Found 4 alternatives for FT311D-32L1C-R by FTDI, Future Technology Devices International Ltd. Interface Controllers — 32-LQFP.
IC HUB CONTROLLER USB 2.0 32LQFP
IC HUB CONTROLLER USB 2.0 32LQFP
IC HUB CONTROLLER USB 2.0 32LQFP
IC USB PERIPH CONTROLLER 32LQFP