Texas Instruments SN74LVC2G34YEAR

Overview

SN74LVC2G34YEAR from Texas Instruments is a dual non-inverting buffer gate IC designed for 1.65-V to 5.5-V V_CC operation, performing Y = A logic on two independent channels. It delivers ±24-mA output drive at 3.3 V, achieves 4.1 ns max propagation delay at 3.3 V, and supports 5.5-V-tolerant inputs - enabling voltage-level translation in portable audio, SSD, and embedded PC signal routing.

For engineers reviewing the SN74LVC2G34YEAR datasheet, SN74LVC2G34YEAR pinout, SN74LVC2G34YEAR application, or SN74LVC2G34YEAR equivalent, key selection criteria include I_off-enabled partial-power-down capability, NanoFree™ DSBGA-6 package footprint, 10-µA max ICC quiescent current, and compatibility with 1.65–5.5-V mixed-voltage system interfacing.

Technical Context

The SN74LVC2G34YEAR implements two independent CMOS buffer stages with rail-to-rail output swing and balanced rise/fall times. Its I_off circuitry actively disables outputs when V_CC = 0 V, blocking back-current flow and supporting live insertion in hot-swap systems.

Input tolerance up to 5.5 V allows down-translation from higher-voltage domains (e.g., 5-V microcontroller GPIO) to lower V_CC rails (e.g., 1.8-V or 3.3-V logic), while ESD protection exceeds 2000-V HBM and 1500-V CDM per JESD22 standards.

Key Specifications

Pinout & Package

SN74LVC2G34YEAR is packaged in a 6-ball DSBGA (YZP) measuring 1.41 mm × 0.91 mm, using NanoFree™ technology where the silicon die serves as the package substrate - minimizing footprint and thermal resistance (R_θJA = 123°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G126YEAR and SN74AUP2G34DBVR, SN74LVC2G34YEAR uniquely combines non-inverting logic, 5.5-V input tolerance, ±24-mA drive at 3.3 V, and NanoFree™ DSBGA packaging - making it optimal for space-constrained, multi-rail portable electronics.

Availability

SN74LVC2G34YEAR is available at Aetrix Electronics and suitable for portable audio, SSD control logic, and embedded PC peripheral interface applications requiring stable component supply, long-term lifecycle support, and consistent NanoFree™ DSBGA-6 sourcing.

Supply support for SN74LVC2G34YEAR 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 over 50 years of innovation in high-reliability, low-power IC design.

The SN74LVC2G34YEAR belongs to TI's LVC logic family - engineered for broad-voltage operation (1.65–5.5 V), high noise immunity, and seamless integration in portable, consumer, and industrial digital systems.

FAQ

What is the operating voltage range for SN74LVC2G34YEAR?

The SN74LVC2G34YEAR operates from 1.65 V to 5.5 V on V_CC, with inputs tolerant up to 5.5 V regardless of V_CC level. This allows use in mixed-supply systems - for example, translating 5-V microcontroller outputs to a 1.8-V FPGA domain. The specified range is validated across –40°C to 85°C ambient temperature for the YZP package.

Does SN74LVC2G34YEAR support partial power-down functionality?

Yes, SN74LVC2G34YEAR features I_off circuitry that disables outputs when V_CC = 0 V, limiting I_off to ±10 µA maximum. This prevents damaging current backflow during hot-swap or system power sequencing - critical in SSD modules and docking stations where SN74LVC2G34YEAR may remain connected while host power is cycled.

What package type is used for SN74LVC2G34YEAR?

SN74LVC2G34YEAR uses the NanoFree™ 6-ball DSBGA (YZP) package, measuring 1.41 mm × 0.91 mm. Unlike traditional leaded packages, NanoFree™ eliminates the leadframe - using the silicon die itself as the package substrate - resulting in minimal footprint, reduced inductance, and improved thermal performance (R_θJA = 123°C/W).

Can SN74LVC2G34YEAR drive LEDs directly?

Yes, SN74LVC2G34YEAR can drive standard indicator LEDs directly: its ±24-mA output drive at 3.3 V supports common anode/cathode configurations with appropriate series resistors. For example, at 3.3 V with a 150-Ω resistor, it delivers ~15 mA - well within spec and eliminating need for external transistor drivers in low-power UI applications.

What is the maximum propagation delay of SN74LVC2G34YEAR at 3.3 V?

The maximum propagation delay (t_pd) of SN74LVC2G34YEAR is 4.1 ns at V_CC = 3.3 V and T_A = –40°C to 85°C. This value is measured under loaded conditions (30-pF CL, 500-Ω RL) and ensures timing compliance in high-speed digital paths such as I²C clock extension, GPIO fanout, and SSD command buffering where sub-5-ns latency is required.