 3.3-V supply compatibility, 5.5-V-tolerant inputs, guaranteed high-impedance during power sequencing, latch-up immunity (>100 mA), and TSSOP-48 packaging for high-density PCB layouts.

Technical Context

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

The I_off circuit disables outputs when V_CC = 0 V to prevent backflow current, while power-up 3-state ensures outputs remain high-impedance until V_CC exceeds 1.5 V - critical for hot-swap and live-insertion compliance. Latch-up performance exceeds 100 mA per JESD 78 Class II.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.7 V to 3.6 V - defines valid operating supply window; operation outside this range invalidates timing and DC specs.
Input Voltage Tolerance	0 V to 5.5 V - enables direct interfacing with 5-V logic without external level shifters.
Max Propagation Delay (t_pd)	4.2 ns at V_CC = 3.3 V, CL = 50 pF - guarantees sub-5-ns timing for high-speed address/data bus buffering.
I_off Current	±5 µA at VI/VO = 5.5 V, V_CC = 0 V - prevents damaging current flow during hot insertion or partial power-down.
Output Drive Strength	±24 mA at V_CC = 3 V - supports driving 50-pF loads with fast edge rates in dense bus environments.
Latch-Up Immunity	>100 mA per JESD 78 Class II - ensures robustness against transient-induced parasitic thyristor activation.
ESD Protection	2000-V HBM, 1000-V CDM - meets industrial-grade ESD resilience requirements without external protection.

Pinout & Package

TSSOP-48 package (DGG), 12.6 mm × 6.2 mm × 1.2 mm max height, lead-free NiPdAu finish, moisture sensitivity level 1 (260°C peak reflow).

Pin/Terminal	Circuit Role	Design Meaning
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 (Pins 1–4, 7–10, 25–28, 31–34)	Input (inverting buffer stage)	Four groups of four inputs accepting 5.5-V-tolerant signals; each group drives corresponding Y outputs.
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 2–3, 5–6, 11–12, 14–17, 19–20, 22–23, 26–27, 29–30, 32–33, 35–36, 38–39, 41–44, 46–47)	Inverting Output (3-state)	16 buffered, inverted outputs; each enabled/disabled independently via respective OE pin.
1OE, 2OE, 3OE, 4OE (Pins 1, 48, 24, 25)	Output Enable (active-low)	Four independent OE controls - allows selective 4-bit segment enable/disable without affecting other channels.
V_CC (Pins 7, 21, 37, 42)	Supply Voltage	Four dedicated V_CC pins reduce IR drop and improve noise immunity across wide 48-pin layout.
GND (Pins 4, 8, 13, 18, 22, 31, 35, 40, 45)	Ground Reference	Nine GND pins provide low-inductance return paths and support simultaneous switching noise (SSN) mitigation.

Key Features

Feature	Design Value
Mixed-mode voltage translation	5-V-tolerant inputs with 3.3-V V_CC enable seamless interface between legacy 5-V peripherals and modern 3.3-V controllers.
Hot-insertion support	I_off + power-up 3-state eliminates bus contention and backfeed risk during live board replacement in telecom and server backplanes.
Configurable segmentation	Four independent 4-bit sections allow dynamic allocation as 16-bit, dual 8-bit, or quad 4-bit drivers - optimizing routing and timing closure.
High noise immunity	9 GND pins + 4 V_CC pins minimize ground bounce and supply ripple, maintaining signal integrity at >100-MHz effective data rates.
Industrial temperature range	–40°C to +85°C operation ensures reliability in extended-temperature embedded control and networking equipment.

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 a legacy-compatible memory subsystem. IC Role / Device Role / Timing Role: Inverting 16-bit buffer providing level translation, fanout expansion, and timing-controlled enable gating for address strobes. Use Value: Eliminates discrete level shifters and reduces BOM count while guaranteeing <4.2 ns t_pd to meet tight SRAM access timing windows.	Use Scenario: Distributing a single 3.3-V system clock to multiple 5-V peripheral ICs (e.g., UARTs, ADCs) requiring synchronized timing. IC Role / Device Role / Timing Role: Low-skew, inverting clock driver with independent OE control per 4-bit segment for dynamic clock gating. Use Value: Maintains sub-5 ns skew across all 16 outputs and supports hot-plug clock domain isolation via OE assertion.
PCI/ISA Bus Interface	Industrial I/O Expansion
Use Scenario: Interfacing a 3.3-V host processor to a 5-V ISA bus in industrial PC-based control systems with legacy add-in cards. IC Role / Device Role / Timing Role: Bidirectional address/data buffer with 3-state control enabling shared bus arbitration and direction management. Use Value: Provides 5.5-V-tolerant inputs and ±24-mA drive strength to meet ISA bus loading requirements without external transceivers.	Use Scenario: Expanding GPIO count on a PLC CPU module by buffering digital I/O signals to 5-V field sensors and actuators. IC Role / Device Role / Timing Role: Robust 16-bit I/O driver with latch-up immunity (>100 mA) and ESD hardening (2000-V HBM) for harsh factory-floor environments. Use Value: Withstands repetitive ESD events and inductive load transients without latch-up or parametric drift over 10+ year service life.

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 a legacy-compatible memory subsystem.

IC Role / Device Role / Timing Role: Inverting 16-bit buffer providing level translation, fanout expansion, and timing-controlled enable gating for address strobes.

Use Value: Eliminates discrete level shifters and reduces BOM count while guaranteeing <4.2 ns t_pd to meet tight SRAM access timing windows.

Use Scenario: Distributing a single 3.3-V system clock to multiple 5-V peripheral ICs (e.g., UARTs, ADCs) requiring synchronized timing.

IC Role / Device Role / Timing Role: Low-skew, inverting clock driver with independent OE control per 4-bit segment for dynamic clock gating.

