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eorex
EM42AM3284LBA
Jul. 2006
www.eorex.com
AC Operating Test Conditions
(VDD=1.8V ± 0.1V, TA=0°C ~70°C)
Item
Conditions
Output Reference Level
0.9V/0.9V
Output Load
See diagram as below
Input Signal Level
1.6V/0.2V
Transition Time of Input Signals
0.5ns
Input Reference Level
0.9V
AC Operating Test Characteristics
(VDD=1.8V±0.1V, TA=0°C ~70°C)
-7.5
Symbol
Parameter
Min.
Max.
Units
tDQCK
DQ output access from CLK,/CLK
2
6
ns
tDQSCK
DQS output access from CLK,/CLK
2
6
ns
tCL,tCH
CL low/high level width
0.45
0.55
tCK
tCK
Clock Cycle Time
7.5
ns
tDH,tDS
DQ and DM hold/setup time
0.8
ns
tDIPW
DQ and DM input pulse width for
each input
1.75
ns
tHZ,tLZ
Data out high/low impedance time
from CLK,/CLK
1
6
ns
tDQSQ
DQS-DQ skew for associated DQ
signal
0.6
ns
tDQSS
Write command to first latching DQS
transition
0.75
1.25
tCK
tDSL,tDSH
DQS input valid window
0.2
tCK
tMRD
Mode Register Set command cycle
time
2
tCK
tWPRES
Write Preamble setup time
0
ns
tWPST
Write Preamble
0.4
0.6
tCK
tIH,tIS
Address/control input hold/setup
time
1.3
ns
tRPRE
Read Preamble
0.9
1.1
tCK
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