IS42S16100-10TI ISSI [Integrated Silicon Solution, Inc], IS42S16100-10TI Datasheet - Page 26
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IS42S16100-10TI
Manufacturer Part Number
IS42S16100-10TI
Description
512K Words x 16 Bits x 2 Banks (16-MBIT) SYNCHRONOUS DYNAMIC RAM
Manufacturer
ISSI [Integrated Silicon Solution, Inc]
Datasheet
1.IS42S16100-10TI.pdf
(78 pages)
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26
IS42S16100
Write With Auto-Precharge
The write with auto-precharge command first executes a
burst write operation and then puts the selected bank in the
precharged state automatically. After the precharge
completes the bank goes to the idle state. Thus this
command performs a write command and a precharge
command in a single operation.
During this operation, the delay period (t
last burst data input and the completion of the precharge
operation differs depending on the CAS latency setting.
The delay (t
precharge operation starts one clock period after the last
burst data input.
CAS latency = 2, burstlength = 4
CAS latency = 3, burstlength = 4
COMMAND
COMMAND
CLK
CLK
DAL
I/O
I/O
WRITE WITH AUTO-PRECHARGE
WRITE WITH AUTO-PRECHARGE
) is t
RP
WRITE A0
WRITE A0
D
D
plus one CLK period. That is, the
IN
IN
(BANK 0)
(BANK 0)
0
0
D
D
IN
IN
1
1
DAL
) between the
D
D
IN
IN
2
2
Integrated Silicon Solution, Inc. — www.issi.com —
D
D
IN
IN
3
3
Therefore, the selected bank can be made active after a
delay of t
The selected bank must be set to the active state before
executing this command.
The auto-precharge function is invalid if the burst length is
set to full page.
CAS
CAS
CAS
CAS
CAS Latency
PRECHARGE START
PRECHARGE START
DAL
t
DAL
t
t
.
DAL
RP
t
t
DAL
ACT 0
RP
1CLK
+t
3
RP
ISSI
1-800-379-4774
1CLK
+t
ACT 0
2
RP
11/01/01
Rev. C
®
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