http://www.chinaicmart.com/series-PI5/PI5C16212V.html
Product Description
Pericom Semiconductor=92s PI5C16212 is a 24-bit bus exchange switches
designed with a low On-Resistance allowing inputs to be connected
directly to outputs. This device operates as a 24-bit bus switch or a
12-bit exchanger that provides data exchanging between the four signal
****ts via the data select pins (S0-S2).
