PCA9654E - 8-bit I/O Expander
Symbol AD0 AD1 AD2 IO0 IO1 IO2 IO3 VSS IO4 IO5 IO6 IO7 INT SCL SDA VDD SOIC16, TSSOP16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin QFN16, WQFN16 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description Address Input 0 Address Input 1 Address Input 2 I/O 0 I/O 1 I/O 2 I/O 3 Supply Ground I/O 4 I/O 5 I
PCA9654E, PCA9654EA 8-bit I/O Expander for I2C Bus and SMBus with Interrupt The PCA9654E/PCA9654EA provides 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C bus/SMBus applications.
The PCA9654E/PCA9654EA consists of 8 bit Configuration (Input or Output selection), Input, Output and Polarity Inversion (active HIGH or active LOW operation) registers.
The system master may set the I/Os as either inputs or outputs by writing to the I/O configuration bits.
The
PCA9654E Features
* VDD Operating Range: 1.65 V to 5.5 V
* SDA Sink Capability: 30 mA
* 5.5 V Tolerant I/Os
* Polarity Inversion Register
* Active LOW Interrupt Output
* Low Standby Current
* Noise Filter on SCL/SDA Inputs
* No Glitch on Power
* up
