The PCA8550PW is a TSSOP-16 RoHS compliant electronic signal switch, multiplexer and decoder manufactured by NXP. It can integrate 3-bit 1-of-8 decoding and 4 general I/Os with interrupts. This device supports low-voltage signals from 1.65V to 3.6V and is useful for power saving applications, as well as those requiring low power consumption and reliable operations. It can also perform multiplexing, data buffering and transmission, and supports hotrod and port-muxing applications. This device is a very cost effective way to meet power and signal control requirements in a wide range of designs.