Features

• Ultra-low current consumption

• 9V or 3V to 5V battery operation

• LDO for microcontroller supply

• 10-bit ADC for measuring voltage on 7 analog pins

• Drives two LED emitters with 8-bit current DAC

control from 45mA to 600mA

• Two photodiode receivers with programmable gain

amplifiers

• General purpose IO

• Horn driver with clamp diodes

• SPI interface

Applications

• Photoelectric smoke detectors