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

Texas Instruments SN74AUC2G241DCTR

Name: SN74AUC2G241DCTR
Brand: Texas Instruments
SKU: SN74AUC2G241DCTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74AUC2G241DCTR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)

Datasheet:: SN74AUC2G241DCTR.pdf

Description:: IC BUFFER NON-INVERT 2.7V SM8

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Product details

Overview

SN74AUC2G241DCTR from Texas Instruments is a dual 1-bit noninverting buffer/driver with independent 3-state outputs, designed for 1.65–1.95 V operation and 3.6-V I/O tolerance. It delivers ±8-mA output drive at 1.8 V, achieves 1.9 ns max propagation delay (tpd), and consumes only 10 µA ICC at 1.8 V. It supports mixed-mode signal interfacing in low-voltage memory address and clock distribution systems.

For engineers reviewing the SN74AUC2G241DCTR datasheet, SN74AUC2G241DCTR pinout, SN74AUC2G241DCTR application, or SN74AUC2G241DCTR equivalent, key selection criteria include sub-1-V operability, Ioff partial-power-down support, 3.6-V tolerant I/O, latch-up immunity (>100 mA), and NanoFree™-compatible SSOP packaging for high-density PCB layouts.

Technical Context

This device implements two independent noninverting buffers, each with dedicated output-enable (1OE, 2OE) control. Each channel passes data from A input to Y output when its OE is asserted low (1OE = L for Channel 1; 2OE = L for Channel 2), entering high-impedance state otherwise. The logic is positive-true enable with active-low assertion per channel.

It features Ioff circuitry enabling safe partial-power-down operation-outputs are disabled and backflow current prevented when VCC = 0. Absolute maximum ratings allow VI/VO up to 3.6 V regardless of VCC, supporting robust level-shifting between 1.8-V cores and 3.3-V peripherals without external translators.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	0.8 V to 2.7 V - enables operation from sub-1-V logic up to 2.5-V systems; optimized for 1.65–1.95 V supply.
Max tpd	1.9 ns at 1.8 V, CL = 30 pF - ensures timing-critical clock and address buffering in high-speed digital interfaces.
Output Drive	±8 mA at 1.65 V - sufficient to drive 50-Ω transmission lines or multiple CMOS loads without external buffers.
Ioff Support	Yes - prevents current backflow during power sequencing; required for hot-swap and multi-rail system designs.
IOH/VOL & IOL/VOH	VOH ≥ 1.2 V @ IOL = –8 mA, VCC = 1.65 V; VOL ≤ 0.45 V @ IOL = 8 mA - guarantees rail-to-rail logic swing under full load.
ESD Rating	2000-V HBM, 200-V MM, 1000-V CDM - exceeds JEDEC standards for handling and board-level reliability.
Latch-Up	>100 mA per JESD 78 Class II - eliminates risk of destructive latch-up in noisy industrial environments.

Pinout & Package

SN74AUC2G241DCTR uses an 8-pin SSOP (DCT) package measuring 3.0 mm × 3.0 mm × 1.3 mm (max height), with 0.65-mm lead pitch and Q3 pin-1 quadrant orientation per tape-and-reel specification.

Pin/Terminal	Circuit Role	Design Meaning
1	VCC	Main power supply input; must be decoupled locally; powers both channels and internal logic.
2	1A	Input for Channel 1 buffer; accepts 0.8–3.6 V signals; compatible with 1.8-V and 3.3-V logic families.
3	1Y	Noninverting buffered output for Channel 1; 3-state controlled by 1OE; drives bidirectional buses.
4	GND	Ground reference for all internal circuitry; requires low-inductance connection to minimize noise coupling.
5	GND	Second ground terminal - improves thermal dissipation and reduces ground bounce in high-speed switching.
6	2Y	Noninverting buffered output for Channel 2; independently 3-state controlled by 2OE.
7	2A	Input for Channel 2 buffer; electrically identical to 1A; supports dual-channel parallel or staggered timing.
8	1OE	Active-low output-enable for Channel 1; tie to VCC via pullup if high-impedance state must be guaranteed at power-up.

