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

Texas Instruments SN74LVCH16240ADGGR

Name: SN74LVCH16240ADGGR
Brand: Texas Instruments
SKU: SN74LVCH16240ADGGR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVCH16240ADGGR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: SN74LVCH16240ADGGR.pdf

Description:: IC BUFFER INVERT 3.6V 48TSSOP

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Product details

Overview

SN74LVCH16240ADGGR from Texas Instruments is a 16-bit inverting buffer/driver with 3-state outputs, designed for 1.65 V to 3.6 V operation, supporting mixed-mode 5-V input/3.3-V VCC interfacing, with 4.2 ns max propagation delay at 3.3 V and bus-hold on all data inputs - used in memory address buffering, clock distribution, and bus-transceiver applications.

For engineers reviewing the SN74LVCH16240ADGGR datasheet, SN74LVCH16240ADGGR pinout, SN74LVCH16240ADGGR application, or SN74LVCH16240ADGGR equivalent, key selection criteria include its Ioff partial-power-down capability, 5.5-V-tolerant inputs, symmetrical active-low OE control per 4-bit section, and TSSOP-48 package compatibility with high-density PCB layouts.

Technical Context

This device implements four independent 4-bit inverting buffers, each with dedicated active-low output-enable (OE) inputs (1OE–4OE), enabling flexible partitioning as one 16-bit, two 8-bit, or four 4-bit drivers. All inputs feature bus-hold circuitry eliminating external pull resistors.

It supports partial-power-down via Ioff, which disables outputs and blocks current backflow when VCC = 0 V, and tolerates 5.5-V inputs regardless of VCC (1.65–3.6 V), making it suitable for level translation between 3.3-V logic domains and legacy 5-V peripherals.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	1.65 V to 3.6 V - enables direct integration into modern low-voltage systems without level shifters.
Input Voltage Tolerance	Up to 5.5 V - allows safe connection to 5-V TTL/CMOS outputs without clamping diodes or external protection.
Max tpd	4.2 ns at VCC = 3.3 V - ensures timing-critical bus driving in high-speed memory and clock paths.
Ioff Current	<±10 µA at VI/VO = 5.5 V - prevents damaging back-current during power sequencing or hot-insertion.
Bus-Hold Current	±45 µA at VCC = 2.3 V - maintains valid logic states on floating inputs without external bias components.
Output Drive	±24 mA at VCC = 3 V - drives standard CMOS loads and short traces without signal degradation.
ESD Rating	2000-V HBM - meets industrial-grade robustness requirements for board-level handling and field operation.

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
1A1–4A4 (Pins 1–4, 41–44, 25–28, 30–33)	Data Inputs (4 groups × 4 bits)	Accept 5.5-V-tolerant signals; each group has dedicated OE control.
1Y1–4Y4 (Pins 2–5, 8–12, 13–17, 19–23)	Inverting 3-State Outputs (4 groups × 4 bits)	Drive buses or downstream logic; high-impedance when corresponding OE = high.
1OE–4OE (Pins 1, 48, 25, 24)	Active-Low Output Enables	Independent control per 4-bit section; tie to VCC via pullup for power-up high-Z safety.
VCC (Pins 7, 20, 36, 45)	Supply Voltage	Four distributed VCC pins reduce switching noise and improve PSRR across wide bus operation.
GND (Pins 4, 10, 15, 22, 27, 32, 37, 43)	Ground Return	Eight GND pins minimize ground bounce and support simultaneous switching of all 16 outputs.

Key Features

Feature	Design Value
Inverting 3-State Buffer Architecture	Enables bidirectional bus control and avoids contention in shared-data-path systems.
Bus-Hold on All Data Inputs	Eliminates need for 32 external pullup/pulldown resistors in 16-bit configurations.
Mixed-Mode Signal Operation	Permits direct interface between 5-V sensors/microcontrollers and 3.3-V FPGAs or processors.
Ioff Partial-Power-Down Support	Allows safe insertion/removal in live backplanes and hot-swap subsystems without latch-up risk.
Low Ground Bounce (VOLP < 0.8 V)	Reduces noise coupling into adjacent analog or RF sections on mixed-signal PCBs.

