Features: Module USB supply voltage: DC5V. USB 2.0 full speed compatible, low USB bandwidth consumption. Built-in 3.3V / 1.8V LDO regulator. Extended operating temperature range: -40C to 85C. 20-Pin -SSOP and QFN packages (RoHS compliant). Specifications: Material: Printed Circuit Board for UHCI / OHCI / EHCI host controllers. Integrated power-on-reset circuit. The data transfer rate is 1 megabyte per second. Each chip has a pre-programmed unique USB serial number. Supports bus-powered, self-powered and high-power bus-powered USB configurations. Built-in + 3.3V level shifter for USB I/O. Built-in + 3.3V level shifter for USB I/O. True 3.3V CMOS driver output and TTL input. (The operating voltage drops to 1V8 through an external pull-up resistor) The I/O voltage level is from 1.8V to 3.3V (withstand voltage to 5V). The drive current of the I/O pin can be configured. The entire USB protocol is processed on this chip and does not require USB-specific firmware programming. FT1248 serial parallel interface in 1, 2, 4, or 8-bit mode. Similar to the SPI slave 1-bit mode. Integrated 2048-byte multiple-programmable memory for storage device descriptions and CBUS I/O configuration. An integrated clock generator eliminates the need for an external crystal and has a clock output option for seamless connection to an external MCU or FPGA. A 512-byte receive buffer and a 512-byte transmit buffer enable high data throughput with buffering. Battery charger detection. Mobile devices can use it to detect the presence of a charger on the USB port for higher current/faster\ 8 mA (typ) of low operating current and 125 A (typ) of USB suspend current. Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Dual Channel Module