74LVCH245ADB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, low-power, bidirectional voltage level translation
• Package: SSOP (Shrink Small Outline Package)
• Essence: Transferring digital signals between devices operating at different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400 MHz
• Number of Channels: 8
• Input/Output Type: Tri-State Non-Inverting
• Logic Family: LVCMOS

Detailed Pin Configuration

The 74LVCH245ADB,118 has a total of 20 pins. The pin configuration is as follows:

+-------------------+ OE -|1 20|- VCC A1 -|2 19|- B1 A2 -|3 18|- B2 A3 -|4 17|- B3 A4 -|5 74LVCH245ADB,118 16|- B4 A5 -|6 15|- B5 A6 -|7 14|- B6 A7 -|8 13|- B7 GND -|9 12|- B8 DIR -|10 11|- OE# +-------------------+

Functional Features

• Bidirectional voltage level shifting: Allows for the translation of digital signals between devices operating at different voltage levels.
• Tri-State Non-Inverting: The inputs and outputs are non-inverting, and the device supports a high-impedance state when the output enable (OE) pin is set to high.
• High-speed operation: Capable of operating at frequencies up to 400 MHz.
• Low-power consumption: Designed to minimize power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Bidirectional functionality simplifies signal translation between different voltage domains. - Tri-State Non-Inverting feature enables easy integration into bus systems. - High-speed operation facilitates efficient data transfer.

Disadvantages: - Limited number of channels (8) may not be sufficient for complex systems requiring more connections. - SSOP package may require careful handling during assembly due to its small size.

Working Principles

The 74LVCH245ADB,118 operates by receiving digital signals from one voltage domain and translating them to another voltage domain. It utilizes a combination of level shifting circuitry and tri-state buffers to achieve bidirectional communication. The direction of data flow is controlled by the DIR pin, while the OE pin enables or disables the outputs. When the OE pin is high, the outputs enter a high-impedance state, allowing other devices to drive the bus.

Detailed Application Field Plans

The 74LVCH245ADB,118 is commonly used in various applications that require voltage level translation, such as: - Interfacing between microcontrollers and peripheral devices operating at different voltage levels. - Communication between different logic families, such as LVCMOS and LVTTL. - Connecting devices with different power supply voltages, enabling seamless data transfer.

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the 74LVCH245ADB,118 include: - SN74LVC245A: Manufactured by Texas Instruments, this IC offers 8-bit bidirectional voltage level translation with a similar supply voltage range and package. - MC74LVX245: Produced by ON Semiconductor, this device also provides 8-bit bidirectional level shifting capabilities and operates at comparable frequencies.

(Note: The above alternatives are provided as examples and not an exhaustive list. It is recommended to refer to the manufacturer's datasheets for detailed specifications and suitability for specific applications.)

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