Applications

Memory Address Buffering	Industrial PLC Backplane Interface
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or Flash devices in a tightly timed memory map. IC Role / Device Role / Timing Role: Inverting 3-state buffer providing fanout, voltage translation, and bus isolation during chip-select transitions. Use Value: 4.2 ns tpd ensures setup/hold timing margins are preserved across temperature and voltage extremes.	Use Scenario: Interfacing 5-V field I/O modules to a 3.3-V programmable logic controller CPU board. IC Role / Device Role / Timing Role: Level-translating buffer with bus-hold maintaining stable logic states during module hot-swap events. Use Value: 5.5-V-tolerant inputs and Ioff prevent damage or system reset when modules are inserted under power.
High-Density Clock Distribution	Legacy Peripheral Bridge
Use Scenario: Distributing a single clock signal to multiple synchronous peripherals (ADCs, DACs, serializers) on a compact PCB. IC Role / Device Role / Timing Role: Low-skew inverting driver with matched propagation delays across all 16 outputs. Use Value: Symmetrical tpd and VOLP < 0.8 V minimize clock jitter and maintain deterministic edge alignment.	Use Scenario: Connecting an older 5-V parallel printer port or ISA-bus peripheral to a modern 3.3-V SoC-based host. IC Role / Device Role / Timing Role: Bidirectional bus transceiver enabling protocol-compliant handshaking and data flow control. Use Value: Active-low OE per 4-bit group allows selective enablement of control vs. data lines without added logic.

Memory Address Buffering

Industrial PLC Backplane Interface

Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or Flash devices in a tightly timed memory map.

IC Role / Device Role / Timing Role: Inverting 3-state buffer providing fanout, voltage translation, and bus isolation during chip-select transitions.

Use Value: 4.2 ns tpd ensures setup/hold timing margins are preserved across temperature and voltage extremes.

Use Scenario: Interfacing 5-V field I/O modules to a 3.3-V programmable logic controller CPU board.

IC Role / Device Role / Timing Role: Level-translating buffer with bus-hold maintaining stable logic states during module hot-swap events.

Use Value: 5.5-V-tolerant inputs and Ioff prevent damage or system reset when modules are inserted under power.

High-Density Clock Distribution

Legacy Peripheral Bridge

Use Scenario: Distributing a single clock signal to multiple synchronous peripherals (ADCs, DACs, serializers) on a compact PCB.

IC Role / Device Role / Timing Role: Low-skew inverting driver with matched propagation delays across all 16 outputs.

Use Value: Symmetrical tpd and VOLP < 0.8 V minimize clock jitter and maintain deterministic edge alignment.

Use Scenario: Connecting an older 5-V parallel printer port or ISA-bus peripheral to a modern 3.3-V SoC-based host.

IC Role / Device Role / Timing Role: Bidirectional bus transceiver enabling protocol-compliant handshaking and data flow control.

Use Value: Active-low OE per 4-bit group allows selective enablement of control vs. data lines without added logic.

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 bus-hold; 1.65–3.6 V only; 5-V input tolerance not guaranteed.	Requires external pull resistors; unsuitable for undriven or intermittently connected buses.	Select only if cost sensitivity outweighs reliability needs and bus-hold is unnecessary.
74ALVC16240PW	Higher drive (±24 mA @ 2.5 V); same VCC range; no Ioff or bus-hold.	Lacks partial-power-down and floating-input immunity; requires careful power sequencing.	Prefer where higher speed (3.5 ns tpd) is critical and system controls all power domains strictly.

