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

Nexperia USA Inc. 74ALVCH16244DGG:11

Name: 74ALVCH16244DGG:11
Brand: Nexperia USA Inc.
SKU: 74ALVCH16244DGG:11
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVCH16244DGG:11

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74ALVCH16244DGG:11.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74ALVCH16244DGG:11 from Nexperia is a 16-bit CMOS buffer/line driver with 3-state outputs, four independent output enables (1OE–4OE), bus-hold inputs, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V, delivers ±24 mA drive at 3.0 V, and supports 2.5 V/3.3 V logic interfacing in memory address/data bus expansion systems.

For engineers reviewing the 74ALVCH16244DGG:11 datasheet, 74ALVCH16244DGG:11 pinout, 74ALVCH16244DGG:11 application, or 74ALVCH16244DGG:11 equivalent, this page provides verified functional architecture, TSSOP48 pin mapping, bus-hold behavior, IOFF safety timing, and direct TTL-level compatibility without external biasing.

Technical Context

This device implements four independent 4-bit non-inverting buffers, each controlled by a dedicated active-low output enable (1OE–4OE). Each buffer group features bus-hold circuitry on all 16 inputs-eliminating need for external pull resistors-and IOFF protection that disables outputs during partial power-down to prevent backflow current.

It supports mixed-voltage operation: inputs tolerate up to 5.5 V regardless of VCC, enabling safe interfacing with 5 V legacy systems while powered from 2.5 V or 3.3 V rails. Propagation delay is as low as 1.0 ns at VCC = 3.3 V (CL = 50 pF), with enable/disable times under 4.0 ns.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.2 V to 3.6 V - Enables single-rail operation across 1.8 V, 2.5 V, and 3.3 V logic domains
Output Drive Strength	±24 mA at VCC = 3.0 V - Sufficient to drive 50 Ω transmission lines directly at 85 °C
Propagation Delay	1.0 ns (typ) at VCC = 3.3 V, CL = 50 pF - Supports high-speed bus buffering up to ~350 MHz toggle rate
Bus-Hold Current	IBHL = 45 μA (min) at VCC = 2.3 V - Actively holds floating inputs at valid logic levels without external components
IOFF Leakage	IOZ < 10 μA at VCC = 3.6 V - Prevents damaging back-current when VCC = 0 V and I/O pins are biased
Input Voltage Tolerance	−0.5 V to VCC + 0.5 V (74ALVC); −0.5 V to 5.5 V (74ALVCH) - Allows 5 V-tolerant input operation on 2.5 V/3.3 V supplies
Operating Temperature	−40 °C to +85 °C - Qualified for industrial-grade embedded control and data acquisition systems

Pinout & Package

TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch, lead-free and RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 24, 25, 48	1OE, 4OE, 3OE, 2OE	Active-low output enables - Independently control four 4-bit output groups; HIGH forces high-impedance state
2–3, 5–6, 8–9, 11–12, 13–14, 16–17, 19–20, 22–23	1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3	16 buffered non-inverting outputs - Each pair corresponds to one input group; 3-state capable
4, 10, 15, 21, 28, 34, 39, 45	GND	Eight ground terminals - Minimize ground bounce and improve noise immunity via distributed grounding
7, 18, 31, 42	VCC	Four supply pins - Reduce supply inductance and support stable operation at high switching frequencies
43–44, 46–47, 32–33, 35–36, 26–27, 29–30, 37–38, 40–41	1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3	16 data inputs with bus-hold - Internally latched to last valid logic level when floating

Key Features

Feature	Design Value
MultiByte flow-through pinout	Input/output pairs aligned across package width - Simplifies PCB routing and reduces trace skew in parallel bus layouts
IOFF partial power-down	Outputs automatically enter high-Z when VCC = 0 V - Enables hot-swap and power-gating in multi-rail systems
Overvoltage-tolerant inputs	Withstands 5.5 V on any input while VCC = 2.5 V - Eliminates level shifters when interfacing with 5 V peripherals
Low-noise supply design	Four VCC and eight GND pins - Reduces simultaneous switching noise (SSN) and improves signal integrity at >100 MHz
JEDEC-compliant interface	Meets JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V) - Guarantees interoperability across voltage-standardized logic families

Applications

Memory Address Buffering

Industrial I/O Expansion

Use Scenario: Buffering 16-bit address lines between microcontroller and SRAM/Flash in programmable logic controllers.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer with per-group enable - Isolates memory bus during DMA cycles and prevents contention.

Use Value: Bus-hold maintains valid address states during reset or sleep; IOFF prevents backfeed when memory rail is powered down independently.

Use Scenario: Driving 16-bit parallel GPIO expansion on PLC backplanes with mixed 2.5 V/3.3 V signaling.

IC Role / Device Role / Timing Role: Level-translating line driver - Accepts 5 V sensor inputs while sourcing/sinking ±24 mA into 3.3 V loads.

