SN74ABT646DGVRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver and Register
• Characteristics: High-speed, low-power, bidirectional transceiver with 3-state outputs
• Package: VSSOP-56
• Essence: Facilitates bidirectional data transfer between different bus systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 6.5ns
• Maximum Operating Frequency: 200MHz

Detailed Pin Configuration

The SN74ABT646DGVRG4 has a total of 56 pins, which are distributed as follows:

• Pins 1 to 7: Port A Data Inputs/Outputs (A1 to A7)
• Pins 8 to 14: Port B Data Inputs/Outputs (B1 to B7)
• Pins 15 to 21: Port C Data Inputs/Outputs (C1 to C7)
• Pins 22 to 28: Port D Data Inputs/Outputs (D1 to D7)
• Pins 29 to 35: Port E Data Inputs/Outputs (E1 to E7)
• Pins 36 to 42: Port F Data Inputs/Outputs (F1 to F7)
• Pins 43 to 49: Control Inputs (DIR, OE, LE, CLK, G1, G2A, G2B)
• Pins 50 to 56: Power and Ground Connections (VCC, GND)

Functional Features

• Bidirectional Data Transfer: Allows data to be transmitted in both directions between different bus systems.
• 3-State Outputs: The outputs can be disabled, effectively disconnecting the device from the bus.
• Output Enable (OE) Control: Enables or disables the outputs.
• Latch Enable (LE) Control: Latches the input data when LE is high.
• Clock (CLK) Input: Synchronizes the data transfer operation.
• Direction (DIR) Control: Determines the direction of data flow.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer. - Low-power consumption helps conserve energy. - Bidirectional capability simplifies bus system design. - 3-state outputs provide flexibility in controlling the bus.

Disadvantages: - Limited voltage range may restrict compatibility with certain systems. - Temperature limitations may affect performance in extreme environments. - Complex pin configuration requires careful attention during circuit design.

Working Principles

The SN74ABT646DGVRG4 operates by receiving data from one bus system and transmitting it to another. The bidirectional nature of the device allows for data transfer in both directions. The control inputs (DIR, OE, LE, CLK, G1, G2A, G2B) determine the direction of data flow, enable/disable the outputs, latch the input data, and synchronize the operation.

When the DIR input is set to a specific logic level, the data is transferred in the corresponding direction. The OE input enables or disables the outputs, while the LE input latches the input data when activated. The CLK input synchronizes the data transfer operation, ensuring accurate timing. The G1, G2A, and G2B inputs control the output enable and direction functions.

Detailed Application Field Plans

The SN74ABT646DGVRG4 is commonly used in various applications that require bidirectional data transfer between different bus systems. Some specific application fields include:

1. Communication Systems: Facilitates data exchange between different communication protocols, such as UART, SPI, and I2C.
2. Embedded Systems: Enables communication between microcontrollers and peripheral devices, such as sensors, actuators, and displays.
3. Networking Equipment: Supports data transmission between network interfaces, switches, routers, and other networking components.
4. Industrial Automation: Allows for data transfer between control systems, PLCs, and various industrial devices.
5. Automotive Electronics: Used in automotive communication networks, such as CAN (Controller Area Network) and LIN (Local Interconnect Network).

Detailed and Complete Alternative Models

1. SN74ABT646ADW: Wide SOIC-56 package variant of the SN74ABT646DGVRG4.
2. SN74ABT646ADB: SSOP-56 package variant of the SN74ABT646DGVRG4.
3. SN74ABT646APWRG4: TSSOP-56 package variant of the SN74ABT646DGVRG4.

These alternative models offer similar functionality and characteristics to the SN74ABT646DG