IS42LS16800A ICSI [Integrated Circuit Solution Inc], IS42LS16800A Datasheet - Page 14

• Manufacturer Part Number: IS42LS16800A
• Description: 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM
• Manufacturer: ICSI [Integrated Circuit Solution Inc]

Read with auto
Precharging
Precharge
Precharging
Write with Auto
Precharge
Precharging
Row Activating
IS42S81600A, IS42S16800A, IS42S32400A
IS42LS81600A, IS42LS16800A, IS42LS32400A
14
FUNCTIONAL TRUTH TABLE Continued:
Note: H=V
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
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
RAS
RAS CAS
×
IL
, V = Valid Data, BA= Bank Address, CA+Column Address, RA=Row Address, OC= Op-Code
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
CAS
×
×
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
Integrated Silicon Solution, Inc. — www.issi.com —
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
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/ WRITA
PRE/PALL
REF
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT I
PRE/PALL
REF
MRS/EMRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS/EMRS
Action
Continue burst to end -
Continue burst to end -
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end -Write
recovering with auto precharge
Continue burst to end -Write
recoveringwith auto precharge
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Nop Enter idle after tRP
Nop Enter idle after tRP
ILLEGAL
ILLEGAL
ILLEGAL
LLEGAL
Nop Enter idle after tRP
ILLEGAL
ILLEGAL
Nop Enter bank active after tRCD
Nop Enter bank active after tRCD
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ADVANCED INFORMATION Rev. 00A
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2,8)
(2)
ISSI
1-800-379-4774
06/01/02
®