Nexperia USA Inc. 74LVT16245BDGG,512

Overview

74LVT16245BDGG,512 from Nexperia is a 3.3 V, 16-bit bidirectional bus transceiver with dual 3-state control (1OE/2OE) and dual direction control (1DIR/2DIR), operating across 2.7–3.6 V supply, delivering ±64 mA output drive, and featuring overvoltage-tolerant 5.5 V inputs for mixed-voltage system interfacing in industrial backplane and memory expansion applications.

For engineers reviewing the 74LVT16245BDGG,512 datasheet, 74LVT16245BDGG,512 pinout, 74LVT16245BDGG,512 application, or 74LVT16245BDGG,512 equivalent, this device supports high-speed bidirectional data flow between 3.3 V logic domains and legacy 5 V buses while maintaining bus hold on unused inputs to eliminate external pull-ups and enabling live insertion in hot-swap systems.

Technical Context

This BiCMOS transceiver implements two independent 8-bit bidirectional channels, each with dedicated OE and DIR pins, allowing flexible partitioning as either one 16-bit or two 8-bit transceivers. Its IOFF circuitry ensures partial power-down isolation when VCC = 0 V, and bus hold inputs maintain defined logic states without external biasing.

Propagation delays are specified at ≤3.3 ns (tPLH/tPHL) and ≤5.1 ns (tPZL/tPLZ) under 3.0–3.6 V operation, with input transition rate support up to 10 ns/V. The device meets JEDEC JESD8C compliance and exceeds 500 mA latch-up immunity per JESD78 Class II Level B.

Key Specifications

Pinout & Package

TSSOP48 plastic thin shrink small outline package (SOT362-1), 48-pin, 6.1 mm body width, 0.5 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16245ADGGR and 74ALVCH16245PAG, the 74LVT16245BDGG,512 uniquely combines 5.5 V input tolerance, integrated bus hold, and ±64 mA drive in a single TSSOP48 package-making it optimal for industrial backplanes where robustness, mixed-voltage interoperability, and reduced external components are mandatory.

Availability

74LVT16245BDGG,512 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion subsystems, hot-swappable I/O modules, and multi-processor communication links requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVT16245BDGG,512 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 specializing in high-performance, high-reliability standard logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVT series targets high-speed 3.3 V digital interfacing applications, designed specifically for robust bidirectional bus translation in mixed-voltage systems with stringent ESD and latch-up immunity requirements.

FAQ

Can 74LVT16245BDGG,512 operate with a 2.5 V supply?

No. The device's recommended operating supply range is strictly 2.7 V to 3.6 V per Table 5 of the datasheet. At 2.5 V, VIH minimum (2.0 V) and VOL maximum (0.55 V) specifications cannot be guaranteed, and bus hold functionality degrades below 2.7 V. Operation outside this range risks timing violations and undefined logic states.

Does 74LVT16245BDGG,512 support hot-plug insertion without external protection?

Yes. Its IOFF circuitry disables output leakage when VCC = 0 V, and power-up 3-state behavior ensures all outputs remain high-impedance until VCC stabilizes above 1.2 V. This eliminates bus contention during live insertion, provided system-level hot-swap controllers manage power sequencing per JEDEC JESD63 guidelines.

What is the maximum capacitive load this transceiver can drive reliably?

At 3.3 V supply and 25 °C, the device maintains tPLH/tPHL ≤ 3.3 ns driving up to 50 pF (per Figure 5 test conditions). With 64 mA sink capability, it supports heavier loads than standard LVC devices-but sustained 64 mA output requires thermal derating above 70 °C ambient per the 500 mW Ptot limit.

How does bus hold functionality interact with externally pulled inputs?

Bus hold current (±75–135 μA) dominates weak external pull resistors (>33 kΩ), preserving intended logic state. However, strong pulls (<10 kΩ) override bus hold. The feature is intended for truly unused or intermittently connected lines-not as a substitute for intentional biasing in actively driven nets.