Nexperia USA Inc. 74LVCH162245ADGVJ

Overview

74LVCH162245ADGVJ from Nexperia is a 16-bit bidirectional transceiver with integrated 30 Ω series termination resistors, dual direction control (1DIR/2DIR), dual 3-state enable (1OE/2OE), bus hold on all data inputs, and 5 V tolerant I/O operating from 1.2 V to 3.6 V supply. It functions as two independent 8-bit transceivers or one unified 16-bit bus interface in mixed-voltage memory or peripheral interconnects.

For engineers reviewing the 74LVCH162245ADGVJ datasheet, 74LVCH162245ADGVJ pinout, 74LVCH162245ADGVJ application, or 74LVCH162245ADGVJ equivalent, this device supports voltage translation between 3.3 V and 5 V domains, enables partial power-down via IOFF, and eliminates external pull-ups through bus hold-critical for high-density PCBs in industrial controllers and FPGA I/O expansion.

Technical Context

This transceiver implements dual 8-bit flow-through architecture with separate direction and output-enable controls per byte lane, enabling asymmetric data flow management across two independent buses. Its Schmitt-trigger inputs tolerate slow-rising signals, and IOFF circuitry actively disables outputs during power-down to prevent backflow current.

The 74LVCH162245ADGVJ integrates 30 Ω series termination resistors on all I/O pins to suppress signal reflections in high-speed parallel buses, while bus hold functionality maintains valid logic states on unused data inputs without external components-reducing BOM count and layout complexity in space-constrained embedded systems.

Key Specifications

Pinout & Package

74LVCH162245ADGVJ is packaged in TVSOP48 (SOT480-1): 48-pin plastic thin shrink small outline package, 4.4 mm body width, 0.4 mm lead pitch, 1.1 mm max height. Pin numbering follows standard counter-clockwise layout with pin 1 index marker.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC162245ADGV, the 74LVCH162245ADGVJ adds bus hold to eliminate external biasing, while versus SN74LVC16245ADGGR it integrates termination to reduce layout complexity and improve signal fidelity-making it optimal for compact, high-reliability parallel bus interfaces.

Availability

74LVCH162245ADGVJ is available at Aetrix Electronics and suitable for industrial automation backplanes, FPGA I/O expansion modules, automotive body control units, and automated test equipment requiring stable component supply across extended temperature ranges.

Supply support for 74LVCH162245ADGVJ 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 optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74LVCH162245ADGVJ belongs to Nexperia's LVC/LVCH advanced logic family, engineered specifically for low-voltage, high-speed bidirectional bus interfacing in mixed-signal systems where voltage translation, signal integrity, and power-down safety are critical.

FAQ

What is the function of the bus hold feature on 74LVCH162245ADGVJ?

The bus hold circuit actively maintains the last-valid logic state on all data inputs (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7) when those pins float, using ±10 μA to ±500 μA sustaining current depending on V_CC. This eliminates the need for external pull-up or pull-down resistors, reducing BOM cost and PCB area-especially valuable in modular systems with unpopulated slots or hot-plug interfaces.

Can 74LVCH162245ADGVJ operate with a 1.2 V supply and still interface with 5 V signals?

Yes. The device supports V_CC as low as 1.2 V while maintaining full 5.5 V tolerance on all I/O pins. Input clamping diodes and robust oxide design allow safe connection to 5 V sources without damage or logic corruption, enabling seamless voltage translation between ultra-low-power cores and legacy 5 V peripherals without external level shifters.

How does the IOFF circuit protect the device during partial power-down?

When V_CC = 0 V, the IOFF circuit disables all output drivers and isolates I/O pins, limiting leakage current to ±10 μA maximum. This prevents backflow current from powered bus segments into the unpowered IC-a critical safeguard in multi-rail systems where subsystems power down independently, such as in automotive sleep modes or industrial PLC standby states.

What is the impact of the integrated 30 Ω series termination resistors on signal integrity?

The on-die 30 Ω resistors are placed in series with each I/O pin to match typical PCB trace impedances (50–75 Ω), suppressing signal reflections and overshoot/undershoot on parallel buses. This reduces EMI, improves eye diagram margins, and eliminates 32 discrete SMT resistors-cutting assembly cost and improving yield in high-density layouts where trace length matching is challenging.