參數(shù)資料
型號: EDD2508AETA-6B-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
文件頁數(shù): 19/52頁
文件大?。?/td> 492K
代理商: EDD2508AETA-6B-E
EDD2508AETA, EDD2516AETA
Data Sheet E0859E50 (Ver. 5.0)
19
Current state
/CS
/RAS
/CAS /WE
Address
Command
Operation
Next state
Read*
6
H
×
×
×
×
DESL
NOP
Active
L
H
H
H
×
NOP
NOP
Active
L
H
H
L
×
BST
BST
Active
L
H
L
H
BA, CA, A10
READ/READA
Interrupting burst read
operation to
start new read
ILLEGAL*
13
Active
L
H
L
L
BA, CA, A10
WRIT/WRITA
L
L
H
H
BA, RA
ACT
ILLEGAL*
11
L
L
H
L
BA, A10
PRE, PALL
Interrupting burst
read operation to
start pre-charge
Precharging
Read with auto-pre-
charge*
L
L
L
×
×
ILLEGAL
H
×
×
×
×
DESL
NOP
Precharging
L
H
H
H
×
NOP
NOP
Precharging
L
H
H
L
×
BST
ILLEGAL
L
H
L
H
BA, CA, A10
READ/READA
ILLEGAL*
14
L
H
L
L
BA, CA, A10
WRIT/WRITA
ILLEGAL*
14
L
L
H
H
BA, RA
ACT
ILLEGAL*
11, 14
L
L
H
L
BA, A10
PRE, PALL
ILLEGAL*
11, 14
L
L
L
×
×
ILLEGAL
Write*
8
H
×
×
×
×
DESL
NOP
Write
recovering
Write
recovering
L
H
H
H
×
NOP
NOP
L
H
H
L
×
BST
ILLEGAL
L
H
L
H
BA, CA, A10
READ/READA
Interrupting burst write
operation to
start read operation.
Interrupting burst write
operation to
start new write
operation.
ILLEGAL*
11
Read/ReadA
L
H
L
L
BA, CA, A10
WRIT/WRITA
Write/WriteA
L
L
H
H
BA, RA
ACT
L
L
H
L
BA, A10
PRE, PALL
Interrupting write
operation to start pre-
charge.
Idle
L
L
L
×
×
ILLEGAL
Write recovering*
9
H
×
×
×
×
DESL
NOP
Active
L
H
H
H
×
NOP
NOP
Active
L
H
H
L
×
BST
ILLEGAL
L
H
L
H
BA, CA, A10
READ/READA
Starting read
operation.
Starting new write
operation.
ILLEGAL*
11
Read/ReadA
L
H
L
L
BA, CA, A10
WRIT/WRITA
Write/WriteA
L
L
H
H
BA, RA
ACT
L
L
H
L
BA, A10
PRE/PALL
ILLEGAL*
11
L
L
L
×
×
ILLEGAL
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EDD2508AETA-7A-E 256M bits DDR SDRAM
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