SN74AVC16646DGVR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Buffer/Driver
• Characteristics: High-speed, low-voltage, 16-bit bus transceiver with 3-state outputs
• Package: VSSOP (Very Small Outline Package)
• Essence: Transmits and receives data between two bidirectional buses
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 400Mbps
• Number of Channels: 16
• Output Drive Capability: ±24mA
• ESD Protection: >2000V

Detailed Pin Configuration

The SN74AVC16646DGVR has a total of 56 pins, which are divided into various functional groups:

• Group A (Pins 1-8): Bus B Data Inputs/Outputs
• Group B (Pins 9-16): Bus A Data Inputs/Outputs
• Group C (Pins 17-24): Control Inputs
• Group D (Pins 25-32): Control Outputs
• Group E (Pins 33-40): Power and Ground Pins
• Group F (Pins 41-48): Enable Inputs
• Group G (Pins 49-56): Enable Outputs

For a detailed pin configuration diagram, please refer to the datasheet.

Functional Features

• Bidirectional Data Transmission: Allows data to be transmitted in both directions between two buses.
• 3-State Outputs: Provides high impedance state when disabled, allowing multiple devices to share the same bus without interference.
• Voltage Level Translation: Supports voltage translation between different logic levels, enabling compatibility between devices operating at different voltages.
• High-Speed Operation: Capable of handling data rates up to 400Mbps, making it suitable for high-speed communication applications.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - High-speed operation enables efficient data transfer in time-critical applications. - 3-state outputs facilitate bus sharing and reduce signal interference. - ESD protection ensures robustness against electrostatic discharge.

Disadvantages: - Limited number of channels (16) may not be sufficient for certain applications requiring a larger number of data lines. - VSSOP package may pose challenges during soldering or PCB assembly due to its small size.

Working Principles

The SN74AVC16646DGVR operates by receiving data from one bus (Bus A) and transmitting it to another bus (Bus B), and vice versa. The direction of data flow is controlled by the control inputs. When enabled, the device actively drives the corresponding bus lines based on the input data. When disabled, the outputs enter a high impedance state, allowing other devices to drive the bus lines.

Detailed Application Field Plans

The SN74AVC16646DGVR is commonly used in various applications, including:

1. Communication Systems: Enables bidirectional data transfer between different subsystems or modules within a communication system.
2. Data Acquisition: Facilitates the transfer of digital data from sensors or peripheral devices to a central processing unit.
3. Industrial Automation: Allows communication between different components of an automated system, such as PLCs, motor controllers, and sensors.
4. Networking Equipment: Used in routers, switches, and network interface cards to enable data transmission between different network segments.
5. Test and Measurement Instruments: Provides signal buffering and level translation capabilities in test equipment, ensuring accurate data acquisition and analysis.

Detailed and Complete Alternative Models

1. SN74AVC16646DGV: Similar to SN74AVC16646DGVR, but available in a different package (TSSOP).
2. SN74LVC16646ADGGR: Low-voltage version with similar functionality, but operates at a supply voltage range of 1.65V to 3.6V.
3. SN74HC16646N: High-speed CMOS logic level shifter with comparable features, but operates at a higher supply voltage range (2V to 6V).

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

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