W3E16M72S-XBX PDF 데이터시트 검색

White Electronic Designs 16Mx72 Registered DDR SDRAM FEATURES Registered for enhanced performance of bus speeds of 200, 225, and 250 MH- Package: 219 Plastic Ball Grid Array (PBGA), 32 x 25mm 2.5V ±0.2V core power supply 2.5V I, O (SSTL_2 compatible) Differential clock inputs (CK and CK#) Commands entered on each positive CK edge Internal pipelined double-data-rate (DDR) architecture; two data accesses per clock cycle Programmable Burst length: 2,4 or 8 Bidirectional data strobe (DQS) transmit