Key Features

Feature	Design Value
Sub-1-V operability	Functional down to 0.8 V VCC - enables integration into ultra-low-power sensor nodes and battery-backed subsystems.
3.6-V I/O tolerance	Inputs and outputs withstand up to 3.6 V regardless of VCC - eliminates need for external level shifters in mixed-voltage systems.
Ioff partial-power-down	Outputs automatically disable when VCC = 0 - prevents backdrive damage during hot-plug or asymmetric power sequencing.
NanoFree™ package option	DCT SSOP is footprint-compatible with YZP DSBGA variants - allows scalable layout migration from prototyping to space-constrained production.
Low dynamic power	17 pF typical power-dissipation capacitance at 1.8 V - minimizes switching current and EMI in high-frequency clock fanout.

Applications

Memory Address Buffering	Low-Voltage Clock Distribution
Use Scenario: Driving address lines from a 1.8-V microcontroller to multiple 3.3-V SRAM chips in a compact embedded system. IC Role / Device Role / Timing Role: Dual noninverting buffer providing level-shifted, low-skew address propagation with independent channel enable control. Use Value: Eliminates discrete level shifters while maintaining <1.9 ns propagation delay and 3.6-V I/O tolerance across both channels.	Use Scenario: Fanout of a 1.8-V system clock to three low-power peripherals operating at different voltage domains. IC Role / Device Role / Timing Role: Dual 3-state driver enabling dynamic clock gating per peripheral via separate 1OE/2OE controls. Use Value: Reduces jitter accumulation with matched tpd (≤1.9 ns) and supports power-gating via Ioff during idle periods.
Hot-Swappable I/O Expansion	Mixed-Mode Bus Transceiver Interface
Use Scenario: Adding modular I/O cards to a mainboard where VCC may be sequenced asynchronously during insertion. IC Role / Device Role / Timing Role: Isolation buffer ensuring no backfeed occurs between powered/unpowered card slots. Use Value: Ioff protection prevents damage during hot-swap events; 3.6-V tolerant I/O accommodates legacy 3.3-V modules.	Use Scenario: Interfacing a 1.8-V FPGA I/O bank to a 2.5-V SPI flash memory with shared bidirectional data lines. IC Role / Device Role / Timing Role: Direction-controlled buffer enabling clean bus arbitration using OE signals as direction proxies. Use Value: Independent 3-state control per channel allows precise timing alignment of read/write strobes without contention.

Memory Address Buffering

Low-Voltage Clock Distribution

Use Scenario: Driving address lines from a 1.8-V microcontroller to multiple 3.3-V SRAM chips in a compact embedded system.

IC Role / Device Role / Timing Role: Dual noninverting buffer providing level-shifted, low-skew address propagation with independent channel enable control.

Use Value: Eliminates discrete level shifters while maintaining <1.9 ns propagation delay and 3.6-V I/O tolerance across both channels.

Use Scenario: Fanout of a 1.8-V system clock to three low-power peripherals operating at different voltage domains.

IC Role / Device Role / Timing Role: Dual 3-state driver enabling dynamic clock gating per peripheral via separate 1OE/2OE controls.

Use Value: Reduces jitter accumulation with matched tpd (≤1.9 ns) and supports power-gating via Ioff during idle periods.

Hot-Swappable I/O Expansion

Mixed-Mode Bus Transceiver Interface

Use Scenario: Adding modular I/O cards to a mainboard where VCC may be sequenced asynchronously during insertion.

IC Role / Device Role / Timing Role: Isolation buffer ensuring no backfeed occurs between powered/unpowered card slots.

Use Value: Ioff protection prevents damage during hot-swap events; 3.6-V tolerant I/O accommodates legacy 3.3-V modules.

Use Scenario: Interfacing a 1.8-V FPGA I/O bank to a 2.5-V SPI flash memory with shared bidirectional data lines.

IC Role / Device Role / Timing Role: Direction-controlled buffer enabling clean bus arbitration using OE signals as direction proxies.

Use Value: Independent 3-state control per channel allows precise timing alignment of read/write strobes without contention.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AUC2G125DCTR	Inverting logic (A → Y̅); same VCC range, tpd, and Ioff support; identical DCT package.	Requires logic inversion in signal path; unsuitable where polarity preservation is mandatory (e.g., clock forwarding).	Select only when system-level inversion is acceptable or compensated elsewhere in timing chain.
SN74LVC2G241DCTR	Higher ICC (10 µA vs. 10 µA typical but up to 20 µA max); wider VCC range (1.65–5.5 V); lower drive (±24 mA @ 3.3 V).	Better suited for 3.3-V or 5-V mixed systems; less optimal for sub-1.8-V operation due to higher VIH/VIL thresholds.	Prefer for legacy 3.3-V designs requiring higher noise margin; avoid when sub-1.8-V operation or minimal ICC is critical.

