IS42S16100F-7BLI ISSI, Integrated Silicon Solution Inc, IS42S16100F-7BLI Datasheet - Page 32

• Manufacturer Part Number: IS42S16100F-7BLI
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S16100F-7BLI

• Lead Free Status / Rohs Status: Compliant

IS42/45S16100F, IS42VS16100F
32
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 two clock periods after the last
burst data input.
CAS latency = 2, burstlength = 4
CAS latency = 3, burstlength = 4
COMMAND
COMMAND
CLK
CLK
DQ
DQ
dal
WRITE WITH AUTO-PRECHARGE
WRITE WITH AUTO-PRECHARGE
) is t
rp
WRITE A0
WRITE A0
D
D
plus two CLK periods. 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
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.
Integrated Silicon Solution, Inc. — www.issi.com
CAS Latency
dal
t
dal
.
PRECHARGE START
PRECHARGE START
t
t
t
t
DAL
DAL
RP
RP
2CLK
+t
3
rp
2CLK
+t
ACT 0
ACT 0
2
rp
06/03/2010
Rev. 00C