Encyclopedia Entry: 74VCX32500GX

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-voltage, bidirectional level shifting
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Transfers digital signals between devices operating at different voltage levels
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: VCX
• Number of Channels: 8
• Voltage Level Translation: 3.3V to 2.5V and vice versa
• Operating Voltage Range: 1.65V to 3.6V
• Propagation Delay: 2.5 ns (typical)
• Output Drive Capability: ±24 mA
• Input Capacitance: 4 pF (typical)

Detailed Pin Configuration

The 74VCX32500GX IC has a total of 56 pins, which are organized as follows:

• Pins 1-8: Channel A Inputs/Outputs
• Pins 9-16: Channel B Inputs/Outputs
• Pins 17-24: Channel C Inputs/Outputs
• Pins 25-32: Channel D Inputs/Outputs
• Pins 33-40: Channel E Inputs/Outputs
• Pins 41-48: Channel F Inputs/Outputs
• Pins 49-56: Channel G Inputs/Outputs

Functional Features

• Bidirectional level shifting between 3.3V and 2.5V logic levels
• Supports voltage translation for up to 8 channels simultaneously
• High-speed operation with minimal propagation delay
• Low power consumption
• Schmitt-trigger inputs for improved noise immunity
• ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels - High-speed operation allows for efficient data transfer - Low power consumption helps conserve energy - Schmitt-trigger inputs enhance noise immunity, ensuring reliable signal transmission - ESD protection safeguards against electrostatic discharge damage

Disadvantages: - Limited to voltage translation between 3.3V and 2.5V levels - Not suitable for applications requiring level shifting beyond the specified voltage range

Working Principles

The 74VCX32500GX utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional level shifting. It operates by monitoring the input logic levels and adjusting the output levels accordingly. When a high-level signal is received on one side, the IC translates it to the corresponding voltage level on the other side, and vice versa.

Detailed Application Field Plans

The 74VCX32500GX finds application in various scenarios where digital signals need to be transferred between devices operating at different voltage levels. Some common application fields include:

1. Microcontroller Interfacing: Facilitating communication between microcontrollers operating at different voltage levels.
2. Sensor Networks: Enabling connectivity between sensors with varying voltage requirements.
3. Data Communication Systems: Level shifting between different logic families (e.g., TTL and CMOS) in data transmission systems.
4. Battery-Powered Devices: Efficiently translating signals between low-voltage battery-powered devices and higher voltage peripherals.

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Unidirectional voltage level shifter with a single channel.
2. TXB0108PWR: Bidirectional voltage level translator with 8 channels.
3. PCA9306DCUR: I2C bus voltage level translator with two bidirectional channels.

These alternative models offer similar functionality and can be considered as alternatives to the 74VCX32500GX based on specific application requirements.

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