Use Value: 5.5 V-tolerant inputs eliminate external clamping diodes; four OE pins allow staggered output activation to limit inrush current.

Test Equipment Data Bus

Communications Backplane Interface

Use Scenario: Bidirectional data path conditioning in automated test equipment (ATE) fixture boards.

IC Role / Device Role / Timing Role: High-speed 16-bit buffer with sub-4 ns enable/disable - Enables precise timing control for pattern generation and capture windows.

Use Value: 1.0 ns propagation delay ensures setup/hold compliance at 200+ MHz; low CPD (25 pF enabled) minimizes dynamic power in dense layouts.

Use Scenario: Interfacing FPGA I/O banks to legacy parallel backplane buses in telecom line cards.

IC Role / Device Role / Timing Role: Signal integrity enhancer - Compensates for trace loss and crosstalk via strong drive and distributed grounding.

Use Value: Eight GND pins reduce ground bounce below 50 mV peak; 50 Ω line drive capability matches standard backplane impedance.

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
SN74ALVTH16244DGGR	TI part with higher drive (±32 mA), no bus-hold, supports 2.3–3.6 V only	Lacks bus-hold; requires external pull resistors on unused inputs	Select when maximum drive strength is critical and board space allows discrete biasing
74LVC16244APAG	IDT part with identical bus-hold and IOFF, but only 1.65–3.6 V range and no 5.5 V tolerance	Not 5 V-tolerant - unsuitable for mixed-voltage legacy interfaces	Select when system uses only 1.8 V/3.3 V rails and cost sensitivity outweighs 5 V compatibility

Compared with SN74ALVTH16244DGGR and 74LVC16244APAG, the 74ALVCH16244DGG:11 uniquely combines 5.5 V input tolerance, integrated bus-hold, and industrial temperature range in a single TSSOP48 package-making it optimal for retrofitting legacy 5 V systems onto modern low-voltage MCUs without redesigning bias networks or adding level shifters.

Availability

74ALVCH16244DGG:11 is available at Aetrix Electronics and suitable for memory subsystem buffering, industrial I/O expansion, and test equipment data path conditioning requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for 74ALVCH16244DGG:11 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74ALVCH series targets industrial and communications infrastructure applications where robustness, wide supply range, and mixed-voltage interoperability are essential-designed specifically for reliable bus buffering in harsh or thermally constrained environments.

FAQ

Does 74ALVCH16244DGG:11 support hot-plug operation?

Yes. Its IOFF circuitry actively disables outputs and limits leakage to <10 μA when VCC = 0 V, preventing back-current flow from live I/O lines into a powered-down device-enabling safe insertion/removal in multi-rail backplane systems without risk of latch-up or damage.

Can unused inputs be left floating?

Yes. All 16 data inputs feature integrated bus-hold circuitry that maintains the last valid logic state without external resistors. At VCC = 2.3 V, IBHL is ≥45 μA, ensuring stable HIGH or LOW retention even with PCB trace capacitance up to 10 pF.

What is the maximum clock frequency supported for data throughput?

While not a clocked device, its 1.0 ns typical propagation delay at VCC = 3.3 V and CL = 50 pF supports reliable data toggling up to ~350 MHz in point-to-point configurations. System-level bandwidth is limited by trace length, termination, and load capacitance-not internal gate delay.

Is 74ALVCH16244DGG:11 pin-compatible with 74ALVC16244DGG?

Yes-identical TSSOP48 pinout and function. The key difference is input voltage tolerance: 74ALVCH16244DGG supports 5.5 V-tolerant inputs, while 74ALVC16244DGG is rated only to VCC + 0.5 V. Electrical and timing specs are otherwise matched per datasheet Rev. 6.

74ALVCH16244DGG:11 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74ALVCH

Package/Case:: 48-TFSOP (0.240", 6.10mm 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:: 1.2V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

74ALVCH16244DGG:11 FAQ

1.How can I place an order for 74ALVCH16244DGG:11 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVCH16244DGG:11 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 74ALVCH16244DGG:11 reliable?

The price and inventory of 74ALVCH16244DGG:11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16244DGG:11 is usually 5 days.

3.What payment methods are accepted for 74ALVCH16244DGG:11?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16244DGG:11 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ALVCH16244DGG:11?

74ALVCH16244DGG:11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVCH16244DGG:11 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 74ALVCH16244DGG:11?

For technical support, including 74ALVCH16244DGG:11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16244DGG:11 requirements.

6.How does Aetrix verify that 74ALVCH16244DGG:11 is sourced from the original manufacturer or authorized distributors?

All 74ALVCH16244DGG:11 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 74ALVCH16244DGG:11 meets industry standards.

7.What is the process for return or replacement of 74ALVCH16244DGG:11?

All 74ALVCH16244DGG:11 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16244DGG:11, 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 74ALVCH16244DGG:11 part is unused and in its original packaging.

Return procedure for 74ALVCH16244DGG:11:

1.Submit a request within 90 days.

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

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