aMG USB Connect

Key Features

• Single chip USB to asynchronous serial data transfer interface.
• Entire USB protocol handled on the chip. No USB specific firmware programming required.
• Fully integrated 2048 byte EEPROM for storing device descriptors and CBUS I/O configuration.
• Fully integrated clock generation with no external crystal required plus optional clock output selection enabling a glue-less interface to external MCU or FPGA.
• Data transfer rates from 300 baud to 3 Mbaud.
• 512 byte receive buffer and 512 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput.
• FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
• Configurable CBUS I/O pins.
• Transmit and receive LED drive signals.
• UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity
• Synchronous and asynchronous bit bang interface options with RD# and WR# strobes.
• Battery Charger Detection. May be used by mobile devices to detect the presence of a charger on the USB port to enable higher current / faster charging of batteries.
• Device supplied pre-programmed with unique USB serial number.
• Supports bus powered, self powered and high-power bus powered USB configurations.
• Integrated +3.3V level converter for USB I/O.
• True 3.3V CMOS drive output and TTL input.
  • (operates down to 1V8 with external pull ups and is also 5V tolerant)
• Configurable I/O pin output drive strength.
• Integrated power-on-reset circuit.
• UART signal inversion option.
• Internal 3.3V/1.8V LDO regulators
• Low operating current of 8mA (typical) and USB suspend current of 125uA (typical) current.
• Low USB bandwidth consumption.
• UHCI/OHCI/EHCI host controller compatible.
• USB 2.0 Full Speed compatible.
• Extended operating temperature range: -40°C to 85°C
• Available in compact Pb-free 20 Pin SSOP and QFN packages (both RoHS compliant).