Compared with SN74AUC2G241DCTR, SN74AUC2G125DCTR offers functional equivalence except for polarity, while SN74LVC2G241DCTR trades ultra-low-voltage capability for broader voltage flexibility and higher drive-making SN74AUC2G241DCTR the optimal choice for 1.8-V-centric, power-sensitive designs.

Availability

SN74AUC2G241DCTR is available at Aetrix Electronics and suitable for memory address buffering, low-voltage clock distribution, and hot-swappable I/O expansion requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for SN74AUC2G241DCTR 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 logic solutions, with decades of innovation in low-power, high-speed interface ICs.

The SN74AUC2G241DCTR belongs to TI's AUC Sub-1-V Little Logic family, engineered specifically to improve density and performance of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in portable and energy-constrained systems.

FAQ

What is the minimum operating voltage for SN74AUC2G241DCTR?

The SN74AUC2G241DCTR operates down to 0.8 V VCC, with guaranteed functionality across the full 0.8–2.7 V range. Its design is optimized for 1.65–1.95 V operation, where parameters like tpd = 1.9 ns and ±8-mA drive are specified. Below 1.65 V, timing and drive strength degrade gradually but remain functional per datasheet limits.

Does SN74AUC2G241DCTR support level shifting between 1.8-V and 3.3-V logic domains?

Yes, SN74AUC2G241DCTR supports true level shifting: inputs and outputs tolerate up to 3.6 V regardless of VCC, allowing direct connection to 3.3-V peripherals while powered from a 1.8-V rail. No external resistors or translators are needed, and VIH/VIL thresholds scale with VCC (e.g., VIH = 0.65×VCC at 1.65–1.95 V), preserving noise margins.

How does the Ioff feature work in SN74AUC2G241DCTR?

The Ioff circuitry in SN74AUC2G241DCTR disables all outputs when VCC = 0 V, preventing current backflow from live I/O lines into the unpowered device. This protects both SN74AUC2G241DCTR and upstream/downstream components during partial-power-down sequences, hot-swap events, or asymmetric supply ramping-critical in modular or multi-rail systems.

Can SN74AUC2G241DCTR replace SN74LVC2G241DCTR in a 1.8-V design?

SN74AUC2G241DCTR can replace SN74LVC2G241DCTR in 1.8-V designs where ultra-low power and minimal propagation delay are priorities: it draws lower ICC (10 µA vs. up to 20 µA), achieves faster tpd (1.9 ns vs. ~2.5 ns), and operates reliably below 1.65 V. However, verify that 3.6-V I/O tolerance suffices-LVC offers 5.5-V tolerance, which may be needed for 5-V legacy interfaces.

What is the recommended power supply decoupling for SN74AUC2G241DCTR?

TI recommends a 0.1-µF ceramic capacitor placed as close as possible to the VCC pin (Pin 1) and GND pins (Pins 4 and 5) of SN74AUC2G241DCTR. For boards with multiple devices or high-frequency switching, add a bulk 4.7-µF tantalum or aluminum polymer capacitor near the power entry point. Avoid shared vias between VCC and GND traces to minimize ground bounce.

SN74AUC2G241DCTR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74AUC

Package/Case:: 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 2

Number of Bits per Element:: 1

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 9mA, 9mA

Voltage - Supply:: 0.8V ~ 2.7V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SM8

SN74AUC2G241DCTR FAQ

1.How can I place an order for SN74AUC2G241DCTR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74AUC2G241DCTR 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 SN74AUC2G241DCTR reliable?

The price and inventory of SN74AUC2G241DCTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC2G241DCTR is usually 5 days.

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SN74AUC2G241DCTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74AUC2G241DCTR 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 SN74AUC2G241DCTR?

For technical support, including SN74AUC2G241DCTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC2G241DCTR requirements.

6.How does Aetrix verify that SN74AUC2G241DCTR is sourced from the original manufacturer or authorized distributors?

All SN74AUC2G241DCTR 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 SN74AUC2G241DCTR meets industry standards.

7.What is the process for return or replacement of SN74AUC2G241DCTR?

All SN74AUC2G241DCTR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC2G241DCTR, 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 SN74AUC2G241DCTR part is unused and in its original packaging.

Return procedure for SN74AUC2G241DCTR:

1.Submit a request within 90 days.

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

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