Texas Instruments SN74LVTH16241DGGR

Overview

SN74LVTH16241DGGR from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, designed for mixed-mode interfacing between 3.3-V logic and 5-V systems. It features four independent 4-bit sections, bus-hold on all data inputs, Ioff support for hot insertion, and operates from –40°C to 85°C with VCC = 2.7 V to 3.6 V. Used in backplane and motherboard data routing where level translation and bus isolation are required.

For engineers reviewing the SN74LVTH16241DGGR datasheet, SN74LVTH16241DGGR pinout, SN74LVTH16241DGGR application, or SN74LVTH16241DGGR equivalent, key selection criteria include 3-state enable timing (tPZH/tPLZ ≤ 5.3 ns), output drive strength (IOL = 64 mA at VCC = 3 V), bus-hold current (±750 µA), and TSSOP-48 thermal performance (θJA = 89°C/W).

Technical Context

This device implements Advanced BiCMOS Technology (ABT) to deliver TTL-compatible output levels while operating from a 3.3-V supply. Each of its four 4-bit sections has complementary OE/OE controls and noninverting logic paths, enabling flexible bus segmentation and direction control.

It supports unregulated battery operation down to 2.7 V and includes distributed VCC/GND pins to suppress high-speed switching noise. Power-up 3-state and Ioff circuitry ensure safe hot-insertion by forcing outputs into high-impedance during power transitions and blocking reverse current when powered down.

Key Specifications

Pinout & Package

TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm body, 0.5-mm pitch, lead-free NiPdAu finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit buffer/driver applications.

Compared with SN74LVTH16241DGGR, SN74LVC16244ADGGR trades off drive capability and bus-hold for lower static power and cost, while SN74ALVCH16244VR improves propagation delay but sacrifices 5-V input tolerance - making SN74LVTH16241DGGR the only option supporting legacy TTL interfacing with robust hot-swap behavior.

Availability

SN74LVTH16241DGGR is available at Aetrix Electronics and suitable for industrial backplane buffering, server memory subsystems, and automated test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for SN74LVTH16241DGGR 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 for industrial, automotive, and communications markets.

The SN74LVTH16241DGGR belongs to TI's Widebus™ family of advanced 3.3-V ABT logic devices, engineered for high-speed, low-noise data routing in mixed-voltage system architectures.

FAQ

What is the maximum operating temperature range for the SN74LVTH16241DGGR?

The SN74LVTH16241DGGR is characterized for operation from –40°C to +85°C ambient temperature. This industrial-grade rating ensures reliable performance in demanding environments such as factory automation controllers and telecom infrastructure equipment. The device maintains full electrical specifications-including output drive, timing, and bus-hold functionality-across this entire range. Thermal derating is not required below 85°C due to its 89°C/W junction-to-ambient thermal resistance in the TSSOP-48 package.

Does the SN74LVTH16241DGGR support hot-plug insertion?

Yes, the SN74LVTH16241DGGR supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0, preventing damaging current backflow, and power-up 3-state forces outputs into high-impedance during power ramp-up or ramp-down. These functions are verified per JEDEC JESD78 and MIL-STD-883 requirements. For proper implementation, OE pins must be pulled to VCC and OE pins to GND using appropriate resistors-minimum values depend on driver sink/source capability as specified in the datasheet.

Can the SN74LVTH16241DGGR interface directly with 5-V logic systems?

Yes, the SN74LVTH16241DGGR supports mixed-mode operation: its inputs tolerate 5-V signals even when VCC = 3.3 V, and its outputs drive standard TTL loads at 5 V. This is achieved through ABT process design and internal clamping structures. Input voltage range is –0.5 V to 7 V, and output high-level voltage meets VOH ≥ 2.0 V at IOL = –24 mA with VCC = 3 V. No external level-shifting components are needed, simplifying interconnection between legacy 5-V subsystems and modern 3.3-V controllers.

What is the purpose of the complementary OE and OE pins on the SN74LVTH16241DGGR?

The SN74LVTH16241DGGR uses complementary active-low OE and active-high OE inputs per 4-bit section to simplify control logic in systems where enable signals originate from different voltage domains or polarity conventions. When OE is low and OE is high, the associated Y outputs are enabled; if either is violated, outputs enter high-impedance. This dual-input scheme allows direct connection to microcontroller GPIOs (OE) and hardware reset lines (OE), or integration with existing 3-state bus arbitration schemes without inverters. Pin 1 (1OE) and pin 48 (4OE) follow this pairing convention across all four sections.

How does bus-hold functionality work on the SN74LVTH16241DGGR inputs?

Bus-hold circuitry on the SN74LVTH16241DGGR actively maintains the last-valid logic state on each data input (A1–A16) when left floating, using ±750 µA dynamic feedback current at VCC = 3.6 V. This eliminates the need for external pullup or pulldown resistors in systems with unterminated stubs or infrequently driven lines-reducing BOM count and PCB area. Bus-hold engages automatically; no configuration is required. It operates across the full temperature range and remains functional even during brownout conditions down to VCC = 2.7 V.