參數(shù)資料
型號(hào): EDD1232AABH-7A-E
廠商: ELPIDA MEMORY INC
元件分類: DRAM
英文描述: GT 3C 3#16S PIN PLUG
中文描述: 4M X 32 DDR DRAM, 0.75 ns, PBGA144
封裝: ROHS COMPLIANT, FBGA-144
文件頁(yè)數(shù): 16/50頁(yè)
文件大?。?/td> 621K
代理商: EDD1232AABH-7A-E
EDD1232AABH
Data Sheet E0533E50 (Ver. 5.0)
16
Function Truth Table
The following tables show the operations that are performed when each command is issued in each state of the
DDR SDRAM.
Current state
/CS
/RAS /CAS /WE
Address
Command
Operation
Next state
Precharging*
1
H
×
×
×
×
DESL
NOP
ldle
L
H
H
H
×
NOP
NOP
ldle
L
H
H
L
×
BST
ILLEGAL*
11
L
H
L
H
BA, CA, A8
READ/READA
ILLEGAL*
11
L
H
L
L
BA, CA, A8
WRIT/WRITA
ILLEGAL*
11
L
L
H
H
BA, RA
ACT
ILLEGAL*
11
L
L
H
L
BA, A8
PRE, PALL
NOP
ldle
L
L
L
×
×
ILLEGAL
Idle*
2
H
×
×
×
×
DESL
NOP
ldle
L
H
H
H
×
NOP
NOP
ldle
L
H
H
L
×
BST
ILLEGAL*
11
L
H
L
H
BA, CA, A8
READ/READA
ILLEGAL*
11
L
H
L
L
BA, CA, A8
WRIT/WRITA
ILLEGAL*
11
L
L
H
H
BA, RA
ACT
Activating
Active
L
L
H
L
BA, A8
PRE, PALL
NOP
ldle
L
L
L
H
×
REF, SELF
Refresh/
Self refresh*
12
Mode register set*
12
ldle/
Self refresh
L
L
L
L
MODE
MRS
ldle
Refresh
(auto-refresh)*
3
H
×
×
×
×
DESL
NOP
ldle
L
H
H
H
×
NOP
NOP
ldle
L
H
H
L
×
BST
ILLEGAL
L
H
L
×
×
ILLEGAL
L
L
×
×
×
ILLEGAL
Activating*
4
H
×
×
×
×
DESL
NOP
Active
L
H
H
H
×
NOP
NOP
Active
L
H
H
L
×
BST
ILLEGAL*
11
L
H
L
H
BA, CA, A8
READ/READA
ILLEGAL*
11
L
H
L
L
BA, CA, A8
WRIT/WRITA
ILLEGAL*
11
L
L
H
H
BA, RA
ACT
ILLEGAL*
11
L
L
H
L
BA, A8
PRE, PALL
ILLEGAL*
11
L
L
L
×
×
ILLEGAL
Active*
5
H
×
×
×
×
DESL
NOP
Active
L
H
H
H
×
NOP
NOP
Active
L
H
H
L
×
BST
ILLEGAL
Active
L
H
L
H
BA, CA, A8
READ/READA
Starting read operation Read/READA
L
H
L
L
BA, CA, A8
WRIT/WRITA
Starting write operation
Write
recovering/
precharging
L
L
H
H
BA, RA
ACT
ILLEGAL*
11
L
L
H
L
BA, A8
PRE, PALL
Pre-charge
Idle
L
L
L
×
×
ILLEGAL
相關(guān)PDF資料
PDF描述
EDD1232ABBH 128M bits DDR SDRAM
EDD1232ABBH-5C-E 128M bits DDR SDRAM
EDD2504AKTA-6B-E 256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-7A-E 256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA 256M bits DDR SDRAM (64M words x 4 bits)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EDD1232AAFA 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits DDR SDRAM (4M words x 32 bits)
EDD1232AAFA-6B-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits DDR SDRAM (4M words x 32 bits)
EDD1232AAFA-7A-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits DDR SDRAM (4M words x 32 bits)
EDD1232ABBH 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits DDR SDRAM
EDD1232ABBH-5C-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits DDR SDRAM