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W9412G6JH
AC Characteristics and Operating Condition, continued
SYM.
PARAMETER
MIN.
-4
MAX.
-5/-5I/-5K
MIN. MAX.
-6/-6I
MIN. MAX.
UNIT
NOTES
t WPRE
DQS Write Preamble Time
0.25
0.25
0.25
t WPST
DQS Write Postamble Time
0.4
0.6
0.4
0.6
0.4
0.6
t CK
11
t DQSS
Write Command
Transition
to
First
DQS
Latching
0.85
1.15
0.75
1.25
0.75
1.25
t IS
t IH
t IS
t IH
t IPW
Input Setup Time (fast slew rate)
Input Hold Time (fast slew rate)
Input Setup Time (slow slew rate)
Input Hold Time (slow slew rate)
Control & Address Input Pulse Width (for each
input)
0.6
0.6
0.7
0.7
2.2
0.6
0.6
0.7
0.7
2.2
0.75
0.75
0.8
0.8
2.2
nS
19, 21-23
19, 21-23
20-23
20-23
t HZ
Data-out
CLK, CLK
High-impedance
Time
from
0.7
0.7
0.7
t LZ
t T(SS)
t WTR
t XSNR
t XSRD
t REFi
t REFiA
t MRD
Data-out Low-impedance Time from CLK, CLK
SSTL Input Transition
Internal Write to Read Command Delay
Exit Self Refresh to non-Read Command
Exit Self Refresh to Read Command
Refresh Interval Time (4K/64mS)
Refresh Interval Time (4K/16mS)*
Mode Register Set Cycle Time
-0.7
0.5
2
72
200
8
0.7
1.5
15.6
-
-0.7
0.5
2
75
200
10
0.7
1.5
15.6
3.9
-0.7
0.5
1
75
200
12
0.7
1.5
15.6
-
t CK
nS
t CK
μS
μS
nS
17
17
* When -5K speed grade operation at 85°C < T A ≤ 105°C, increasing 4K Auto Refresh commands in frequency to a 16 mS
period.
10.7 AC Test Conditions
PARAMETER
Input High Voltage (AC)
Input Low Voltage (AC)
Input Reference Voltage
Termination Voltage
Differential Clock Input Reference Voltage
Input Difference Voltage. CLK and CLK Inputs (AC)
Output Timing Measurement Reference Voltage
SYMBOL
V IH
V IL
V REF
V TT
V R
V ID (AC)
V OTR
VALUE
V REF + 0.31
V REF - 0.31
0.5 x V DDQ
0.5 x V DDQ
V x (AC)
1.5
0.5 x V DDQ
UNIT
V
V
V
V
V
V
V
Publication Release Date: Jan. 14, 2014
- 27 -
Revision: A04
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