This part is a kind of semiconductor called H9DA4GH4JJAMCR.

Function of this product has NAND 4Gb(x16) / mobile DDR 4Gb(x32 2CS).

Manufacturers : Hynix

Image and pinout :

Some of the text within the PDF file :

MCP Specification 4Gb (256Mb x16) NAND Flash + 4Gb (64Mb x32 2/CS 2CKE) mobile DDR http://www.net/ This document is a general product description and is subject to change without notice. Hynix does not assume any responsibility for use of circuits described. No patent licenses are implied. Rev 1.1 / Mar. 2011 1 datasheet pdf - http://www.net/ H9DA4GH4JJAMCR series NAND 4Gb(x16) / mobile DDR 4Gb(x32 2CS) Document Title MCP 4Gb (256Mb x16) NAND Flash / 4Gb (2*64Mb x32 2CS 2CKE) DDR Revision History Revision No. 0.1 1.0 1.1 History Initial Draft - 4Gb NAND Flash D-Die - 4Gb mobile DDR (2 x 2Gb Mobile DDDR A-Die) First version Editorial Change Draft Date Oct. 2010 Nov. 2010 Mar. 2011 Remark Preliminary http://www.net/ Rev 1.1 / Mar. 2010 2 datashe [ ... ]

H9DA4GH4JJAMCR PDF Datasheet Download