IC 74HC273 8 D-flip-flop IC (74273 IC) DIP-20 Package GBPC3510W It's an optical sensor that

It's an optical sensor that measures the absorbance of pulsating blood through a photodetector after emitting two wavelengths of light from two LEDs - a red and an infrared one

AC input range selectable by switch

recovers automatically Working Temperature -25°C to 70°C

Description

flexible circuit boards

IC 74HC273 8 D-flip-flop IC (74273 IC) DIP-20 Package GBPC3510W It's an optical sensor that74HC series ICs are High speed logic gates with very low power consumption that utilize advanced silicon gate CMOS technology and 74HC273 is one of them. 74HC273 ICs contain eight positive edge triggered D type flip flops with single rail outputs with individual data input to each flip flop. And also provide direct active low clear ( CLR ) input. The 74HC273 ICs have a wide operating range of VCC from 2 V to 6 V. Maximum current consumption is 80 uA