Encyclopedia Entry: 74LVC1T45GS,132

Product Overview

Category

The 74LVC1T45GS,132 belongs to the category of integrated circuits (ICs) and specifically falls under the group of logic level shifters.

Use

This product is primarily used for voltage level shifting in digital systems. It allows for seamless communication between devices operating at different voltage levels.

Characteristics

• Logic Level Shifter
• Single-bit bidirectional voltage translator
• Low voltage operation (1.65V to 5.5V)
• High-speed operation (up to 400 Mbps)
• Supports mixed-mode signal operation
• Schmitt-trigger action on all inputs

Package

The 74LVC1T45GS,132 is available in a small SOT753 package, which is a surface-mount package with three leads.

Essence

The essence of this product lies in its ability to facilitate voltage level translation, enabling compatibility between devices operating at different voltage levels.

Packaging/Quantity

The 74LVC1T45GS,132 is typically packaged in reels or tubes, containing a quantity of 3000 units per reel/tube.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: GND to VCC
• Output Voltage Range: GND to VCC
• Maximum Operating Frequency: 400 Mbps
• Input Capacitance: 3 pF
• Output Capacitance: 3 pF
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74LVC1T45GS,132 has three pins:

1. A: Input/Output pin for channel A.
2. B: Input/Output pin for channel B.
3. OE: Output Enable pin for controlling the direction of data flow.

Functional Features

• Bidirectional voltage translation between two different voltage domains.
• Automatic direction control based on the OE pin.
• Supports mixed-mode signal operation, allowing for seamless integration of devices with different voltage levels.
• Schmitt-trigger action on all inputs ensures robust and noise-immune operation.

Advantages and Disadvantages

Advantages

• Enables communication between devices operating at different voltage levels.
• High-speed operation allows for efficient data transfer.
• Small package size facilitates space-constrained designs.
• Wide supply voltage range provides flexibility in system design.

Disadvantages

• Limited to single-bit bidirectional voltage translation.
• Not suitable for applications requiring simultaneous translation of multiple signals.

Working Principles

The 74LVC1T45GS,132 utilizes a combination of MOSFETs and level-shifting circuitry to achieve voltage level translation. The direction of data flow is controlled by the OE pin, which enables or disables the translation function.

When the OE pin is high, the device is in the active state, allowing bidirectional voltage translation between channels A and B. When the OE pin is low, the device is in the high-impedance state, isolating the input and output channels.

Detailed Application Field Plans

The 74LVC1T45GS,132 finds application in various scenarios where voltage level shifting is required. Some common application fields include:

1. Interfacing between microcontrollers operating at different voltage levels.
2. Communication between sensors and microprocessors with different voltage requirements.
3. Level translation in battery-powered portable devices.
4. Signal conversion in industrial automation systems.

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the 74LVC1T45GS,132. Some notable alternatives include:

1. SN74LVC1T45: Manufactured by Texas Instruments, this logic level shifter offers similar specifications and features.
2. NC7SZ125: Produced by Fairchild Semiconductor, this single-bit bidirectional voltage translator is another viable alternative.
3. 74LVC1T45GW,125: A variant of the 74LVC1T45GS,132, this model is manufactured by Nexperia and shares many similarities.

These alternative models can be considered based on specific application requirements and availability.

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