參數(shù)資料
型號(hào): 97SD3232
廠商: Maxwell Technologies, Inc
英文描述: 1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
中文描述: 1千兆內(nèi)存8梅格× 32位× 4,銀行
文件頁(yè)數(shù): 4/39頁(yè)
文件大?。?/td> 764K
代理商: 97SD3232
97SD3232
M
em
o
ry
12
All data sheets are subject to change without notice
2005 Maxwell Technologies
All rights reserved.
1 Gb (8-Meg X 32-Bit X 4-Banks) SDRAM
01.11.05 Rev 2
Function Truth Table
The following function table shows the operations that are performed when each command is issued in each
mode of the SDRAM.
The following table assumes that CKE is High.
CURRENT STATE
CS
RAS
CAS
WE
ADDRESS
COMMAND
OPERATION
Precharge
H
x
DESL
Enter IDLE after t
RP
L
H
x
NOP
Enter IDLE after t
RP
L
H
L
H
BA, CA, A10
READ/READ A
ILLEGAL1
L
H
L
BA, CA, A10
WRIT/WRIT A
ILLEGAL1
L
H
BA, RA
ACTV
ILLEGAL1
L
H
L
BA, A10
PRE, PALL
NOP2
L
H
x
REF, SELF
ILLEGAL
L
MODE
MRS
ILLEGAL
Idle
H
x
DESL
NOP
LH
H
x
NOP
L
H
L
H
BA, CA, A10
READ/READ A
ILLEGAL3
L
H
L
BA, CA, A10
WRIT/WRIT A
ILLEGAL3
L
H
BA, RA
ACTV
Bank and row active
L
H
L
BA, A10
PRE, PALL
NOP
L
H
x
REF, SELF
Refresh
L
MODE
MRS
Mode register set
Row active
H
x
DESL
NOP
LH
H
x
NOP
L
H
L
H
BA, CA, A10
READ/READ A
Begin read
L
H
L
BA, CA, A10
WRIT/WRIT A
Begin write
L
H
BA, RA
ACTV
Other bank active
ILLEGAL on same bank4
L
H
L
BA, A10
PRE, PALL
Precharge
L
H
x
REF, SELF
ILLEGAL
L
MODE
MRS
ILLEGAL
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97SD3232RPME 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
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97SD3232RPMK 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:1 Gb SDRAM 8-Meg X 32 Bit X 4-Banks
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