74LVC245AD

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74LVC245AD

+БОМ

Bus Transceivers 3.3V OCTAL TRANSCVR 3-STATE

  • ПроизводительNexperia

  • Мфр. Часть #74LVC245AD

  • В наличии23237

365 Дни гарантии качества

7*24 часы обслуживания каранти

90-гарантия послепродажного дня

Гарантия подлинного продукта

Спецификации

Атрибут Ценность
StandardPackQty 38

Обзор

Description

The 74LVC245AD is an octal bus transceiver designed for asynchronous two-way communication between data buses. It is part of the 74LVC series, known for low-voltage and high-speed CMOS technology. Operating at a supply voltage range from 1.2V to 3.6V, it is ideal for battery-powered and low-power applications. The device features an output enable (OE) pin for easy isolation of the buses, allowing bidirectional data flow controlled via a direction (DIR) pin.
Its high-speed operation and low power consumption make it suitable for a variety of applications, including computing and communication devices. With an open-drain configuration, it offers flexible interfacing options. Furthermore, the 74LVC245AD supports live insertion and has 5V-tolerant inputs, ensuring seamless integration with existing systems. Its small package size makes it suitable for space-constrained designs.
Overall, the 74LVC245AD is a versatile component for efficient data management in digital systems, offering robust performance and reliability in demanding environments.

Equivalent

Equivalent products to the 74LVC245AD, an octal bus transceiver with 3-state outputs, include:
1. SN74LVC245A by Texas Instruments
2. MC74LCX245 by ON Semiconductor
3. 74HC245 by Nexperia
4. 74LV245 by Fairchild Semiconductor (now part of ON Semiconductor)
5. MC74VHC245 by ON Semiconductor
These chips have similar functions and are used in digital circuits for data transmission between buses. Always confirm pin configurations and electrical characteristics before substituting.

Features

The 74LVC245AD is an octal transceiver with non-inverting 3-state bus-compatible outputs. It is designed for asynchronous communication between data buses and can be used in bidirectional data transfer applications. Key features include:
1. Wide Operating Voltage Range: Typically operates from 1.2 V to 3.6 V, making it suitable for low-voltage applications.

2. 3-State Outputs: Enables multiple devices to connect to the same data bus without interference, as outputs can be disabled.
3. High-Speed Operation: Designed for high-speed data transfer with low power dissipation.
4. Direction Control (DIR): Allows data transmission in both directions with a direction control pin.
5. Output Enable (OE): A control pin that disables or enables the outputs, providing flexibility in bus management.
6. Low Noise: Features to minimize ground bounce and signal noise for reliable operation.
7. Latch-Up Performance: Meets the JEDEC standard for 200 mA with Class 2 ESD protection.
8. Compact Package: Available in several package options suitable for space-constrained designs.
These features make the 74LVC245AD a versatile choice in digital systems requiring efficient bus driving and buffer capabilities.

Pinout

The 74LVC245AD is a high-speed CMOS device that functions as an octal (8-bit) transceiver with 3-state outputs. It is widely used for bus interface applications. The device features a bidirectional data flow with a direction control (DIR) pin and an output enable (OE) pin, making it suitable for both sending and receiving data across a bus.
The pin count for the 74LVC245AD is 20. Here is a brief overview of its pin functions:
1. A1-A8 (Pins 2-7, 10-11): These are the data inputs/outputs for bus A.
2. DIR (Pin 1): The direction control pin determines the data flow direction; when high, data flows from A to B, and when low, data flows from B to A.
3. OE (Pin 19): The output enable pin, when low, enables the device's outputs. When high, it places the outputs in a high-impedance state, effectively disconnecting them from the bus.
4. B1-B8 (Pins 12-17, 18): These are the data inputs/outputs for bus B.
5. VCC (Pin 20): The power supply pin.
6. GND (Pin 10): The ground pin.
This configuration allows the 74LVC245AD to effectively manage data transfer across shared buses in digital systems.

Manufacturer

The 74LVC245AD is manufactured by Nexperia, a global semiconductor company. Nexperia specializes in producing discrete, logic, and MOSFET devices. Originally part of NXP Semiconductors, Nexperia became an independent company in 2017 after being acquired by a consortium led by Beijing-based Wise Road Capital. Nexperia focuses on delivering high-volume, high-efficiency products, emphasizing quality and performance in the semiconductor industry. The company serves various sectors, including automotive, industrial, computing, consumer electronics, and communications, thereby playing a critical role in the global electronics supply chain.

Application

The 74LVC245AD is an octal bus transceiver with 3-state outputs, commonly used in applications requiring bidirectional data communication between data buses. Key application areas include:
1. Microcontroller and Microprocessor Systems: Facilitates communication between different parts of a system or between different systems.
2. Memory Interfacing: Assists in interfacing between memory units and processing units.
3. Peripheral Devices: Enables data transfer between central processing units and peripheral devices.
4. Data Acquisition Systems: Used in systems that involve data collection from multiple sources.
5. Telecommunications Equipment: Integrates into systems that require robust and reliable data transfer.
These applications benefit from its high-speed data transfer capabilities and low power consumption.

Package

The 74LVC245AD is available in a SOIC-20 package type, which is a Small Outline Integrated Circuit with 20 pins.

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