參數(shù)資料
型號(hào)： EDD2508AETA-5B-E
廠商： ELPIDA MEMORY INC
元件分類： DRAM
英文描述： 256M bits DDR SDRAM
中文描述： 32M X 8 DDR DRAM, 0.7 ns, PDSO66
封裝： ROHS COMPLIANT, PLASTIC, TSOP2-66
文件頁(yè)數(shù)： 30/52頁(yè)
文件大?。?/td> 492K
代理商： EDD2508AETA-5B-E
EDD2508AETA, EDD2516AETA
Data Sheet E0859E50 (Ver. 5.0)
30
Auto Precharge
Read with auto-precharge
The precharge is automatically performed after completing a read operation. The precharge starts tRPD (BL/2)
cycle after READA command input.
tRAP specification for READA allows a read command with auto precharge to be
issued to a bank that has been activated (opened) but has not yet satisfied the tRAS (min) specification. A column
command to the other active bank can be issued the next cycle after the last data output. Read with auto-precharge
command does not limit row commands execution for other bank. Refer to ‘Function truth table and related
note(Notes.*14).
out0
out1
out2
out3
CK
/CK
DQ
Command
tRP (min)
tRAP (min) = tRCD (min)
ACT
Note: Internal auto-precharge starts at the timing indicated by " ".
NOP
BL/2 cycles
READA
ACT
DQS
tAC,tDQSCK
tRPD
Read with auto-precharge
Write with auto-precharge
The precharge is automatically performed after completing a burst write operation. The precharge operation is
started (1 + BL/ 2 + tWR) cycles after WRITA command issued. A column command to the other banks can be
issued the next cycle after the internal precharge command issued. Write with auto-precharge command does not
limit row commands execution for other bank. Refer to the ‘Read with Auto-Precharge Enabled, Write with Auto-
Precharge Enabled’ section. Refer to ‘Function truth table and related note(Notes.*14)‘.
in1
in2
in3
in4
CK
/CK
DQ
Command
DM
tRAS (min)
tRCD (min)
tRP
DQS
ACT
WRITA
ACT
Note: Internal auto-precharge starts at the timing indicated by " ".
BL = 4
NOP
NOP
1 + BL/2 + tWR cycles
Burst Write (BL = 4)
相關(guān)PDF資料
PDF描述
EDD2508AETA-5C-E 256M bits DDR SDRAM
EDD2508AETA-6B-E 256M bits DDR SDRAM
EDD2508AETA-7A-E 256M bits DDR SDRAM
EDD2508AETA-7B-E 256M bits DDR SDRAM
EDD2516AETA 256M bits DDR SDRAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EDD2508AETA-5C-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
EDD2508AETA-6B-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
EDD2508AETA-7A-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
EDD2508AETA-7B-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
EDD2508AJTA 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
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