This part is a kind of semiconductor called HK24C32.

Function of this product has Two-Wire Serial EEPROM.

Manufacturers : Hang Shun chip technology

Image and pinout :

Some of the text within the PDF file :

Two-Wire Serial EEPROM 32K, 64K (8-bit wide) FEATURES  Low voltage and low power operations:  HK24C32/HK24C64: VCC = 1.8V to 5.5V  Maximum Standby current < 1µA (typically 0.02µA and 0.06µA @ 1.8V and 5.5V respectively).  32 bytes page write mode.  Partial page write operation allowed.  Internally organized: 4,096 × 8 (32K), 8,192 × 8 (64K).  Standard 2-wire bi-directional serial interface.  Schmitt trigger, filtered inputs for noise protection.  Self-timed Write Cycle (5ms maximum).  800 kHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility.  Automatic erase before write operation.  Write protect pin for hardware data protection.  High reliability: typically 1, 000,000 cycles endurance.  100 years data retention.  Industrial [ ... ]

HK24C32 PDF Datasheet Download