Part Number : PCA9544A
Function : 4-CHANNEL I2C AND SMBus MULTIPLEXER
Package : SOIC, TSSOP 20 Pin Type
Maker : Texas Instruments
Pinouts : 
Description :
The PCA9544A is a quad bidirectional translating switch controlled via the I2C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. One SCL/SDA pair can be selected at a time, and this is determined by the contents of the programmable control register.
Datasheet PDF Download : 
Others datasheet of same file :
PCA9544, PCA9544ADGVR, PCA9544ADW, PCA9544ADWG4, PCA9544ADWR
