IS43R16800A-6T ISSI [Integrated Silicon Solution, Inc], IS43R16800A-6T Datasheet - Page 33
IS43R16800A-6T
Manufacturer Part Number
IS43R16800A-6T
Description
8Meg x 16 128-MBIT DDR SDRAM
Manufacturer
ISSI [Integrated Silicon Solution, Inc]
Datasheet
1.IS43R16800A-6T.pdf
(47 pages)
- Current page: 33 of 47
- Download datasheet (2Mb)
IS43R16800A-6
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00A
04/04/06
A Write command to the consecutive Read command interval: To interrupt the write operation
1. Same
2. Same
3. Different
Note: 1. Precharge must be preceded to read command. Therefore read command can not interrupt the write
WRITE to READ Command Interval (Same bank, same ROW address)
Command
Destination row of the consecutive read
command
Bank
address
DQS
/CK
DM
DQ
CK
operation in this case.
Row address State
Same
Different
Any
WRIT
t0
1 cycle
READ
ACTIVE
—
ACTIVE
IDLE
in0
Data masked
t1
in1
CL=2
[WRITE to READ delay = 1 clock cycle]
in2
t2
Operation
DM must be input 1 cycle prior to the read command input to prevent from being
written invalid data. In case, the read command is input in the next cycle of the
write command, DM is not necessary.
—*
DM must be input 1 cycle prior to the read command input to prevent from being
written invalid data. In case, the read command is input in the next cycle of the
write command, DM is not necessary.
—*
1
1
t3
out0 out1 out2 out3
t4
t5
NOP
t6
High-Z
High-Z
t7
t8
BL = 4
CL= 2
ISSI
33
®
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