NXP Semiconductors 74AVCH16T245DGV,11

Overview

74AVCH16T245DGV,11 from Nexperia is a 16-bit dual-supply bidirectional voltage-translating transceiver with 3-state outputs, independent VCC(A) and VCC(B) rails (0.8 V to 3.6 V), bus-hold circuitry, and IOFF partial power-down support. It operates across −40 °C to +125 °C and enables level translation between 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V domains in high-density logic interconnects.

For engineers reviewing the 74AVCH16T245DGV,11 datasheet, 74AVCH16T245DGV,11 pinout, 74AVCH16T245DGV,11 application, or 74AVCH16T245DGV,11 equivalent, this page delivers verified electrical specifications, TSSOP48 package details, direction-controlled data flow, suspend-mode behavior, and real-world substitution guidance for mixed-voltage system design.

Technical Context

The 74AVCH16T245DGV,11 implements two independent 8-bit transceiver blocks (1A/1B and 2A/2B), each with dedicated nDIR (direction control) and nOE (output enable) inputs referenced to VCC(A). Data paths support bidirectional translation in either direction-nAn→nBn (when nDIR = HIGH) or nBn→nAn (when nDIR = LOW)-with output disable asserted by HIGH on nOE.

Its IOFF circuitry actively disables outputs when either VCC(A) or VCC(B) is at GND, preventing backflow current during partial power-down. Bus-hold circuitry maintains valid logic states on unused A/B port inputs without external resistors, and all I/O tolerate up to 3.6 V regardless of supply voltage.

Key Specifications

Pinout & Package

TSSOP48 package (SOT480-1), plastic thin shrink small outline, 48 leads, 4.4 mm body width, 0.4 mm lead pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional voltage translation applications.

Compared with SN74AVCH16T245DGGR, the 74AVCH16T245DGV,11 offers identical functionality and drop-in compatibility; versus 74LVC16T245PW,118, it adds 0.8 V operation, IOFF, and bus-hold-making it essential for ultra-low-voltage SoCs and robust industrial designs.

Availability

74AVCH16T245DGV,11 is available at Aetrix Electronics and suitable for automotive domain controllers, industrial PLC backplanes, FPGA I/O expansion, and processor-peripheral interconnects requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AVCH16T245DGV,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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, consumer, and wearable markets.

The 74AVCH16T245DGV,11 belongs to Nexperia's advanced voltage-translating logic family, engineered specifically for reliable, low-latency, mixed-voltage communication in next-generation embedded systems with strict power sequencing and ESD requirements.

FAQ

What voltage combinations does the 74AVCH16T245DGV,11 support between its A and B ports?

The 74AVCH16T245DGV,11 supports any combination of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V on VCC(A) and VCC(B) simultaneously. Its architecture allows translation from lower to higher voltages (e.g., 1.2 V → 3.3 V) and vice versa (e.g., 3.3 V → 1.2 V), with maximum data rates dependent on the specific pair-up to 380 Mbit/s for ≥1.8 V ↔ 3.3 V links.

Does the 74AVCH16T245DGV,11 require external pull-up or pull-down resistors on unused I/O lines?

No. The 74AVCH16T245DGV,11 integrates active bus-hold circuitry on all A and B port inputs, which maintains the last-valid logic state without external components. This feature eliminates the need for pull resistors, reduces BOM cost, saves PCB area, and avoids signal integrity issues caused by resistor parasitics-especially critical in high-density layouts.

How does the IOFF function protect the 74AVCH16T245DGV,11 during partial power-down?

When either VCC(A) or VCC(B) drops to GND, the 74AVCH16T245DGV,11 automatically disables all associated outputs and places them in high-impedance OFF-state. This IOFF behavior prevents damaging backflow current from a powered rail into a powered-down section-enabling safe hot-swap, suspend/resume, and asymmetric power sequencing in complex multi-rail systems.

What is the maximum propagation delay for the 74AVCH16T245DGV,11 at −40 °C to +125 °C?

At −40 °C to +125 °C, the maximum propagation delay for the 74AVCH16T245DGV,11 is 10.2 ns (nAn→nBn path, VCC(A) = 1.1–1.3 V, VCC(B) = 1.2 V), per Table 13. Directional asymmetry exists: nBn→nAn delays are typically longer due to internal path differences, reaching up to 9.8 ns under identical conditions.

Is the 74AVCH16T245DGV,11 pin-compatible with other packages in the same family?

No-the 74AVCH16T245DGV,11 uses the TSSOP48 (SOT480-1) package with 48 leads and 0.4 mm pitch. Other variants like 74AVCH16T245EV (VFBGA56) and 74AVCH16T245BX (HXQFN60) have different footprints, pin counts, and thermal characteristics. Only the DGG variant (SOT362-1) shares identical pinout and package dimensions-making it the sole direct mechanical replacement.