Texas Instruments 74AUC2G241DCURE4

Overview

74AUC2G241DCURE4 from Texas Instruments is a dual 1-bit noninverting buffer/driver with independent 3-state outputs, designed for 1.65-V to 1.95-V operation. It delivers ±8-mA output drive at 1.8 V, achieves 1.9 ns max propagation delay (tpd), supports Ioff partial-power-down mode, and operates down to 0.8 V. It serves in low-voltage memory address buffering, clock distribution, and bus interface applications where space-constrained, high-speed signal conditioning is required.

For engineers reviewing the 74AUC2G241DCURE4 datasheet, 74AUC2G241DCURE4 pinout, 74AUC2G241DCURE4 application, or 74AUC2G241DCURE4 equivalent, this page provides verified functional identity, DCU-package pin mapping, sub-2-ns timing performance at 1.8 V, Ioff-enabled power sequencing support, and validated alternative options for 3-state logic replacement in portable and embedded systems.

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 active low (1OE = L for Channel 1; 2OE = L for Channel 2), and enters high-impedance state when OE is inactive high.

It features Ioff circuitry that disables outputs during power-down to prevent backflow current, supports mixed-mode I/O (3.6-V tolerant inputs/outputs on 1.8-V supply), and uses TI's NanoFree™ packaging only in YZP variant - the 74AUC2G241DCURE4 uses standard US8 (DCU) VSSOP package with 8 terminals and 0.5-mm pitch.

Key Specifications

Pinout & Package

74AUC2G241DCURE4 is packaged in an 8-pin US8 (DCU) VSSOP package measuring 2.1 mm × 2.0 mm × 0.9 mm, with 0.5-mm lead pitch and exposed pad not present. Pin 1 is marked by a beveled corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G241DCUR and 74AUP2G241DCURE4, the 74AUC2G241DCURE4 uniquely balances sub-1-V operability, 1.9-ns speed at 1.8 V, and 3.6-V I/O tolerance - making it optimal for next-generation portable systems requiring both performance and mixed-voltage flexibility.

Availability

74AUC2G241DCURE4 is available at Aetrix Electronics and suitable for memory address buffering, low-power clock distribution, USB peripheral interface, and industrial sensor bus interface applications requiring stable component supply, RoHS-compliant sourcing, and long-term lifecycle continuity.

Supply support for 74AUC2G241DCURE4 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 company specializing in analog, embedded processing, and logic solutions, with leadership in low-power, high-performance logic families.

The 74AUC2G241DCURE4 belongs to TI's AUC sub-1-V Little Logic portfolio, engineered specifically for ultra-low-voltage, high-speed signal routing in portable, wearable, and energy-sensitive embedded systems.

FAQ

What is the minimum operating voltage for the 74AUC2G241DCURE4?

The 74AUC2G241DCURE4 operates down to 0.8 V, with guaranteed functionality and timing specifications defined from 0.8 V to 2.7 V. Its design is optimized for 1.65–1.95 V operation, delivering best-in-class 1.9 ns propagation delay and ±8-mA drive at 1.8 V. Below 1.65 V, parameters such as VOH and VOL degrade gradually but remain functional per datasheet limits.

Does the 74AUC2G241DCURE4 support hot-swap or partial-power-down operation?

Yes, the 74AUC2G241DCURE4 includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow during hot-swap or staggered power sequencing. This feature is fully characterized per JESD78 Class II latch-up testing and applies to all I/O pins, making the 74AUC2G241DCURE4 suitable for systems requiring robust power-management schemes.

Is the 74AUC2G241DCURE4 pin-compatible with other dual buffer variants in US8 (DCU) package?

Yes, the 74AUC2G241DCURE4 shares identical pinout and footprint with SN74LVC2G241DCUR and 74AUP2G241DCURE4 in the US8 (DCU) package. All three use the same 8-pin VSSOP layout with pin 1 at the beveled corner, enabling direct PCB-level substitution where electrical specs align with system requirements.

What is the maximum capacitive load the 74AUC2G241DCURE4 can drive while maintaining timing specs?

The 74AUC2G241DCURE4 timing specifications (tpd, ten, tdis) are guaranteed for CL = 15 pF (typical board trace + input capacitance). At CL = 30 pF, tpd increases to 1.6 ns (typ) at 1.8 V. Driving >30 pF may further increase delay and reduce noise margin; for heavier loads, consider adding series termination or using a higher-drive variant.

How does the 3.6-V I/O tolerance of the 74AUC2G241DCURE4 benefit mixed-voltage designs?

The 3.6-V I/O tolerance allows the 74AUC2G241DCURE4 to accept and transmit signals up to 3.6 V while powered from as low as 0.8 V - eliminating external level shifters when interfacing 1.8-V logic with 3.3-V controllers or peripherals. This simplifies BOM, reduces layout area, and improves signal integrity in mixed-supply domains.