UART 3V/5V 24-Pin QFN EP Tray

The USB2SER is a USB to UART bridge controller on a 5 x 5 mm lead free QFN24. It is a simple low cost solution to enable a USB for an embedded system with a UART port, reducing external component counts. It supports USB 2.0 full-speed and TTL RS232, or RS485 UART with options for hardware flow control, Software Flow control (Xon-Xoff), even or odd parity, and stop bits configuration.

• Single chip USB to UART Data Transfer (RS232 or RS485)
• USB specification 2.0 compliant, full speed (12 Mbps)
• User programmable custom baud rates from 300 bps to 115200 bps
• UART supports 8 bit data, 1 or 2 stop bits and odd, even or no parity
• RESUME signal to request a remote wake-up and SUSPEND output to indicate that the device is in suspended mode
• Integrated 3.3 V regulator for a USB IO
• Integrated Power-On-Reset circuit
• Integrated 2 MHz – 48 Mhz clock multiplier PLL
• Supports 2 MHz, 4 MHz, 6 MHz, 8 MHz, 12 MHz, and 16 MHz external crystals with automatic crystal frequency detection
• USB bulk data transfer modes for data communication
• 3 V to 5 V single supply operation
• UHCI / OHCI / EHCI host controller compatible
• Configurable USB, VID, PID, and device description strings in the internal flash
• Configurable password to protect the device from additional parameter modifications
• Data formats supported 8 bits data, 1 and 2 stop bits
• Parity odd, even, no parity
• Hardware flow control (RTC / CTS) or Software Xon/Xoff flow control
• Adjustable receive buffer timeout from 1 ms through 99 ms.
• RS485_TXEN signal to support RS485
• USB and UART activity pins to indicate communication activity and fail sequences