is42s16800d Integrated Silicon Solution, Inc., is42s16800d Datasheet - Page 11

• Manufacturer Part Number: is42s16800d
• Description: 16meg X 8, 8meg X16 128-mbit Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S81600D,
Note: H=V
Current State
Read with auto
Precharging
Write with Auto
Precharge
Precharging
Row Activating
Integrated Silicon Solution, Inc. — www.issi.com
Rev. D
06/18/07
FUNCTIONAL TRUTH TABLE Continued:
IH
, L=V
IL
x= V
CS
CS
CS
CS
CS
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
IH
or V
IS42S16800D
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
×
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
RAS
RAS
RAS CAS
RAS
RAS
×
×
×
IL
, V = Valid Data, BA= Bank Address, CA+Column Address, RA=Row Address, OC= Op-Code
CAS
CAS
CAS
CAS
×
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
×
H
H
L
L
H
H
L
L
×
H
H
L
L
H
H
L
L
×
×
H
L
H
L
H
L
H
L
×
H
L
H
L
H
L
H
L
×
H
L
H
L
H
L
H
L
×
H
L
H
L
H
L
H
L
WE
WE
WE
WE
WE
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
NOP
BST
READ/READA
WRIT/ WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/ WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
Action
Continue burst to end, Precharge
Continue burst to end, Precharge
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end, Write
recovering with auto precharge
Continue burst to end, Write
recovering with auto precharge
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Nop, Enter idle after tRP
Nop, Enter idle after tRP
Nop, Enter idle after tRP
ILLEGAL
ILLEGAL
ILLEGAL
Nop Enter idle after tRP
ILLEGAL
ILLEGAL
Nop, Enter bank active after tRCD
Nop, Enter bank active after tRCD
Nop, Enter bank active after tRCD
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
(11)
(3)
(11)
(11)
(3)
(11)
(11)
(3)
(3)
(3)
(3)
(3,9)
(3)
(3,11)
(3,11)
11