參數(shù)資料
型號(hào)： EDD2504AKTA-7B
廠商： ELPIDA MEMORY INC
元件分類： DRAM
英文描述： 256M bits DDR SDRAM (64M words x 4 bits)
中文描述： 64M X 4 DDR DRAM, 0.75 ns, PDSO66
封裝： PLASTIC, TSOP2-66
文件頁(yè)數(shù)： 32/49頁(yè)
文件大?。?/td> 441K
代理商： EDD2504AKTA-7B
EDD2504AKTA
Data Sheet E0457E10 (Ver. 1.0)
32
A Write command to the consecutive Read command interval: To complete the burst operation
Destination row of the consecutive read
command
Bank
address
To complete the burst operation, the consecutive read command should be
performed tWRD (= BL/ 2 + 2) after the write command.
Precharge the bank tWPD after the preceding write command. tRP after the
precharge command, issue the ACT command. tRCD after the ACT command, the
consecutive read command can be issued. See ‘A read command to the
consecutive precharge interval’ section.
To complete a burst operation, the consecutive read command should be
performed tWRD (= BL/ 2 + 2) after the write command.
Precharge the bank independently of the preceding write operation. tRP after the
precharge command, issue the ACT command. tRCD after the ACT command, the
consecutive read command can be issued.
Row address State
Operation
1. Same
Same
ACTIVE
2. Same
Different
—
3. Different
Any
ACTIVE
IDLE
in0
in1
in2
in3
out2
out0
out1
CK
/CK
DM
DQ
Command
t1
t0
t2
t3
t4
t5
t6
BL = 4
CL = 2
tWRD (min)
tWTR*
DQS
INPUT
OUTPUT
BL/2 + 2 cycle
WRIT
NOP
NOP
READ
Note: tWTR is referenced from the first positive CK edge after the last desired data in pair tWTR.
WRITE to READ Command Interval
相關(guān)PDF資料
PDF描述
EDD2504AKTA-7B-E 256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-E 256M bits DDR SDRAM (64M words x 4 bits)
EDD2508AKTA-5-E 256M bits DDR SDRAM (32M words x 8 bits, DDR400)
EDD2508AKTA-5B-E 256M bits DDR SDRAM (32M words x 8 bits, DDR400)
EDD2508AKTA-5C-E 256M bits DDR SDRAM (32M words x 8 bits, DDR400)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EDD2504AKTA-7B-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM (64M words x 4 bits)
EDD2508AETA 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
EDD2508AETA-5B-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
EDD2508AETA-5C-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM
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