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74AVC4T245BQ,115

74AVC4T245BQ,115

Nexperia USA Inc.
Translation Transceiver 2 Element 2 Bit per Element 3-State Output 16-DHVQFN (2.5x3.5)
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Overview

The 74AVC4T245BQ is a 4-bit dual-supply translating transceiver designed for asynchronous communication between data buses operating at different voltage levels. It features two 2-bit elements with independent direction control, allowing for flexible bidirectional voltage translation across a wide range from 0.8V to 3.6V.

Why Choose This Part

The device supports a very low minimum supply voltage of 0.8V, making it ideal for the latest generation of low-power FPGAs and SoCs. It includes Ioff circuitry for partial power-down applications, ensuring no damaging backflow current when the device is powered off, and features high ESD protection exceeding 8000V HBM.

Applications

Mixed-Voltage Logic Interfacing
Bridging legacy 3.3V logic with ultra-low voltage 0.8V or 1.2V core logic in modern processors.
Mobile and Battery-Powered Systems
Utilizing the partial power-down (Ioff) and suspend mode features to minimize current draw in portable electronics.
Level Shifting for High-Speed Interfaces
Translating control signals for SD cards, GPIO, or memory interfaces that require 12mA drive strength and 3-state outputs.

Key Specifications

Logic Type Translation Transceiver
Output Type 3-State
Mounting Type Surface Mount
Package / Case 16-VFQFN Exposed Pad
Voltage - Supply 0.8V ~ 3.6V
Number of Elements 2
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 16-DHVQFN (2.5x3.5)
Current - Output High, Low 12mA, 12mA
Number of Bits per Element 2

Getting Started

When designing with this DHVQFN16 package, ensure the center thermal pad is soldered to a PCB ground plane for optimal thermal and electrical performance. Connect VCC(A) and VCC(B) to their respective logic supplies and use decoupling capacitors as close to the pins as possible to maintain signal integrity during 3-state switching.

Also Consider

TXB0104RGYR TITexas Instruments - An alternative 4-bit translator that features auto-direction sensing, eliminating the need for DIR control pins.