is42s32160c Integrated Silicon Solution, Inc., is42s32160c Datasheet - Page 9

• Manufacturer Part Number: is42s32160c
• Description: 16mx32 512mb Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S32160C
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. B
01/22/09
CLK
D Q M
COMMAND
DQ’s
A read burst without the auto precharge function may be interrupted by a BankPrecharge/
PrechargeAll command to the same bank.The Figure "Read to Precharge" shows the optimum
time that BankPrecharge/PrechargeAll command is issued in different CAS# latency.
CLK
DQM
COMMAND
CAS# latency=2
t CK2 , DQ’s
CLK
DQM
COMMAND
CAS# latency=2
: "H" or "L"
tCK2, DQs
: "H" or "L"
: "H" or "L"
tCK2, DQs
NOP
T0
T0
NOP
Read to Write Interval (Burst Length = 4,CAS# Latency =3)
Read to Write Interval (Burst Length = 4,CAS# Latency =2)
T0
NOP
Read to Write Interval (Burst Length = 4,CAS# Latency =2)
READ A
T1
T1
NOP
T1
NOP
READ A
T2
NOP
ACTIVAT E
T2
BANKA
T2
T3
T3
NOP
NOP
T3
NOP
DOUT A
NOP
T4
T4
READ A
NOP
T4
1 Clk Interval
the Write Command
Must be Hi-Z before
WRITEB
NOP
T5
T5
DIN B 0
WRITEA
T5
DIN A 0
WRITE B
DIN B 1
T6
DINB 0
T6
NOP
DIN A 1
NOP
T6
NOP
T7
T7
DINB 1
NOP
DIN B 2
T7
NOP
DIN A 2
NOP
NOP
T8
DINB 2
T8
DIN B 3
NOP
T8
DIN A 3
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