Nexperia USA Inc. 74ALVT162245DGG:11

Overview

74ALVT162245DGG:11 from Nexperia is a 16-bit bidirectional bus transceiver with integrated 30 Ω series output termination resistors, dual 8-bit direction control (1DIR/2DIR), and dual active-low 3-state enables (1OE/2OE). It operates from 2.3 V to 3.6 V, delivers ±12 mA drive, supports 5 V I/O tolerance, and functions as either one 16-bit or two independent 8-bit transceivers in high-speed TTL- and CMOS-compatible backplane or memory bus interfaces.

For engineers reviewing the 74ALVT162245DGG:11 datasheet, 74ALVT162245DGG:11 pinout, 74ALVT162245DGG:11 application, or 74ALVT162245DGG:11 equivalent, key selection criteria include its on-die 30 Ω termination, bus-hold inputs eliminating external pull-ups, IOFF partial power-down capability, and guaranteed operation from −40 °C to +85 °C across both 2.5 V and 3.3 V supply rails.

Technical Context

The device implements BiCMOS logic for high-speed propagation (as low as 0.5 ns tPLH at 3.3 V) while maintaining robust ±12 mA output drive. Its dual independent DIR/OE pairs enable granular control of two 8-bit data paths-each with separate send/receive direction and 3-state enable-allowing concurrent bidirectional transfers on segmented buses.

Bus-hold circuitry actively maintains last-valid logic state on unused I/O pins without external components, and the IOFF feature ensures negligible leakage (<±100 μA) when VCC = 0 V, supporting live insertion/extraction and hot-swap system architectures.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm lead pitch, designed for high-density PCB layouts with thermal and mechanical reliability in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVTH162245DGGR and 74LVT162245DGG, the 74ALVT162245DGG:11 uniquely combines on-die 30 Ω termination, bus-hold, and IOFF in a single TSSOP48 package-reducing design risk, component count, and validation effort for high-reliability industrial and telecom backplane interfaces.

Availability

74ALVT162245DGG:11 is available at Aetrix Electronics and suitable for memory bus interfaces, telecom backplanes, PCI/ISA extensions, and automated test equipment requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature operation.

Supply support for 74ALVT162245DGG:11 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, reliable logic, analog, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in industrial, automotive, and computing applications.

The 74ALVT family targets high-speed, low-voltage bus interface applications-designed specifically for noise-immune, hot-pluggable, and mixed-voltage system interconnects where signal integrity and power management are critical.

FAQ

Does the 74ALVT162245DGG:11 support hot-swap operation?

Yes. The device incorporates IOFF circuitry that limits power-off leakage to ±100 μA when VCC = 0 V, and meets JESD78 Class II Level B latch-up immunity (>500 mA). Combined with bus-hold inputs and 5 V-tolerant I/O, it enables safe live insertion and extraction in backplane and modular systems without disrupting bus operation.

What is the purpose of the 30 Ω series termination resistors?

Each output integrates a 30 Ω series resistor to match typical PCB trace impedances in point-to-point or short-daisy-chain topologies. This reduces signal reflections, overshoot, and ringing-eliminating the need for eight external 30 Ω resistors per device and improving signal integrity without additional layout area or BOM items.

Can the 74ALVT162245DGG:11 interface directly with 5 V logic?

Yes. Inputs tolerate up to 5.5 V regardless of VCC (2.3–3.6 V), and outputs drive 5 V buses with ±12 mA current. No level-shifting circuitry is required, enabling seamless integration between 2.5 V/3.3 V controllers and legacy 5 V peripherals such as SRAM, EPROM, or FPGA configuration interfaces.

How does bus-hold functionality reduce design complexity?

Bus-hold circuitry actively maintains the last valid logic state on unconnected or unterminated I/O pins using ±75 μA to ±140 μA feedback current. This eliminates the need for external pull-up or pull-down resistors on unused data lines-reducing component count, PCB space, and potential failure points in high-pin-count bus interfaces.