SN74ALVCF162835LR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, configurable voltage translation
• Package: 56-pin BGA (Ball Grid Array)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Tape and reel, 250 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (VREF): 0V to VCCA
• Output Voltage Range (VREF): 0V to VCCB
• Maximum Data Rate: 400 Mbps
• Number of Channels: 16
• Input/Output Compatibility: LVTTL/TTL

Detailed Pin Configuration

The SN74ALVCF162835LR has a total of 56 pins, which are assigned 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: Power and Ground Pins

Functional Features

• Configurable Voltage Translation: Allows for bidirectional level shifting between different voltage domains.
• Automatic Direction Control: Eliminates the need for external control signals by automatically sensing the direction of data flow.
• Low Power Consumption: Operates at low supply voltages, reducing power consumption in portable devices.
• High-Speed Operation: Supports data rates up to 400 Mbps, enabling fast communication between different logic systems.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for compatibility with various systems. - Configurable voltage translation provides flexibility in interfacing different logic levels. - Automatic direction control simplifies system design and reduces external circuitry.

Disadvantages: - Limited number of channels may not be suitable for applications requiring a higher channel count. - BGA package may require specialized equipment for soldering and rework.

Working Principles

The SN74ALVCF162835LR operates by utilizing a combination of level shifting circuits and automatic direction control. The level shifting circuits enable bidirectional translation between different voltage domains, while the automatic direction control senses the data flow direction and adjusts the internal circuitry accordingly.

When the input signal is at a logic low level, the corresponding output will also be at a logic low level, regardless of the voltage domain. Similarly, when the input signal is at a logic high level, the output will be at a logic high level. This allows for seamless translation between different logic levels.

Detailed Application Field Plans

The SN74ALVCF162835LR is commonly used in various applications that require voltage translation between different logic levels. Some specific application fields include:

1. Microcontroller Interfaces: Facilitates communication between microcontrollers operating at different voltage levels.
2. Memory Interfaces: Enables data transfer between memory modules with varying voltage requirements.
3. Communication Systems: Supports level shifting in serial communication interfaces such as UART, SPI, and I2C.
4. Industrial Automation: Provides voltage translation capabilities in industrial control systems.

Detailed and Complete Alternative Models

1. SN74LVC1T45: Single-channel voltage level translator with similar characteristics and package options.
2. TXB0108: Eight-channel bidirectional voltage-level translator with selectable voltage translation levels.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator with integrated level shifters.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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