Hynix Semiconductor HY57V658020B - 4 Banks x 2M x 8Bit Synchronous DRAM HY57V658020B 4 Banks x 2M x 8Bit Synchronous DRAM DESCRIPTION The Hynix HY57V658020B is a 67,108,864-bit CMOS Synchronous DRAM, ideally suited for the Rating: 1 ★ (2 votes)