A2V64S40 查看數據表（PDF） - Unspecified
零件编号
产品描述 (功能)
比赛名单
A2V64S40 Datasheet PDF : 38 Pages
| |||
A2V64S40CTP
64M Single Data Rate Synchronous DRAM
Function Truth Table
Current state /CS /RAS /CAS /WE
Idle
H
X
X
X
L
H
H
H
L
H
H
L
L
H
L
H
L
H
L
L
L
L
H
H
L
L
H
L
L
L
L
H
L
L
L
L
L
L
L
L
Row active
H
X
X
X
L
H
H
H
L
H
H
L
L
H
L
H
L
H
L
L
L
L
H
H
L
L
H
L
L
L
L
H
L
L
L
L
Read
H
X
X
X
L
H
H
H
L
H
H
L
L
H
L
H
L
H
L
L
L
L
H
H
L
L
H
L
L
L
L
H
L
L
L
L
Write
H
X
X
X
L
H
H
H
L
H
H
L
L
H
L
H
L
H
L
L
L
L
H
H
L
L
H
L
L
L
L
H
L
L
L
L
Read with auto H
X
X
X
precharge
L
H
H
H
L
H
H
L
L
H
L
H
L
H
L
L
L
L
H
H
L
L
H
L
L
L
L
H
L
L
L
L
Write with auto H
X
X
X
precharge
L
H
H
H
L
H
H
L
L
H
L
H
L
H
L
L
L
L
H
H
L
L
H
L
L
L
L
H
L
L
L
L
/Address
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
OC,BA1=H
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
Command
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS
EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
www.DataSheet.co.kr
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
Action
NOP
NOP
NOP
ILLEGAL
ILLEGAL
Row activating
NOP
Auto refresh
Mode register set
Extended mode register set
NOP
NOP
NOP
Begin read
Begin write
ILLEGAL
Precharge / Precharge all banks
ILLEGAL
ILLEGAL
Continue burst to end → Row active
Continue burst to end → Row active
Burst stop → Row active
Terminate burst,begin new read
Terminate burst,begin write
ILLEGAL
Terminate burst → Precharging
ILLEGAL
ILLEGAL
Continue burst to end → Write recovering
Continue burst to end → Write recovering
Burst stop → Row active
Terminate burst, start read : Determine AP
Terminate burst,new write : Determine AP
ILLEGAL
Terminate burst → Precharging
ILLEGAL
ILLEGAL
Continue burst to end → Precharging
Continue burst to end → Precharging
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end → Write recovering
Continue burst to end → Write recovering
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Notes
1
1
2
2
1
3
4
4,5
1
4,5
4
1
6
1
1
1
1
1
1
1
1
Revision 2.1
Page 10/36
Sep., 2008
Datasheet pdf - http://www.DataSheet4U.net/
Share Link: 