器件名称: W3E16M72S-250BI
功能描述: 16Mx72 DDR SDRAM
文件大小: 840.72KB 共17页
简 介:White Electronic Designs
16Mx72 DDR SDRAM
FEATURES DDR SDRAM Rate = 200, 250, 266 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 (CLK and CLK#) Commands entered on each positive CLK 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) transmitted/received with data, i.e., source-synchronous data capture (one per byte) DQS edge-aligned with data for READs; centeraligned with data for WRITEs DLL to align DQ and DQS transitions with CLK Four internal banks for concurrent operation Two data mask (DM) pins for masking write data Programmable IOL/IOH option Auto precharge option Auto Refresh and Self Refresh Modes Commercial, Industrial and Military Temperature Ranges Organized as 16M x 72 Weight: W3E16M72S-XBX – 3.55 grams typical
* This product is subject to change without notice..
W3E16M72S-XBX
BENEFITS
40% SPACE SAVINGS Reduced part count Reduced I/O count 34% I/O Reduction Reduced trace lengths for lower parasitic capacitance Suitable for hi-reliability applications Laminate interposer for optimum TCE match Upgradeable to 32M x 72 density (W3E32M72S-XBX)
GENERAL DESCRIPTION
The 128MByte (1Gb) DDR SDRAM is a high-speed CMOS, dynamic random-access, memory using 5 chips containing 268,435,456 bits. Each chip is internally congured as a quad-bank DRAM. Each of the chip’s 67,108……
