eorex
EM42BM3284LBA
AC Operating Test Characteristics
(VDD=1.8V±0.1V, TA=0°C ~70°C)
-6
-7.5
Symbol
Parameter
Units
Min.
2
Max.
5
Min.
2
Max.
6
tDQCK
DQ output access from CLK,/CLK
ns
ns
tCK
tDQSCK DQS output access from CLK,/CLK
tCL,tCH CL low/high level width
2
5
2
6
0.45
0.55
0.45
0.55
tCK
Clock Cycle Time
6
7.5
ns
tDH,tDS DQ and DM hold/setup time
0.6
0.8
ns
ns
DQ and DM input pulse width for
tDIPW
1.75
1.75
each input
Data out high/low impedance time
from CLK,/CLK
DQS-DQ skew for associated DQ
signal
Write command to first latching DQS
transition
tHZ,tLZ
1
5.5
0.5
1
6
ns
ns
tCK
tCK
tCK
tDQSQ
0.6
1.25
tDQSS
0.75
0.35
2
1.25
0.75
0.35
2
tDSL,tDS
DQS input valid window
H
Mode Register Set command cycle
tMRD
time
tWPRES Write Preamble setup time
0
0
ns
tCK
tCK
tWPRE
tWPST
tIH,tIS
tRPRE
Write Preamble
Write Postamble
0.25
0.4
0.25
0.4
0.6
1.1
0.6
1.1
Address/control input hold/setup
time
1.1
1.3
ns
Read Preamble
0.9
0.9
tCK
Feb. 2009
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EOREX [ EOREX CORPORATION ]
