SN74ALVCH16903DGVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • Wide voltage range translation (1.2V to 3.6V)
  • High-speed operation (up to 400 Mbps)
  • Low power consumption
  • Schmitt-trigger inputs for noise immunity
• Package: VSSOP (Very Small Outline Package)
• Essence: Logic level translation between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (A Port): 0V to VCCA + 0.5V
• Input Voltage Range (B Port): 0V to VCCB + 0.5V
• Output Voltage Range (A Port): 0V to VCCA + 0.5V
• Output Voltage Range (B Port): 0V to VCCB + 0.5V
• Maximum Propagation Delay: 4.7 ns
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74ALVCH16903DGVR has a total of 56 pins, arranged as follows:

___________ | | 1 | 56 | VCCA 2 | 55 | GND 3 | 54 | A1 4 | 53 | B1 . | . | . . | . | . . | . | . 27 | 30 | Y28 28 | 29 | GND |___________|

Functional Features

• Logic level translation between two voltage domains (A and B ports)
• Bidirectional data flow
• Automatic direction control based on the voltage levels of VCCA and VCCB

Advantages

• Wide voltage range translation allows compatibility with various systems
• High-speed operation enables fast data transfer
• Low power consumption helps in reducing overall system power requirements
• Schmitt-trigger inputs provide noise immunity, ensuring reliable operation

Disadvantages

• Limited to logic level translation and does not perform other functions
• Not suitable for applications requiring voltage translation beyond the specified range

Working Principles

The SN74ALVCH16903DGVR is a bidirectional logic level translator that operates by monitoring the voltage levels of the VCCA and VCCB pins. When the voltage at VCCA is higher than VCCB, the A port is considered the high-voltage side, and the B port is considered the low-voltage side. Conversely, when the voltage at VCCB is higher than VCCA, the A port becomes the low-voltage side, and the B port becomes the high-voltage side. The device automatically controls the direction of data flow based on this voltage comparison.

Detailed Application Field Plans

The SN74ALVCH16903DGVR is commonly used in various applications where logic level translation is required between different voltage domains. Some specific application fields include: - Microcontrollers interfacing with sensors or peripheral devices operating at different voltage levels - Communication systems involving multiple voltage domains, such as UART, I2C, SPI interfaces - Battery-powered devices where low power consumption is crucial

Detailed and Complete Alternative Models

• SN74LVC1T45DBVR
• SN74AVC4T245RGYR
• SN74LV1T34DBVR
• SN74LVC2T45DCTR
• SN74AVC4T245PWRE4

These alternative models offer similar logic level translation capabilities and can be considered as substitutes for the SN74ALVCH16903DGVR in various applications.

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