IC42S16800 ICSI [Integrated Circuit Solution Inc], IC42S16800 Datasheet - Page 14

• Manufacturer Part Number: IC42S16800
• Description: 4(2)M x 8(16) Bits x 4 Banks (128-MBIT) SYNCHRONOUS DYNAMIC RAM
• Manufacturer: ICSI [Integrated Circuit Solution Inc]

IC42S81600/IC42S81600L
IC42S16800/IC42S16800L
OPERATION COMMAND TABLE
14
Current State Command
Write
recovering
with auto
precharge
Auto
Refreshing
Mode
register
setting
Notes:
1. All entries assume that CKE was active (High level) during the preceding clock cycle.
2. If both banks are idle, and CKE is inactive (Low level), the device will enter Power downmode. All input buffers except CKE
3. Illegal to bank in specified states; Function may be legal in the bank indicated by Bank Address(BA), depending on the
4. If both banks are idle, and CKE is inactive (Low level), the device will enter Self refresh mode. All input buffers except CKE
5. Illegal if t
6. Illegal if t
7. Must satisfy burst interrupt condition.
8. Must satisfy bus contention, bus turn around, and/or write recovery requirements.
9. Must mask preceding data which don’t satisfy t
10. Illegal if t
11. Illegal for single bank, but legal for other banks in multi-bank devices.
will be disabled.
state of that bank.
will be disabled.
RCD
RAS
RRD
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP/BST
READ/WRIT
ACT/PRE/PALL
REF/SELF/MRS
DESL
NOP
BST
READ/WRIT
ACT/PRE/PALL/
REF/SELF/MRS
is not satisfied.
is not satisfied.
is not satisfied.
Operation
Illegal
Illegal
Illegal
Illegal
Illegal
Nop
Nop
Nop
Illegal
Illegal
Illegal
Illegal
Illegal
Nop Enter idle after t
Nop Enter idle after t
Illegal
Nop
Nop
Illegal
(3 ,8, 11)
(3,11)
(3, 11)
(3, 11)
(continue)
Enter precharge after t
Enter precharge after t
Enter precharge after t
Enter idle after 2 Clocks
Enter idle after 2 Clocks
DPL
RC
RC
.
DPL
DPL
DPL
CS
CS
CS
CS
CS
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Integrated Circuit Solution Inc.
RAS
RAS
RAS
RAS
RAS
H
H
H
H
H
H
H
H
H
X
L
L
L
L
X
L
L
X
L
CAS
CAS
CAS
CAS
CAS
H
H
H
H
H
H
H
H
X
L
L
L
L
X
L
L
X
L
X
WE
WE
WE
WE
WE
X
H
H
H
H
X
X
X
X
X
X
H
X
X
L
L
L
L
L
DR023-0E 6/11/2004
Address
X
X
X
BA, CA, A10
BA, CA, A10
BR, RA
BA, A10
X
Op-Code
X
X
X
X
X
X
X
X
X
X