Premier Farnell
uart, dual, 32byte fifo, 16c652; voltage, supply min:2.5v; voltage, supply max:5v; termination type:smd; case style:lqfp; no. of pins:48; operating temperature range:-40°c to +85°c; temp, op. max:85°c; temp, op. min:-40°c; base number:16; ic generic number:16c652; logic function number:16c652; packaging type:peel pack; baud rate bits per second:5mbps; clock frequency:80mhz; max data rate:5mbps; no. of channels:2; uart features:transmit / receive fifo 32bytes; uart type:asynchronous; voltage, vcc max:5v
http://grh.premierfarnell.com/grh.aspx?mid=1006780&sku=SC16C... 
