128Mb Synchronous DRAM based on 2M x 4Bank x16 I/O.
Hynix Semiconductor
HY57V281620EST - Synchronous DRAM Memory 128Mbit (8M x 16bit)
128Mb Synchronous DRAM based on 2M x 4Bank x16 I/O Document Title 4Bank x 2M x 16bits Synchronous DRAM Revision History Revision No. History 1.0 .