Nexperia USA Inc. 74LVTH16244BDGG,51

Overview

74LVTH16244BDGG,51 from Nexperia is a 3.3 V, 16-bit non-inverting 3-state buffer/driver with four independent output-enable controls (1OE–4OE), bus-hold inputs, and ±32 mA/±64 mA drive capability. It operates from 2.7 V to 3.6 V, tolerates 5.5 V inputs, and supports -40 °C to +85 °C industrial temperature range. Used in high-speed bus interface applications such as memory address/data buffering in embedded controllers and FPGA I/O expansion.

For engineers reviewing the 74LVTH16244BDGG,51 datasheet, 74LVTH16244BDGG,51 pinout, 74LVTH16244BDGG,51 application, or 74LVTH16244BDGG,51 equivalent, key selection criteria include 3-state timing (tPZH ≤ 4.0 ns), overvoltage-tolerant inputs, bus-hold functionality eliminating external pull-ups, and TSSOP48 package compatibility with dense PCB layouts.

Technical Context

This BiCMOS device implements four independent 4-bit buffer sections, each controlled by a dedicated active-low output enable (1OE–4OE). Each section buffers four data inputs (nA0–nA3) to corresponding outputs (nY0–nY3) with true non-inverting logic and high-impedance OFF-state when enabled low.

Bus-hold circuitry maintains valid logic states on unused inputs without external resistors, and IOFF protection ensures minimal leakage during partial power-down. Input clamping supports 5.5 V tolerance while operating at 3.3 V supply, enabling direct interfacing with TTL and mixed-voltage systems.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead finish matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.

Compared with SN74LVC16244ADGGR, the 74LVTH16244BDGG,51 adds bus-hold and higher drive for robust legacy integration; versus 74ALVCH16244DGG,118, it trades minor speed reduction for broader availability and identical qualification status at lower cost.

Availability

74LVTH16244BDGG,51 is available at Aetrix Electronics and suitable for industrial control systems, FPGA carrier board development, and memory subsystem design requiring stable component supply across extended product lifecycles.

Supply support for 74LVTH16244BDGG,51 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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.

The 74LVTH series targets industrial and computing applications demanding robust 3.3 V logic with mixed-voltage interoperability, bus integrity, and long-term supply stability.

FAQ

What is the maximum clock frequency supported by the 74LVTH16244BDGG,51?

The device does not operate on a clock; it is an asynchronous buffer. Its usable data rate depends on propagation delay and system timing margins. With tPLH/tPHL ≤ 3.2 ns and tPZH/tPZL ≤ 4.0 ns at 3.3 V, it reliably supports bus cycles down to ~200 MHz (5 ns period), assuming proper PCB layout and load capacitance ≤50 pF.

Can the 74LVTH16244BDGG,51 be used with a 2.5 V supply?

No. The recommended operating supply range is strictly 2.7 V to 3.6 V per JEDEC JESD8C. At 2.5 V, VIH/VIL thresholds and output drive fall outside specification, risking logic misreads and insufficient noise margin. Use 74LVC16244 for 2.5 V–3.6 V operation.

How does bus-hold functionality affect power consumption?

Bus-hold draws ±75 μA to ±135 μA per enabled input at VCC = 3 V, adding <1.5 mA total worst-case for all 16 inputs. This is offset by eliminating 16 pull-up resistors (typically 4.7 kΩ → ~1 mA each at 3.3 V), yielding net system-level power reduction and improved reliability.

Is the 74LVTH16244BDGG,51 automotive qualified?

No. This part is specified for industrial temperature range (-40 °C to +85 °C) and is not AEC-Q100 qualified. Nexperia does not list it in automotive-grade product families. For automotive applications, consider the pin-compatible 74ALVCH16244QDGG,118 (AEC-Q100 Grade 2).