is42s16128 Integrated Silicon Solution, Inc., is42s16128 Datasheet - Page 64

• Manufacturer Part Number: is42s16128
• Description: 128k Words Bits Banks Sdram
• Manufacturer: Integrated Silicon Solution, Inc.

Write Cycle / Ping-Pong Operation (Bank Switching)
64
IS42S16128
A0-A7
DQM
CKE
RAS
CAS
CAS latency = 3, burst length = 4
CLK
WE
CS
I/O
A8
A9
t
CKS
t
CS
T0
t
t
t
t
t
t
t
CS
CS
CS
AS
AS
t
t
AS
CKA
CH
CK
<
BANK 0
ACT 0
ROW
ROW
T1
(BANK 0 TO 1)
t
CHI
>
(BANK 0)
(BANK 0)
(BANK 0)
t
t
t
t
t
RCD
t
t
t
RRD
t
t
AH
AH
RAS
CH
CH
CH
AH
RC
T2
t
CL
T3
t
t
DS
CS
<
AUTO PRE
<
COLUMN
NO PRE
WRITA 0
BANK 0
WRIT 0
T4
D
IN
0m
t
DH
>
>
t
DS
<
BANK 1
ROW
ACT 1
ROW
D
T5
IN
0m+1
t
>
DH
(BANK 1)
(BANK 1)
(BANK 1)
t
t
RAS
t
RCD
RC
t
DS
D
T6
IN
0m+2
t
DH
Integrated Silicon Solution, Inc. — 1-800-379-4774
t
DS
D
T7
IN
0m+3
t
DH
(BANK 0)
t
t
DPL
DS
<
AUTO PRE
<
COLUMN
WRITA 1
NO PRE
BANK 1
WRIT 1
T8
D
IN
t
1m
DH
>
>
t
DS
BANK 0 OR 1
<
BANK 0
D
PRE 0
T9
IN
1m+1
t
DH
>
(BANK 0)
t
RP
t
DS
D
T10
IN
1m+2
t
DH
t
DS
D
T11
IN
1m+3
t
DH
ISSI
t
CH
<
BANK 1
BANK 0
ACT 0
T12
ROW
ROW
Undefined
Don't Care
>
t
t
t
t
DPL
RCD
RAS
03/13/00
RC
Rev. A
®