This part is a kind of semiconductor called 25P05.

Function of this product has M25P05.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

M25P05 512 Kbit, Low Voltage, Serial Flash Memory With 20 MHz SPI Bus Interface NOT FOR NEW DESIGN FEATURES SUMMARY This device is now designated as “Not for New Design”. Please use the M25P05-A in all future designs (as described in application note AN1511). s 512 Kbit of Flash Memory s Figure 1. Packages Page Program (up to 128 Bytes) in 3 ms (typical) Sector Erase (256 Kbit) in 1 s (typical) Bulk Erase (512 Kbit) in 2 s (typical) 2.7 V to 3.6 V Single Supply Voltage SPI Bus Compatible Serial Interface 20 MHz Clock Rate (maximum) Deep Power-down Mode 1 µA (typical) Electronic Signature More than 100,000 Erase/Program Cycles per Sector More than 20 Year Data Retention s s s s s s s s 8 1 SO8 (MN) 150 mil width s February 2002 This is information on a produ [ ... ]

25P05 PDF Datasheet Download