IS42S16800A 查看數據表（PDF） - Integrated Silicon Solution
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IS42S16800A Datasheet PDF : 61 Pages
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IS42S81600A, IS42S16800A, IS42S32400A
ISSI ®
FUNCTIONAL TRUTH TABLE Continued:
Read with auto
Precharging
Precharge
Precharging
Write with Auto
Precharge
Precharging
Row Activating
CS RAS CAS WE
H× ×
×
LH
H
H
LH
H
L
LH
L
H
LH
L
L
LL
H
H
LL
H
L
LL
L
H
LL
L
L
H×
××
LH
H
H
LH
H
L
LH
L
H
LH
L
L
LL
H
H
LL
H
L
LL
L
H
LL
L
L
H×
×
×
LH
H
H
LH
H
L
LH
L
H
LH
L
L
LL
H
H
LL
H
L
LL
L
H
LL
L
L
H× ×
×
LH
H
H
LH
H
L
LH
L
H
LH
L
L
LL
H
H
LL
H
L
LL
L
H
LL
L
L
Address
×
x
×
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
×
OC, BA
×
×
×
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
×
OC, BA
×
×
×
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
×
OC, BA
×
×
×
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
×
OC, BA
Command
DESL
Action
Continue burst to end -
NOP
Continue burst to end -
BST
READ/READA
WRIT/ WRITA
ACT
PRE/PALL
REF
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/ WRITA
ACT
PRE/PALL
REF
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS/EMRS
ILLEGAL
ILLEGAL (2)
ILLEGAL (2)
ILLEGAL (2)
ILLEGAL (2)
ILLEGAL
ILLEGAL
Continue burst to end -Write
recovering with auto precharge
Continue burst to end -Write
recoveringwith auto precharge
ILLEGAL
ILLEGAL(2)
ILLEGAL (2)
ILLEGAL (2)
ILLEGAL (2)
ILLEGAL
ILLEGAL
Nop Enter idle after tRP
Nop Enter idle after tRP
ILLEGAL
ILLEGAL (2)
ILLEGAL (2)
ILLEGAL(2)
Nop Enter idle after tRP
ILLEGAL
ILLEGAL
Nop Enter bank active after tRCD
Nop Enter bank active after tRCD
ILLEGAL
ILLEGAL (2)
ILLEGAL (2)
ILLEGAL (2,8)
ILLEGAL (2)
ILLEGAL
ILLEGAL
Note: H=VIH, L=VIL x= VIH or VIL, V = Valid Data, BA= Bank Address, CA+Column Address, RA=Row Address, OC= Op-Code
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
11
PRELIMINARYINFORMATION Rev. 00C
01/20/05
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