In the 64-LQFP package, you can get the product at a low cost.UART is possible to transmUART on 4, QUART channels.In terms of packaging, Tape & Reel (TR) is used.In the present state, this electronic part is Discontinued.Surface Mount is a way to mount it.2.97V~5.5V supply voltage is required to operate it.A few characteristics of Internal Oscillator, Timer/Counter can be found in it.
ST16C654CQ64TR-F Features
ST16C654CQ64TR-F Applications
There are a lot of MaxLinear, Inc. ST16C654CQ64TR-F UARTs applications.