74ALVC245PW

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74ALVC245PW

+Nomenclature

Bus Transceivers

  • FabricantLe nexperia

  • Pièce fabricant #74ALVC245PW

  • En stock17565

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Présentation

Description

The 74ALVC245PW is an integrated circuit from Nexperia, primarily used for voltage translation and data buffering in digital systems. It is an octal bus transceiver with 3-state outputs, meaning it has eight bidirectional buffers and can interface two data buses. The device operates over a wide voltage range from 1.65V to 3.6V, making it versatile for various applications. The '245' designation indicates that it is a transceiver that can transmit data in both directions, controlled by a direction control pin and an output enable pin.
The 74ALVC245PW is designed for high-speed performance and low power consumption, typical of ALVC family devices. It features low propagation delay and can drive up to 24mA at 3.3V. The part is packaged in a TSSOP (Thin Shrink Small Outline Package), which is suitable for space-constrained applications. This IC is commonly used in computing, telecommunications, and consumer electronics where reliable, fast data transfer and level shifting between components operating at different voltage levels are necessary.

Equivalent

The 74ALVC245PW is a transceiver with 3-state outputs. Equivalent products include:
1. SN74ALVC245PW from Texas Instruments
2. 74AVC245PW from Nexperia
3. MC74LCX245 from ON Semiconductor
4. TC7SET245FT from Toshiba
Ensure compatibility by checking the datasheets for pin configurations, voltage levels, and other specifications when considering alternatives.

Features

The 74ALVC245PW is an octal bus transceiver with 3-state outputs, designed for asynchronous two-way communication between data buses. Key features include:
1. Low Voltage Operation: Supports supply voltage ranges from 1.65V to 3.6V, making it suitable for battery-operated devices.
2. High-Speed Performance: Offers fast propagation delay, enhancing data transfer rates.
3. 3-State Outputs: Allows the device outputs to be in a high-impedance state, enabling multiple devices to share the same bus without interference.
4. Low Power Consumption: Designed for reduced power usage, suitable for energy-efficient applications.
5. Direct Interface: Compatible with TTL input levels, allowing easy interfacing with other TTL devices.
6. Latch-Up Performance: Capable of handling up to 500 mA per JESD 17 standard, improving robustness.
7. Compact Package: Available in TSSOP (Thin Shrink Small Outline Package), saving board space.
8. ESD Protection: Enhanced electrostatic discharge protection for greater reliability.
These features make the 74ALVC245PW ideal for use in high-speed, low-power systems where bus isolation and bidirectional data flow are necessary.

Pinout

The 74ALVC245PW is a high-speed CMOS device from the 74ALVC series, used as an octal (8-bit) bus transceiver with 3-state outputs. It features 20 pins in a TSSOP (Thin Shrink Small Outline Package). The primary function of this IC is to provide bidirectional data communication between two buses, with the ability to control the direction of data flow and isolate the buses via the output enable function.
Key pin functions include:
- Pins 2-9 (A1-A8): Data inputs/outputs for bus A.
- Pins 11-18 (B1-B8): Data inputs/outputs for bus B.
- Pin 1 (DIR): Direction control input. Determines the data transfer direction: A-to-B when high, B-to-A when low.
- Pin 19 (/OE): Output Enable input. When low, enables the data transfer. When high, forces all outputs to the high-impedance state, effectively isolating the buses.
- Pin 10 (GND): Ground.
- Pin 20 (VCC): Positive supply voltage.
This configuration allows for flexible and controlled data exchange across different system components, making it useful in applications requiring bus interfacing.

Manufacturer

The 74ALVC245PW is manufactured by Nexperia. Nexperia is a global semiconductor company known for producing discrete, logic, and MOSFET components. It was founded in 2017 after being spun off from NXP Semiconductors, but its roots can be traced back to the semiconductor operations of Philips. Nexperia is headquartered in Nijmegen, Netherlands, and focuses on efficiency, producing high-volume, high-quality semiconductor products for the automotive, industrial, computing, consumer electronics, and communications markets.

Application

The 74ALVC245PW is a high-speed CMOS transceiver that facilitates bidirectional data flow between buses. It is commonly used in applications requiring data buffering and level shifting in digital systems. Key application areas include:
1. Microprocessor and Microcontroller Interfaces: Used for interfacing between components operating at different voltage levels.
2. Memory and Peripheral Interfacing: Helps in connecting and interfacing with memory devices and peripheral components.
3. Communication Systems: Facilitates data transfer in communication protocols.
4. Portable and Battery-Powered Devices: Ideal for low-power applications requiring efficient data handling.
These applications benefit from its low power consumption, high-speed operation, and ability to transmit and receive data effectively.

Package

The 74ALVC245PW is a non-inverting bus transceiver with 3-state outputs, commonly used for asynchronous communication between data buses. It comes in a TSSOP (Thin Shrink Small Outline Package) with 20 pins, which is compact and suitable for surface mounting.

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