Nexperia USA Inc. 74LVTH16245BDL,112

Overview

74LVTH16245BDL,112 from Nexperia is a 3.3 V, 16-bit bidirectional bus transceiver with 3-state outputs, dual direction control (1DIR/2DIR), dual output enable (1OE/2OE), and bus hold inputs eliminating external pull-ups. It operates from 2.7 V to 3.6 V, tolerates 5.5 V inputs, and delivers ±64 mA drive-used in high-speed backplane and memory interface buffering between mixed-voltage domains.

For engineers reviewing the 74LVTH16245BDL,112 datasheet, 74LVTH16245BDL,112 pinout, 74LVTH16245BDL,112 application, or 74LVTH16245BDL,112 equivalent, key selection criteria include its 3.3 V BiCMOS logic compatibility, 5.5 V overvoltage-tolerant inputs, bus hold functionality, 3.3 ns max propagation delay at 3.3 V, and TSSOP48 thermal/power behavior under industrial temperature range (-40 °C to +85 °C).

Technical Context

This transceiver implements two independent 8-bit bidirectional data paths, each controlled by dedicated DIR and OE signals-enabling flexible partitioning as either one 16-bit or two 8-bit interfaces. Its BiCMOS architecture combines bipolar speed with CMOS low power, supporting live insertion and IOFF partial power-down mode.

The device features bus hold circuitry on all data pins (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7), maintaining valid logic states on unused inputs without external resistors. Input clamping and 5.5 V tolerance allow safe interfacing with 5 V systems while powered from 3.3 V.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1): plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch - optimized for high-density PCB layouts with improved thermal dissipation vs. SSOP.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit transceiver applications.

Compared with SN74LVC16245ADGGR and 74ALVCH16245PAG, the 74LVTH16245BDL,112 uniquely combines 5.5 V input tolerance, integrated bus hold, and ±64 mA drive-making it the only option among the three qualified for direct 5 V/3.3 V domain bridging in industrial hot-swap systems.

Availability

74LVTH16245BDL,112 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, telecom backplane translation, and test equipment signal routing requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 74LVTH16245BDL,112 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 with focus on efficiency, reliability, and miniaturization for industrial and consumer applications.

The 74LVTH series targets high-speed, mixed-voltage digital interfacing-designed specifically for robust 3.3 V system integration with legacy 5 V infrastructure in networking, automation, and instrumentation.

FAQ

What is the maximum clock/data rate supported by the 74LVTH16245BDL,112?

The device supports data rates up to 100 MHz in typical configurations, based on its 3.3 ns maximum propagation delay (tPLH/tPHL) and 4.6 ns maximum 3-state disable time (tPLZ). System-level timing must account for PCB trace delays and load capacitance, but the IC itself meets setup/hold requirements for 10 ns cycle times at 3.3 V supply.

Does the 74LVTH16245BDL,112 require external pull-up resistors on unused inputs?

No. All data I/O pins (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7) feature integrated bus hold circuitry that maintains the last valid logic state without external components. This eliminates the need for 10 kΩ pull-up or pull-down resistors on floating inputs, reducing BOM cost and layout complexity.

Can the 74LVTH16245BDL,112 be used in hot-swap applications?

Yes. The device supports live insertion and extraction due to its IOFF circuitry-which disables output leakage when VCC = 0 V-and bus hold functionality that prevents floating inputs during power ramp-up/down. These features meet requirements for modular chassis systems where boards are inserted or removed while main power remains active.

How does the 74LVTH16245BDL,112 handle 5 V signals while operating at 3.3 V supply?

Its inputs are overvoltage tolerant to 5.5 V, allowing direct connection to 5 V logic without damage or level translation. Internally, input clamping diodes and BiCMOS input stages ensure correct logic interpretation (VIH ≥ 2.0 V, VIL ≤ 0.8 V) even when driven from 5 V sources-enabling seamless interoperability in mixed-voltage systems.