Compared with SN74LVCH16240ADGGR, SN74LVC16240ADGGR lacks bus-hold and robust 5-V input tolerance, while 74ALVC16240PW offers faster propagation but omits Ioff and bus-hold - making SN74LVCH16240ADGGR uniquely suited for mixed-voltage, hot-plug, and floating-bus environments.

Availability

SN74LVCH16240ADGGR is available at Aetrix Electronics and suitable for memory subsystem design, industrial backplane interfacing, high-density clock distribution, and legacy peripheral bridging requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74LVCH16240ADGGR 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 with emphasis on reliability, longevity, and industrial-grade qualification.

The SN74LVCH16240ADGGR belongs to TI's Widebus™ family - engineered specifically to enhance performance and density in 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters for industrial and computing infrastructure.

FAQ

What is the maximum operating voltage for SN74LVCH16240ADGGR inputs?

The SN74LVCH16240ADGGR inputs tolerate up to 5.5 V regardless of VCC setting (1.65–3.6 V), enabling direct interfacing with 5-V logic families without external level-shifting circuitry. This specification is validated per absolute maximum ratings and confirmed in the recommended operating conditions table of the official TI datasheet SCAS566H.

Does SN74LVCH16240ADGGR support partial-power-down operation?

Yes, SN74LVCH16240ADGGR supports partial-power-down via its Ioff feature, which disables outputs and limits current backflow to <±10 µA when VCC = 0 V and inputs/outputs are biased to 5.5 V. This behavior is explicitly characterized in the Electrical Characteristics table and enables safe use in hot-swap and multi-rail systems.

How many independent output-enable controls does SN74LVCH16240ADGGR provide?

SN74LVCH16240ADGGR provides four independent active-low output-enable inputs (1OE, 2OE, 3OE, 4OE), each controlling a 4-bit buffer section. This allows granular bus management - for example, enabling address lines while disabling data lines - and is clearly shown in both the functional diagram and pinout table of the TI datasheet.

Is bus-hold functionality enabled by default on SN74LVCH16240ADGGR inputs?

Yes, bus-hold circuitry is integrated and always active on all 16 data inputs of SN74LVCH16240ADGGR - no configuration or external components are required. It maintains valid logic states on floating inputs with ±45 µA hold current at 2.3 V VCC, as specified in the Electrical Characteristics table.

What package type and lead count does SN74LVCH16240ADGGR use?

SN74LVCH16240ADGGR uses the TSSOP-48 (DGG) package: 48-pin thin shrink small-outline package with 0.5-mm pitch, 12.6 mm × 6.2 mm body size, and 1.2 mm max height. This is confirmed in TI's PACKAGE OPTION ADDENDUM and mechanical drawing DGG0048A.

SN74LVCH16240ADGGR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVCH

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

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:: 1.65V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

SN74LVCH16240ADGGR FAQ

1.How can I place an order for SN74LVCH16240ADGGR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVCH16240ADGGR 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 SN74LVCH16240ADGGR reliable?

The price and inventory of SN74LVCH16240ADGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVCH16240ADGGR is usually 5 days.

3.What payment methods are accepted for SN74LVCH16240ADGGR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVCH16240ADGGR transactions.

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4.How is shipping managed for SN74LVCH16240ADGGR?

SN74LVCH16240ADGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVCH16240ADGGR 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 SN74LVCH16240ADGGR?

For technical support, including SN74LVCH16240ADGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVCH16240ADGGR requirements.

6.How does Aetrix verify that SN74LVCH16240ADGGR is sourced from the original manufacturer or authorized distributors?

All SN74LVCH16240ADGGR 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 SN74LVCH16240ADGGR meets industry standards.

7.What is the process for return or replacement of SN74LVCH16240ADGGR?

All SN74LVCH16240ADGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVCH16240ADGGR, 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 SN74LVCH16240ADGGR part is unused and in its original packaging.

Return procedure for SN74LVCH16240ADGGR:

1.Submit a request within 90 days.

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

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