The board has been programmed with 8 (Input Only) I/Os.In the packaging with the 16-TSSOP (0.173, 4.40mm Width), there is a device enclosed in the package.There is an option of the Tape & Reel (TR) case that you can choose from.There is a vote within the 4.5V~5.5V range that is supplied.The recommended mounting type is Surface Mount, which makes it suitable for most applications.A device works when its operating temperature ranges from -40°C~125°C to -40°C~125°C.In order to achieve a good performance, it works at a frequency of 5MHz.In total, there are 16 pins on the part.
PCA9704PWJ Features
PCA9704PWJ Applications
There are a lot of NXP USA Inc. PCA9704PWJ I/O Expanders applications.