m393t1k66aza Samsung Semiconductor, Inc., m393t1k66aza Datasheet - Page 10

• Manufacturer Part Number: m393t1k66aza
• Description: 240pin Registered Module Based On 2gb A-die 72-bit Ecc
• Manufacturer: Samsung Semiconductor, Inc.

9.2 Operating Temperature Condition
Note :
1. Operating Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to
2. At 85 - 95 °C operation temperature range, doubling refresh commands in frequency to a 32ms period ( tREFI=3.9 us ) is required, and to enter to self
9.3 Input DC Logic Level
9.4 Input AC Logic Level
9.5 AC Input Test Conditions
Notes:
1. Input waveform timing is referenced to the input signal crossing through the V
2. The input signal minimum slew rate is to be maintained over the range from V
3. AC timings are referenced with input waveforms switching from V
RDIMM
JESD51.2 standard.
refresh mode at this temperature range, an EMRS command is required to change internal refresh rate.
max for falling edges as shown in the below figure.
transitions.
V
SWING(MAX)
Symbol
V
V
Symbol
V
Symbol
V
SLEW
IH
IL
IH
V
Symbol
IL
T
(AC)
(AC)
REF
(DC)
(DC)
OPER
Input reference voltage
Input signal maximum peak to peak swing
Input signal minimum slew rate
AC input logic high
AC input logic low
Parameter
DC input logic high
DC input logic low
V
Parameter
Falling Slew =
SWING(MAX)
Operating Temperature
Parameter
delta TF
Condition
V
REF
< AC Input Test Signal Waveform >
- V
delta TF
IL
(AC) max
V
REF
V
IL
REF
Min.
(AC) to V
+ 0.200
-
10 of 19
Min.
- 0.3
+ 0.125
delta TR
IH
IH/IL
REF
DDR2-667, DDR2-800
(AC) on the positive transitions and V
Rising Slew =
(AC) level applied to the device under test.
to V
Rating
0 to 95
IH
V
(AC) min for rising edges and the range from V
V
REF
DDQ
0.5 * V
Max.
Value
- 0.125
1.0
1.0
+ 0.3
V
DDQ
IH
(AC) min - V
V
V
V
V
V
V
V
delta TR
DDQ
IH
IH
REF
IL
IL
SS
(DC) max
(AC) max
(AC) min
(DC) min
V
REF
Max.
REF
- 0.200
Units
-
°C
Units
Units
V/ns
Rev. 1.2 August 2008
V
V
IH
V
V
(AC) to V
DDR2 SDRAM
IL
(AC) on the negative
Notes
1, 2
REF
Notes
Notes
2, 3
Units
1
1
V
V
to V
IL
(AC)