74LVC245AD

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74LVC245AD

Bus Transceivers 3.3V OCTAL TRANSCVR 3-STATE

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仕様

Standard Pack Qty 38

概要

Description

The 74LVC245AD is a high-speed, low-voltage, octal buffer/driver designed for driving and receiving data on a bus. It operates with a supply voltage range of 1.65V to 5.5V, making it suitable for various applications, including interfacing between different logic levels. The device features two 4-bit buffers that can be used individually or in parallel, enhancing flexibility in data management.
Key features include a tri-state output that allows for bus contention, active high enables, and low power consumption, making it ideal for battery-operated devices. The 74LVC245AD also offers a fast propagation delay, ensuring quick data transfer rates.
Applications include data routing, bus drivers in digital circuits, and interfacing microcontrollers with peripheral devices. It is commonly used in communication systems, industrial automation, and consumer electronics. The device comes in various package options, facilitating easy integration into circuit designs.

Features

The 74LVC245AD is an octal bus transceiver designed for high-speed data transmission. Key features include:
1. Dual Supply Voltage: Operates with a voltage range of 1.2V to 5.5V, accommodating various logic levels.
2. Data Direction Control: Includes direction control pins (DIR) for easy switching between transmitting and receiving modes.
3. High-Speed Operation: Capable of operating at speeds up to 200 MHz, ensuring fast data handling.
4. Low Power Consumption: Features low standby current, making it energy-efficient.
5. Bus Hold: Provides bus-hold circuitry to prevent floating inputs, enhancing reliability.
6. Wide Input/Output Voltage Tolerance: Supports a wide range of input/output voltages, allowing interoperability with different logic families.
7. 3-State Outputs: Outputs can be set to high, low, or high-impedance state, allowing for easy bus sharing.
8. ESD Protection: Offers robust electrostatic discharge (ESD) protection, improving durability in various environments.
This device is ideal for applications requiring bidirectional data transfer between devices, such as microcontrollers and peripheral components.

Package

The 74LVC245AD is typically available in a TSSOP (Thin Shrink Small Outline Package) format, specifically in a 20-pin TSSOP package. This type of packaging is designed for compact applications, offering a small footprint and efficient heat dissipation.

Pinout

The 74LVC245AD is an octal buffer/driver with 3-state outputs, designed for high-speed data transmission. It features a total of 20 pins.
Pin Configuration:
- Data Inputs (A1-A8): Pins 1-8 for inputting data.
- Data Outputs (Y1-Y8): Pins 19-12 for outputting data.
- Direction Control (DIR): Pin 19 for setting the direction of data flow (A to Y or Y to A).
- Output Enable (OE): Pin 20 to enable or disable the outputs (active low).
- GND: Pin 10 for ground connection.
- VCC: Pin 20 for power supply.
Functionality:
In operation, when OE is low, data from inputs A1-A8 is transmitted to outputs Y1-Y8. When OE is high, the outputs are in a high-impedance state. The DIR pin controls the direction of data flow, allowing for versatility in data handling. The device is compatible with TTL and CMOS logic levels, making it suitable for various applications in digital circuits.

Manufacturer

The 74LVC245AD is manufactured by Texas Instruments (TI), a leading American technology company. Founded in 1930, TI designs and produces semiconductors and various integrated circuits, which are widely used in electronic devices. The company is known for its innovation in analog and embedded processing technologies, serving a diverse range of industries, including automotive, industrial, communications, and consumer electronics. Texas Instruments is a significant player in the semiconductor market and is recognized for its commitment to research and development, contributing to advancements in electronic components and systems.

Application

The 74LVC245AD is a high-speed, low-voltage octal bus transceiver designed for data transmission between devices. Its application areas include interface bridging between different logic families, such as TTL to CMOS, bus communication in microcontroller and FPGA designs, and data buffering in digital systems. It's commonly used in communication systems, automotive electronics, and industrial control applications, where reliable data transfer and signal integrity are essential.

Equivalent

The 74LVC245AD is a high-speed, low-voltage, octal buffer/driver with 3-state outputs. Equivalent products include:
- 74LVC245A
- 74AHC245
- 74HC245
These alternatives may have slight variations in voltage levels, speed, or power consumption, so always check the specific datasheets for compatibility with your application.

出荷

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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