The PI74ALVCH16721V is a 20-bit universal bus transceiver manufactured by Pericom Semiconductor (now Diodes Incorporated). This device is designed for high-speed, low-voltage operation in various data transmission applications.

Applications:

• Backplane transceivers
• Memory interface
• Data buses in servers and workstations
• High-speed data acquisition systems
• Level shifting applications
• Networking equipment

Features:

• Number of Bits: 20
• Operating Voltage: 1.65V to 3.6V
• Propagation Delay: Typically 3.1 ns at 3.3V
• Output Drive Capability: ±24mA at 3.3V
• Bus Hold on Data Inputs Eliminates the Need for External Pull-Up Resistors
• Power-Down Protection: Fully supports partial-power-down operation
• Package: TSSOP56, TVSOP56
• Operating Temperature Range: -40°C to +85°C
• Hot insertion capable

Benefits:

• High Speed: Low propagation delay allows for fast data transfer rates, improving system performance.
• Low Voltage Operation: Operates at voltages ranging from 1.65V to 3.6V, making it suitable for low-power applications.
• High Drive Capability: The ±24mA output drive capability ensures reliable signal transmission over the bus.
• Reduced Component Count: Integrated bus hold feature eliminates the need for external pull-up resistors.
• Power Efficiency: Power-down protection reduces power consumption during inactive periods.
• Versatile Application: Suitable for a wide range of data transmission and level shifting applications.

Additional Details:

The PI74ALVCH16721V transceiver provides bidirectional data transfer between two buses. It features a control input (DIR) that determines the direction of data flow. An output enable (OE) input allows the outputs to be placed in a high-impedance state, disconnecting the device from the bus. The device incorporates power-down protection circuitry, which ensures that the outputs remain in a high-impedance state when the supply voltage is removed, preventing backflow current and potential damage to the device or other connected components. This transceiver is available in TSSOP and TVSOP packages, offering options for different board layouts and space constraints.