Nexperia USA Inc. 74ALVC16245DGG,118

Overview

74ALVC16245DGG,118 from Nexperia is a 16-bit dual 8-bit bus transceiver with independent direction and output-enable controls, 3-state outputs, Schmitt-trigger inputs, IOFF partial power-down protection, and 1.2 V to 3.6 V supply operation. It supports bidirectional data flow between two 8-bit buses or one 16-bit bus in memory expansion, peripheral interfacing, and level-shifting applications.

For engineers reviewing the 74ALVC16245DGG,118 datasheet, 74ALVC16245DGG,118 pinout, 74ALVC16245DGG,118 application, or 74ALVC16245DGG,118 equivalent, this device is selected for low-voltage bidirectional bus isolation with robust noise immunity, TTL compatibility, and bus-hold-free operation (74ALVC variant).

Technical Context

This transceiver implements dual independent 8-bit channels, each with dedicated DIR and OE pins (1DIR/1OE and 2DIR/2OE), enabling asynchronous control of data direction and output state. Schmitt-trigger inputs ensure reliable switching with slow-rising signals, while IOFF circuitry actively disables outputs during power-down to prevent backflow current.

The device operates across 1.2 V–3.6 V, supports 5.5 V-tolerant inputs (74ALVC only), delivers ±24 mA drive at 3.0 V, and meets JEDEC standards JESD8-7, JESD8-5, and JESD8C/JESD36 for voltage compliance. Propagation delay is as low as 1.9 ns (typ) at 3.3 V with 50 pF load.

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 transceiver applications.

Compared with 74ALVC16245DGG,118, the 74ALVCH16245DGG,118 adds bus-hold but removes 5.5 V tolerance, while SN74LVC16245ADGGR narrows the valid supply range and reduces low-voltage drive capability - making the original optimal for ultra-low-voltage, overvoltage-resilient designs.

Availability

74ALVC16245DGG,118 is available at Aetrix Electronics and suitable for memory expansion interfaces, microcontroller peripheral buses, level-shifting bridges, and backplane data isolation requiring stable component supply across industrial temperature ranges and mixed-voltage environments.

Supply support for 74ALVC16245DGG,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 focused on high-volume, high-reliability essential semiconductors for automotive, industrial, mobile, and computing markets.

The 74ALVC series targets low-voltage, high-speed logic interfacing with emphasis on power efficiency, noise immunity, and mixed-voltage interoperability in space-constrained embedded systems.

FAQ

Can 74ALVC16245DGG,118 operate at 1.2 V while driving 50 Ω transmission lines?

Yes - it delivers ±24 mA output drive at 3.0 V, and its 1.2 V minimum supply is validated for logic functionality and static parameters. However, transmission-line drive capability is specified at 3.0 V and 85 °C; at 1.2 V, output swing and edge rate decrease, limiting usable line length and frequency. For 50 Ω line driving below 2.5 V, verify signal integrity with IBIS simulation or bench measurement.

Does 74ALVC16245DGG,118 support hot insertion into a live backplane?

Yes - its IOFF circuitry disables outputs when VCC = 0 V, preventing back-current injection during hot-plug events. Combined with 5.5 V-tolerant inputs and −40 °C to +85 °C rating, it supports controlled insertion into powered systems. Ensure OE pins are held inactive (HIGH) during insertion to maintain high-impedance state until power stabilizes.

How does the Schmitt-trigger input benefit real-world PCB layouts?

Schmitt-trigger inputs provide hysteresis (typically 0.3–0.5 V), allowing reliable recognition of slow-rising or noisy signals from long traces, unshielded cables, or mechanical switches. This eliminates false triggering and removes the need for external RC filters or debouncing logic - reducing component count and improving layout robustness in electrically harsh environments.

Is bus-hold functionality present on 74ALVC16245DGG,118?

No - bus-hold is exclusive to the 74ALVCH16245 variant. The 74ALVC16245DGG,118 lacks internal bus-hold circuitry, so unused data inputs must be externally terminated with pull-up or pull-down resistors to avoid floating states and potential EMI or logic instability.