74LVC2T45GS,115

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Translator
• Characteristics: Bi-directional voltage level shifting, low power consumption, high-speed operation
• Package: VSSOP8 (Very Small Outline Package)
• Essence: Dual-bit, dual-supply voltage level translator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-level Input Voltage (VIH): 0.7 x VCC
• Low-level Input Voltage (VIL): 0.3 x VCC
• High-level Output Voltage (VOH): 0.9 x VCC
• Low-level Output Voltage (VOL): 0.1 x VCC
• Maximum Data Rate: 400 Mbps

Detailed Pin Configuration

The 74LVC2T45GS,115 has a total of 8 pins arranged as follows:

___________ | | 1 -| A1 B1 |- 8 2 -| OE GND |- 7 3 -| A2 B2 |- 6 4 -| VCCA VCCB|- 5 |___________|

Functional Features

• Bi-directional voltage level shifting between two independent supply voltages.
• Allows interfacing between devices operating at different voltage levels.
• Supports bidirectional data transfer.
• Automatic direction control based on the voltage level of the control pin (OE).
• Provides protection against bus contention and excessive current draw.

Advantages and Disadvantages

Advantages: - Enables communication between devices with different voltage levels. - Low power consumption. - High-speed operation. - Compact package size.

Disadvantages: - Limited maximum data rate compared to some other level shifters. - Requires careful consideration of voltage compatibility between devices.

Working Principles

The 74LVC2T45GS,115 is a dual-bit, dual-supply voltage level translator. It operates by shifting the voltage levels of digital signals from one supply voltage domain to another. The direction of data transfer is controlled by the OE (Output Enable) pin. When OE is high, the device is in the high-impedance state, allowing bidirectional communication between the two voltage domains. The automatic direction control feature ensures that only one side drives the bus at a time, preventing bus contention and potential damage to the devices.

Detailed Application Field Plans

The 74LVC2T45GS,115 is commonly used in various applications where voltage level translation is required. Some typical application fields include: - Communication interfaces between microcontrollers operating at different voltage levels. - Interfacing between logic devices with different power supply voltages. - Level shifting in battery-powered portable devices. - Industrial automation systems requiring voltage level conversion.

Detailed and Complete Alternative Models

Some alternative models that can be considered for voltage level translation are: - TXS0102: Dual-bit bidirectional voltage-level translator with automatic direction control. - PCA9306: Dual-bit I2C-bus voltage-level translator with overvoltage tolerance. - SN74LVC1T45: Single-bit unidirectional voltage-level translator with automatic direction control.

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