Nexperia USA Inc. 74LVT16245BDGG,118

Overview

74LVT16245BDGG,118 from Nexperia is a 3.3 V 16-bit bidirectional 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 bus hold inputs to eliminate external pull-ups. It serves as a level-shifting, high-drive interface between 3.3 V logic and 5 V buses in backplane or memory expansion systems.

For engineers reviewing the 74LVT16245BDGG,118 datasheet, 74LVT16245BDGG,118 pinout, 74LVT16245BDGG,118 application, or 74LVT16245BDGG,118 equivalent, key selection criteria include its dual 8-bit partitioning capability, overvoltage-tolerant 5.5 V inputs, IOFF partial power-down, and TSSOP48 package compatibility with high-density PCB layouts.

Technical Context

This BiCMOS transceiver implements two independent 8-bit bidirectional data paths, each controlled by dedicated OE and DIR signals-enabling simultaneous or isolated bus segment operation. Its bus hold circuitry actively maintains input logic states without external resistors, reducing BOM count and layout complexity.

IOFF protection disables output leakage when VCC = 0 V, supporting live insertion/extraction in hot-swap systems. Propagation delays are tightly specified: tPLH/tPHL ≤ 3.3 ns at VCC = 3.0–3.6 V, and 3-state enable/disable times (tPZH/tPLZ) ≤ 5.1 ns, ensuring timing-critical synchronous bus interfacing.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, designed for fine-pitch surface-mount assembly and thermal performance in dense logic interfaces.

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 74LVT16245BDGG,118 uniquely combines 5.5 V input tolerance, IOFF, bus hold, and live-insertion qualification-making it the only choice for mixed-voltage, hot-pluggable industrial backplanes.

Availability

74LVT16245BDGG,118 is available at Aetrix Electronics and suitable for memory expansion interfaces, backplane data bridges, hot-swappable module interfaces, and legacy system upgrade adapters requiring stable component supply and long-term industrial lifecycle support.

Supply support for 74LVT16245BDGG,118 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 logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVT/LVTH series delivers advanced BiCMOS transceivers optimized for 3.3 V system interfacing with robust 5 V tolerance, bus hold, and hot-swap readiness-targeting industrial control, telecom infrastructure, and modular computing platforms.

FAQ

Can 74LVT16245BDGG,118 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 VCC = 2.7 V. Operation outside this range risks timing violations and undefined logic states.

Does 74LVT16245BDGG,118 support true bidirectional auto-sensing like some USB transceivers?

No. Direction control is explicitly managed by the 1DIR and 2DIR inputs-there is no internal sensing or automatic direction detection. Data flow direction must be externally asserted prior to valid transfer; the device does not monitor bus activity or toggle direction autonomously.

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

The datasheet specifies dynamic performance up to 50 pF load capacitance (Table 9). With 64 mA sink capability and 3.3 ns typical propagation delay at 3.3 V, it reliably drives ≤50 pF-including PCB trace, connector, and input pin capacitance-while maintaining signal integrity and setup/hold timing margins in 100 MHz-class parallel buses.

How does the bus hold feature interact with externally pulled inputs?

Bus hold asserts ~100 μA retention current. If an external resistor pulls an input stronger than this (e.g., ≤10 kΩ to VCC/GND), the external bias dominates and overrides bus hold. Bus hold only engages when the pin is truly floating or weakly biased (>100 kΩ), making it fully compatible with intentional pull-up/down configurations.