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74ALVC245BQ,115

74ALVC245BQ,115

Nexperia USA Inc.
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 20-DHVQFN (4.5x2.5)
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Overview

The 74ALVC245BQ is a high-performance, low-voltage octal bus transceiver designed for asynchronous two-way communication between data buses. It features 3-state outputs and supports a wide supply voltage range from 1.65V to 3.6V, making it ideal for interfacing between different low-voltage logic levels.

Why Choose This Part

This transceiver offers high-speed operation with low power dissipation and provides Schmitt trigger action on all inputs for improved noise immunity. The DHVQFN20 package provides a significant footprint reduction compared to traditional SOIC packages while maintaining excellent thermal performance via the exposed pad.

Applications

Bus Interfacing
Connecting 8-bit data buses in computing and industrial systems where high-speed asynchronous communication is required.
Voltage Level Translation
Interfacing between microcontrollers and peripherals operating at different supply voltages from 1.8V to 3.3V.
Signal Buffering
Providing high-drive capability (24mA) for driving heavily loaded backplanes or long PCB traces.
Power-Down Isolation
Using the IOFF circuitry to prevent backflow current when the device is powered down, protecting sensitive CMOS inputs.

Key Specifications

Logic Type Transceiver, Non-Inverting
Output Type 3-State
Mounting Type Surface Mount
Package / Case 20-VFQFN Exposed Pad
Voltage - Supply 1.65V ~ 3.6V
Number of Elements 1
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 20-DHVQFN (4.5x2.5)
Current - Output High, Low 24mA, 24mA
Number of Bits per Element 8

Getting Started

Ensure the DIR pin is tied to the correct logic level to set data direction and use the Output Enable (OE) pin to manage high-impedance states. Decouple the VCC pin with a 0.1uF ceramic capacitor placed close to the device to minimize switching noise in high-speed applications.

Also Consider

74LVC245ABQ Nexperia USA Inc. - Consider this if 5V tolerance is required on the I/O pins, though it may have different propagation delay characteristics.