The PI3B16210B from Pericom is a 16-bit to 20-bit multiplexer/demultiplexer bus switch. It's designed for high-performance applications requiring minimal signal distortion and propagation delay. This device effectively allows the multiplexing of two 16-bit data buses onto a single 20-bit bus, or the demultiplexing of a 20-bit bus into two 16-bit buses.

Applications:

• Memory interfacing and expansion
• Bus isolation and switching
• Data routing in high-speed systems
• Mobile devices
• Networking equipment
• Server applications

Features:

• Low On-Resistance (Ron): Ensures minimal signal attenuation and distortion through the switch.
• Low Propagation Delay: Maintains signal integrity in high-speed applications.
• Wide Bandwidth: Supports high-frequency signals without significant degradation.
• Bi-directional Switching: Allows signals to pass in either direction through the switch, offering flexibility in design.
• Low Power Consumption: Ideal for power-sensitive applications.
• TTL-Compatible Control Inputs: Simplifies interfacing with standard logic circuits.
• Available in various package options for design flexibility.

Benefits:

• Improved System Performance: Low Ron and propagation delay contribute to faster data transfer rates.
• Increased System Flexibility: Bi-directional switching and multiplexing/demultiplexing capabilities allow for versatile system configurations.
• Reduced Board Space: Integration of switching functions reduces the component count.
• Lower Power Consumption: Minimizes energy usage.
• Enhanced Signal Integrity: Preserves signal quality.

Additional Details:

The PI3B16210B operates from a single 3.3V supply. It’s designed to minimize signal reflections and crosstalk, which are critical in high-speed digital systems. The device is available in various package options to suit different board layouts and application requirements. It is typically used in applications where the bandwidth and signal integrity are of great concern. Specifically, it is used to switch between different memory banks or peripherals connected to a central processing unit. The control inputs are designed to be compatible with TTL logic levels, allowing for easy integration with a wide range of microprocessors and microcontrollers.