This part is a kind of semiconductor called AMMC0XXA.
Function of this product has 2/ 4/ or 8 Megabyte 5.0 Volt-only Flash Miniature Card.
Manufacturers : Advanced Micro Devices
Image and pinout :

Some of the text within the PDF file :
PRELIMINARY AmMC0XXA 2, 4, or 8 Megabyte 5.0 Volt-only Flash Miniature Card DISTINCTIVE CHARACTERISTICS s 2, 4, or 8 Mbytes of addressable Flash memory s 5.0 Volt-only, single power supply operation Write and read voltage: 5.0 V ± 10% No additional supply current required for VPP s Fast access time 100 or 150 ns access time s CMOS low power consumption Typical active read current: 70 mA (word mode) Typical active erase/write current: 100 mA (word mode) Typical standby current: 10 µA (8 Mbyte card) s High write endurance Guaranteed minimum 100,000 write/erase cycles per card More than 1,000,000 cycles per card typical s Uniform sector architecture 64K byte individually useable sectors Erase Suspend/Resume increases system level performance BUSY [ ... ]
AMMC0XXA PDF Datasheet Download
