This part is a kind of semiconductor called 24LC16B.

Function of this product has EEPROM.

Manufacturers : MicrochipTechnology

Image and pinout :

Some of the text within the PDF file :

24LC16B 16K I2C Serial EEPROM Extended (-55°C to +125°C) Operating Temperatures Device Selection Table Part Number VCC Range Max. Clock Frequency 24LC16B 2.5V-5.5V 400 kHz Temp. Ranges M Features • Single Supply with Operation down to 2.5V • Low-Power CMOS Technology: - Active current 1 mA, typical - Standby current, 1 µA, typical • 2-Wire Serial Interface, I2C Compatible • Schmitt Trigger Inputs for Noise Suppression • Output Slope Control to Eliminate Ground Bounce • 100 kHz and 400 kHz Clock Compatibility • Page Write Time 5 ms Maximum • Self-Timed Erase/Write Cycle • 16-Byte Page Write Buffer • Hardware Write-Protect • ESD Protection >4,000V • More than 1 Million Erase/Write Cycles • Data Retention >200 Years • Factory Programming Available • RoH [ ... ]

24LC16B PDF Datasheet Download