NXP | PCA9703PW/Q900,118

The PCA9703PW/Q900,118 is a low power SPI general Purpose Input (GPI) shift register, designed to monitor the status of switch inputs.

It generates an interrupt when one or more of the switch inputs change the state but allows selected inputs to not  generate interrupts using the interrupt masking feature.

Features:

• 16 general purpose input ports
• 18 V tolerant input ports with 100 kΩ external series resistor
• Input LOW threshold 0.55 × VDD with minimum of 2.5 V at VDD = 4.5 V
• Input hysteresis 0.04 × VDD with minimum of 180 mV at VDD = 4.5 V
• Open-drain interrupt output
• Interrupt enable pin (INT_EN) disables GPI pins and interrupt output
• Interrupt-masking feature allows no interrupt generation from selected inputs
• VDD range: 4.5 V to 5.5 V
• IDD is very low 2.5 μA maximum
• SPI serial interface with speeds up to 5 MHz
• SPI supports daisy-chain connection for large switch numbers
• AEC-Q100 compliance available
• Operating temperature range: −40 °C to +125 °C
• Offered in TSSOP24 and HWQFN24 packages

Applications:

• Automotive
• Industrial equipment
• Cellular telephones
• Emergency lighting