There is a cost-effective package 80-LQFP available.Transmissions are made using 4, QUART channels.As for packaging, Tray is chosen.At present, this electronic part has a status of Obsolete.You can mount it by using Surface Mount.There is 2.5V 3.3V 5V supply voltage for it.An 80-pin integrated circuit is what this particular device is.As a base part number, it is specified as SC16C554.
SC16C554BIB80,557 Features
SC16C554BIB80,557 Applications
There are a lot of NXP USA Inc. SC16C554BIB80,557 UARTs applications.