74LVC4245APW

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74LVC4245APW

Bus Transceivers XCVR 8BIT LVL SHIFTR

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Standard Pack Qty 63

概述

Description

The 74LVC4245APW is a high-speed, low-voltage bidirectional level shifter designed to facilitate communication between devices operating at different voltage levels, typically between 1.2V and 5.5V. It is part of the 74LVC family of devices, known for their low power consumption and high-speed operation.
This IC features two channels that allow for two-way data transfer, making it ideal for interfacing between microcontrollers and other components that may require different logic levels. The device supports various bus protocols and is often used in applications such as I2C, SPI, and UART.
The 74LVC4245APW is packaged in a TSSOP-20 format, which provides a compact solution for space-constrained designs. Its fast switching speeds and low propagation delay make it suitable for high-performance applications, while its wide supply voltage range ensures compatibility with a variety of systems. Additionally, its robust design includes features like over-voltage protection, contributing to reliable performance in mixed-voltage environments.

Features

The 74LVC4245APW is a dual-direction, level-shifting, 8-bit bus transceiver designed for interfacing between different voltage levels in digital circuits. Key features include:
1. Wide Voltage Range: Operates between 1.2V to 5.5V, making it suitable for various logic levels.
2. Dual-Direction Data Transmission: Supports bidirectional data flow, allowing seamless communication between two systems operating at different voltages.
3. Low Power Consumption: Features low static and dynamic power consumption, enhancing energy efficiency.
4. High Speed: Capable of high-speed operation, with data rates up to 5 Gbps.
5. Built-in Bus Hold: Incorporates bus hold circuitry to eliminate the need for external pull-up or pull-down resistors, maintaining state when inputs are floating.
6. Active Bus Control: Allows for control over the direction of data flow with a single control pin, simplifying design.
7. Robust Design: Offers protection against bus contention, improving reliability in mixed-voltage applications.
These features make the 74LVC4245APW ideal for use in mixed-voltage systems, level conversion applications, and portable devices.

Package

The 74LVC4245APW is packaged in a TSSOP (Thin Shrink Small Outline Package) with a 20-pin configuration. It is designed for surface mounting and has a small footprint suitable for compact electronic applications.

Pinout

The 74LVC4245APW is a dual voltage-level translator with a pin count of 20. It is designed to facilitate communication between devices operating at different voltage levels, such as 5V and 3.3V systems.
Pin Functions:
- A1-A8 (Pins 1-8): 8-bit data input for the lower voltage side (e.g., 3.3V).
- B1-B8 (Pins 19-12): 8-bit data output for the higher voltage side (e.g., 5V).
- DIR (Pin 16): Direction control input; determines the direction of data flow (A to B or B to A).
- VCCA (Pin 2): Voltage supply for side A (lower voltage).
- VCCB (Pin 20): Voltage supply for side B (higher voltage).
- GND (Pin 10): Ground reference.
- OE (Pin 15): Output enable; when low, outputs are enabled; when high, outputs are in high-impedance state.
This device is commonly used in mixed-voltage applications to ensure logic level compatibility.

Manufacturer

The manufacturer of the 74LVC4245APW is Nexperia. Nexperia is a global semiconductor company that specializes in the design and manufacturing of discrete, logic, and MOSFET devices. Established in 2017 as a spin-off from NXP Semiconductors, Nexperia focuses on providing high-quality, reliable components used in various electronic applications, including automotive, industrial, and consumer electronics. Their product portfolio includes integrated circuits (ICs), diodes, and transistors, catering to a wide range of industries and markets. Nexperia emphasizes efficiency, performance, and innovation in its manufacturing processes and product development.

Application

The 74LVC4245APW is a dual supply level translator designed for interfacing between different voltage levels in digital circuits. Its primary application areas include communication between low-voltage and high-voltage devices, interfacing microcontrollers with peripherals, and connecting different logic families in mixed-signal environments. It's commonly used in consumer electronics, automotive systems, and industrial automation for reliable signal translation and data integrity.

Equivalent

The 74LVC4245APW is a bi-directional level shifter and can be replaced by equivalent chips such as the 74LVC4245A, 74LVC4245, and 74LVC4245AFT. Other alternatives include the 74LVC4245APW-7 and similar 74LVC or 74HCT series level shifting devices. Always check datasheets for specific pin configurations and features to ensure compatibility.

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