The CP2688QN32S-B1, produced by Chiphomer, is a USB to Multi-UART bridge controller. This chip provides a seamless interface between a USB host and multiple UART serial communication channels. It is a powerful solution for applications requiring multiple serial connections through a single USB port.

Applications

• Multi-port serial adapters
• Industrial automation equipment
• Point-of-Sale (POS) systems with multiple peripherals
• Embedded systems requiring multiple serial interfaces
• Diagnostic and debugging tools

Features

• Full-speed USB (12 Mbps)
• Integrated USB transceiver
• Supports up to 8 UART channels
• UART data rates up to 3 Mbps per channel
• Adjustable baud rates for each UART channel
• Internal oscillator, eliminating the need for external crystal
• 32-pin QFN package
• GPIO pins for custom control and status indication
• Operating temperature range: -40°C to +85°C

Benefits

• Consolidated USB connectivity for multiple UART devices
• Reduced board space and component count
• High-speed data transfer across all UART channels
• Simplified integration into existing serial communication systems
• Reliable performance in a variety of operating conditions
• Cost-effective solution for multi-port serial communication

Additional Details

The CP2688QN32S-B1 operates as a USB Communications Device Class (CDC) device, enabling driverless installation on most modern operating systems. This feature simplifies deployment and reduces the time needed for software development. Each of the eight UART channels can be independently configured for baud rate, data bits, parity, and stop bits, providing maximum flexibility for connecting to various serial devices. The integrated oscillator eliminates the need for an external crystal, saving space and reducing BOM costs. The available GPIO pins can be used for custom control functions, such as flow control or status LEDs. The compact 32-pin QFN package makes the chip ideal for space-constrained applications.

This device is designed for robust performance across a wide temperature range, making it suitable for industrial and automotive applications. The low power consumption design is well-suited for portable devices and systems operating on battery power. Furthermore, the device incorporates built-in ESD protection to enhance reliability.