This part is a kind of semiconductor called MX25L1605ZM.

Function of this product has 16M-BIT [x 1] CMOS SERIAL eLiteFlashTM MEMORY.

Manufacturers : Macronix International

Image and pinout :

Some of the text within the PDF file :

MX25L1605ZM Macronix NBit TM Memory Family FEATURES 16M-BIT [x 1] CMOS SERIAL eLiteFlashTM MEMORY - Automatically erases and verifies data at selected sector - Automatically programs and verifies data at selected page by an internal algorithm that automatically times the program pulse widths (Any page to be programed should have page in the erased state first) • Status Register Feature • Electronic Identification - JEDEC 2-byte Device ID - RES command, 1-byte Device ID - REMS command, ADD=00H will output the manufacturer's ID first and ADD=01H will output device ID first • Additional 4Kb sector independent from main memory for parameter storage to eliminate EEPROM from system HARDWARE FEATURES • SCLK Input GENERAL • Serial Peripheral Interface (SPI) compatible -- Mode 0 and Mod [ ... ]

MX25L1605ZM PDF Datasheet Download