參數(shù)資料
型號: EDE5108AJBG-8E-E
廠商: ELPIDA MEMORY INC
元件分類: DRAM
英文描述: 512M bits DDR2 SDRAM
中文描述: 64M X 8 DDR DRAM, 0.4 ns, PBGA60
封裝: ROHS COMPLIANT, FBGA-60
文件頁數(shù): 71/77頁
文件大?。?/td> 589K
代理商: EDE5108AJBG-8E-E
EDE5108AJBG, EDE5116AJBG
Preliminary Data Sheet E1044E20 (Ver. 2.0)
71
Asynchronous CKE Low Event
DRAM requires CKE to be maintained high for all valid operations as defined in this data sheet. If CKE
asynchronously drops low during any valid operation DRAM is not guaranteed to preserve the contents of array. If
this event occurs, memory controller must satisfy DRAM timing specification tDELAY before turning off the clocks.
Stable clocks must exist at the input of DRAM before CKE is raised high again. DRAM must be fully re-initialized
(steps 4 through 13) as described in initialization sequence. DRAM is ready for normal operation after the
initialization sequence. See AC Characteristics table for tDELAY specification
tCK
CK
/CK
tDELAY
CKE
CKE asynchronously
drops low
Clocks can be
turned off after
this point
Stable clocks
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