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74AVC8T245BQ

74AVC8T245BQ

MPN: 74AVC8T245BQ,118
Nexperia USA Inc.
Translation Transceiver 1 Element 8 Bit per Element 3-State Output 24-DHVQFN (5.5x3.5)
Active17,320 in stock
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Overview

The 74AVC8T245BQ is an 8-bit dual-supply translating transceiver designed for asynchronous communication between data buses operating at different voltage levels. It features a wide supply range from 0.8V to 3.6V for both VCC(A) and VCC(B), allowing for flexible bidirectional level shifting between low-voltage logic families.

Why Choose This Part

The device offers excellent ESD protection with HBM exceeding 8000V and CDM exceeding 1000V. Its IOFF circuitry ensures partial power-down mode is supported, which prevents damaging current from flowing through the device when it is powered down. The DHVQFN24 package provides a compact 3.5mm x 5.5mm footprint with an exposed pad for improved thermal and electrical performance.

Applications

Mixed-Voltage Logic Interfacing
Connecting legacy 3.3V peripherals to modern 0.8V or 1.2V ultra-low-voltage microprocessors.
Asynchronous Data Bus Translation
Providing bidirectional data buffering for 8-bit parallel buses across different power domains.
Power Domain Isolation
Using the IOFF and suspend mode features to prevent backflow current when one power rail is disabled.

Key Specifications

Logic Type Translation Transceiver
Output Type 3-State
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Voltage - Supply 0.8V ~ 3.6V
Number of Elements 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 24-DHVQFN (5.5x3.5)
Current - Output High, Low 12mA, 12mA
Number of Bits per Element 8

Getting Started

To implement this transceiver, connect the lower voltage rail to VCC(A) or VCC(B) as required, ensuring decoupling capacitors are placed near the supply pins. Direction is controlled by the DIR pin, while the Output Enable (OE) pin allows for 3-state isolation. For prototyping, use a DHVQFN-24 to DIP adapter or an equivalent breakout board since this is a leadless surface-mount component.

Also Consider

TXB0108RGYR TITexas Instruments - An 8-bit auto-direction sensing translator suitable for applications where a dedicated direction control signal is not available.