SN74LVTH646DGVRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-voltage, and low-power consumption
• Package: VFBGA (Very Thin Fine-Pitch Ball Grid Array)
• Essence: Bi-directional voltage level translator with 3-state outputs
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400MHz
• Number of Channels: 8
• Output Drive Strength: ±12mA
• Propagation Delay: 2.5ns (Max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVTH646DGVRG4 has a total of 56 pins, which are distributed as follows:

• Pins 1 to 8: Channel A Data Inputs/Outputs (D1-D8)
• Pins 9 to 16: Channel B Data Inputs/Outputs (D1-D8)
• Pins 17 to 24: Channel Enable Inputs (OE1-OE8)
• Pins 25 to 32: Channel Direction Control Inputs (DIR1-DIR8)
• Pins 33 to 40: Channel Output Enable Inputs (OEN1-OEN8)
• Pins 41 to 48: Channel Output Enable Outputs (OEN1-OEN8)
• Pins 49 to 56: Ground (GND) and Power Supply (VCC)

Functional Features

• Bi-directional voltage level translation between two different voltage domains.
• 3-state outputs allow multiple devices to share a common bus.
• Automatic direction control based on DIR inputs.
• Output enable control for each channel.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer. - Low-voltage operation reduces power consumption. - Bi-directional capability simplifies circuit design. - 3-state outputs enable bus sharing.

Disadvantages: - Limited to a maximum operating frequency of 400MHz. - Requires careful consideration of voltage compatibility between domains.

Working Principles

The SN74LVTH646DGVRG4 is designed to translate signals between two voltage domains. It uses a combination of level shifters and transceivers to achieve bi-directional communication. The direction of data flow is controlled by the DIR inputs, while the OE inputs enable or disable the outputs. The 3-state outputs allow multiple devices to be connected to a common bus, reducing the number of required pins.

Detailed Application Field Plans

The SN74LVTH646DGVRG4 is commonly used in various applications, including:

1. Communication Systems: Facilitates signal translation between different voltage levels in communication interfaces such as UART, SPI, and I2C.
2. Microcontroller Interfacing: Enables communication between microcontrollers operating at different voltage levels.
3. Memory Interfaces: Provides level shifting capabilities for interfacing with different memory technologies like SRAM, DRAM, and Flash.
4. Industrial Automation: Allows for voltage level translation in industrial control systems, PLCs, and sensor networks.
5. Automotive Electronics: Supports voltage level conversion in automotive applications, including infotainment systems and vehicle diagnostics.

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Single-bit level shifter with 3-state output.
2. SN74AVC4T245PW: Quad-bit level shifter with 3-state output.
3. SN74LVC8T245PWR: Octal-bit level shifter with 3-state output.
4. SN74LVCH16245ADGGR: 16-bit level shifter with 3-state output.

These alternative models offer similar functionality and can be considered as replacements for the SN74LVTH646DGVRG4 in different applications.

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