Nexperia USA Inc. 74LVC16245AEV/G:55

Overview

74LVC16245AEV/G:55 from Nexperia is a 16-bit 3-state bus transceiver with dual direction control (1DIR/2DIR) and dual output enables (1OE/2OE), operating from 1.2 V to 3.6 V supply, tolerant to 5.5 V inputs, and rated for -40 °C to +125 °C. It supports bidirectional data flow between two 8-bit buses or one 16-bit bus in mixed-voltage systems (e.g., 3.3 V ↔ 5 V logic translation).

For engineers reviewing the 74LVC16245AEV/G:55 datasheet, 74LVC16245AEV/G:55 pinout, 74LVC16245AEV/G:55 application, or 74LVC16245AEV/G:55 equivalent, this device delivers low-noise, high-speed level translation with IOFF partial power-down protection, Schmitt-trigger inputs for slow-edge tolerance, and bus-hold functionality on data I/Os (in LVCH variant) - critical for stable operation in industrial bus interfaces and FPGA-to-ASIC interconnects.

Technical Context

This transceiver implements dual independent 8-bit bidirectional channels, each with dedicated DIR and OE controls, enabling flexible byte-level bus arbitration. Its CMOS architecture ensures low static current (≤80 μA at 3.6 V) and dynamic power dissipation governed by CPD = 18.5 pF (at 3.3 V).

The IOFF circuit actively disables outputs during power-down to block backflow current, while Schmitt-trigger inputs (with hysteresis ≥0.3 V at 3.3 V) suppress noise-induced switching. Bus-hold on all data I/Os (74LVCH16245A variant) eliminates external pull-ups, reducing BOM count and board space in unconnected or floating-bus scenarios.

Key Specifications

Pinout & Package

74LVC16245AEV/G:55 is packaged in SOT702-1 (HVQFN48), a 48-pin plastic HVQFN with 0.4 mm pitch, 7.0 mm × 7.0 mm body, and exposed thermal pad. This package provides low-inductance grounding and enhanced thermal performance over TSSOP/TVSOP variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVCH16245ADGV and SN74LVC16245ADGGR, the 74LVC16245AEV/G:55 offers superior thermal management via HVQFN's EPAD and smaller footprint, making it optimal for high-density, thermally constrained industrial and medical applications where reliability under continuous 125 °C operation is non-negotiable.

Availability

74LVC16245AEV/G:55 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA-to-ASIC bridges, automotive body control modules, and medical imaging data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC16245AEV/G:55 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, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74LVC/LVCH logic family targets high-speed, low-power, mixed-voltage system interfacing - specifically engineered for robust level translation, noise immunity, and seamless integration in space- and thermal-constrained embedded platforms.

FAQ

What is the maximum clock rate supported by 74LVC16245AEV/G:55?

The device does not operate on a clock; it is asynchronous. Its 4.5 ns maximum propagation delay at 3.3 V enables reliable use in systems with bus toggle frequencies up to ~220 MHz, assuming setup/hold timing is met by the driving and receiving logic. Real-world maximum rate depends on trace length, loading, and signal integrity margins.

Can 74LVC16245AEV/G:55 drive a 50 pF load at 3.3 V?

Yes. At VCC = 3.3 V and IO = ±24 mA, VOL ≤ 0.55 V and VOH ≥ 2.2 V are guaranteed into 50 pF loads per the datasheet's dynamic test conditions (Table 9). The 18.5 pF CPD value confirms suitability for typical 50 pF bus capacitances found in dense PCB layouts.

Does 74LVC16245AEV/G:55 include bus-hold functionality?

No - bus-hold is exclusive to the 74LVCH16245A variant. The 74LVC16245A (including EV/G:55) lacks internal bus-hold circuitry on data I/Os. External pull-up/pull-down resistors are required to prevent floating states on unused pins.

Is the exposed pad (EPAD) of 74LVC16245AEV/G:55 electrically connected?

Yes. The EPAD is internally connected to GND and must be soldered to a PCB ground plane. It serves both thermal conduction (reducing θJA by ~15 °C/W) and EMI suppression. Leaving it unconnected degrades thermal performance and increases susceptibility to noise coupling.