Use Value: Maintains sub-5 ns skew across all 16 outputs and supports hot-plug clock domain isolation via OE assertion.

PCI/ISA Bus Interface

Industrial I/O Expansion

Use Scenario: Interfacing a 3.3-V host processor to a 5-V ISA bus in industrial PC-based control systems with legacy add-in cards.

IC Role / Device Role / Timing Role: Bidirectional address/data buffer with 3-state control enabling shared bus arbitration and direction management.

Use Value: Provides 5.5-V-tolerant inputs and ±24-mA drive strength to meet ISA bus loading requirements without external transceivers.

Use Scenario: Expanding GPIO count on a PLC CPU module by buffering digital I/O signals to 5-V field sensors and actuators.

IC Role / Device Role / Timing Role: Robust 16-bit I/O driver with latch-up immunity (>100 mA) and ESD hardening (2000-V HBM) for harsh factory-floor environments.

Use Value: Withstands repetitive ESD events and inductive load transients without latch-up or parametric drift over 10+ year service life.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16240ADGGR	No Z-suffix; lacks enhanced I_off and power-up 3-state circuitry - not rated for hot-insertion.	Suitable only for static, cold-insertion systems where V_CC sequencing is fully controlled.	Select only if hot-swap capability is unnecessary and cost optimization is primary.
74ALVC16240DGGR	Higher V_CC range (2.3 V–3.6 V); lower t_pd (3.5 ns @ 3.3 V); no 5.5-V input tolerance - limited to 3.3-V-only systems.	Optimized for ultra-low-latency 3.3-V buses but incompatible with 5-V signal domains.	Choose when maximum speed in pure 3.3-V environments outweighs mixed-voltage flexibility.

Compared with SN74LVC16240ADGGR and 74ALVC16240DGGR, the 74LVCZ16240ADLRG4 uniquely combines 5.5-V input tolerance, hot-insertion readiness, and guaranteed 3.3-V timing - making it the sole option for mixed-voltage, live-replaceable bus interfaces.

Availability

74LVCZ16240ADLRG4 is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, industrial I/O expansion, and PCI/ISA bus bridging requiring stable component supply across extended product lifecycles.

Supply support for 74LVCZ16240ADLRG4 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 decades of experience in high-reliability logic and interface solutions.

The 74LVCZ16240ADLRG4 belongs to TI's Widebus™ family - engineered specifically to enhance density and performance of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in mixed-voltage systems.

FAQ

What is the supply voltage range for the 74LVCZ16240ADLRG4?

The 74LVCZ16240ADLRG4 operates from 2.7 V to 3.6 V on V_CC. Operation outside this range violates recommended conditions and may result in undefined timing, increased ICC, or functional failure. The device is not rated for 5-V V_CC operation - only inputs tolerate up to 5.5 V.

Does the 74LVCZ16240ADLRG4 support hot insertion?

Yes, the 74LVCZ16240ADLRG4 supports hot insertion via integrated I_off circuitry and power-up 3-state functionality. When V_CC = 0 V, I_off limits reverse current to ±5 µA; during power-up/down (V_CC < 1.5 V), outputs remain high-impedance - preventing bus conflicts in live-backplane applications.

Can the 74LVCZ16240ADLRG4 interface 5-V inputs with a 3.3-V microcontroller?

Yes - all inputs of the 74LVCZ16240ADLRG4 accept voltages up to 5.5 V independent of V_CC, enabling direct connection to 5-V logic outputs. The device translates these to clean 3.3-V-compatible outputs, eliminating need for external level shifters in mixed-voltage designs.

How many independent output-enable controls does the 74LVCZ16240ADLRG4 have?

The 74LVCZ16240ADLRG4 has four independent active-low output-enable inputs: 1OE (Pin 1), 2OE (Pin 48), 3OE (Pin 24), and 4OE (Pin 25). Each controls a 4-bit buffer section, allowing granular 3-state management - e.g., disabling only one 4-bit segment while others remain active.

What package type and RoHS status does the 74LVCZ16240ADLRG4 use?

The 74LVCZ16240ADLRG4 uses a TSSOP-48 (DGG) package with 12.6 mm × 6.2 mm footprint and 1.2 mm max height. It is RoHS-compliant (lead-free NiPdAu finish), moisture sensitivity level 1 (MSL-1), and rated for –40°C to +85°C operation - verified per TI's official packaging documentation.

74LVCZ16240ADLRG4 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:: Obsolete

Logic Type:: Buffer, 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

74LVCZ16240ADLRG4 FAQ

1.How can I place an order for 74LVCZ16240ADLRG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVCZ16240ADLRG4 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 74LVCZ16240ADLRG4 reliable?

The price and inventory of 74LVCZ16240ADLRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCZ16240ADLRG4 is usually 5 days.

3.What payment methods are accepted for 74LVCZ16240ADLRG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCZ16240ADLRG4 transactions.

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4.How is shipping managed for 74LVCZ16240ADLRG4?

74LVCZ16240ADLRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVCZ16240ADLRG4 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 74LVCZ16240ADLRG4?

For technical support, including 74LVCZ16240ADLRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCZ16240ADLRG4 requirements.

6.How does Aetrix verify that 74LVCZ16240ADLRG4 is sourced from the original manufacturer or authorized distributors?

All 74LVCZ16240ADLRG4 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 74LVCZ16240ADLRG4 meets industry standards.

7.What is the process for return or replacement of 74LVCZ16240ADLRG4?

All 74LVCZ16240ADLRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCZ16240ADLRG4, 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 74LVCZ16240ADLRG4 part is unused and in its original packaging.

Return procedure for 74LVCZ16240ADLRG4:

1.Submit a request within 90 days.

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

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