Module USB power supply voltage: DC5V; USB 2.0 full speed compatible. Built-in 3.3V/1.8V LD0 voltage stabilizer. Extended operating temperature range: -40 to 85 20-pin SSOP and QFN package (compliant with RoHS). Compatible with UHCI/0HCI/EHCI host controllers. Integrated power-on reset circuit. The data transmission rate is 1 Megabyte per second. Each chip has a pre-programmed USB serial number. Supports USB configurations for bus power supply, self-power supply and high-power bus power supply. Built-in +3.3V level converter for USB I/0. True 3.3V CMOS driver output and TTL input. The working voltage drops to 1.8V through an external pull-up resistor. The I/ O voltage level ranges from 1.8V to 3.3V(withstand voltage up to 5V). current for pin 110 can be configured. The entire USB protocol is processed on this chip, eliminating the need for USB-specific firmware programming. FT1248 serial and parallel interface, available in 1,2,4, or 8-bit mode. Similar to the SPI slave device 1-bit mode. Integrated 2048-byte multiple programmable () memory for storing device descriptions and CBUS I/0 configurations. Typical applications: Single-chip USB to dual-channel UART (RS232RS422 or RS485) Single-chip USB to dual-channel FIFO. Single-chip USB to dual-channel JTAG. Single-chip USB to dual-channel SPI. Single-chip USB to dual-channel I2C. Single USB to dual-channel bit. A dual combination of a single USB to the above interfaces. Single-chip USB to dual-channel interface. High-speed serial optical interface. The target interface from a single USB to the CPU (such as memory) is for both machines. Color:Black Material:PCB Package Contents: 1 * Module 2 * Pins Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.