M391T6453FGZ3-CE6/D5/CC SAMSUNG [Samsung semiconductor], M391T6453FGZ3-CE6/D5/CC Datasheet - Page 11

• Manufacturer Part Number: M391T6453FGZ3-CE6/D5/CC
• Description: DDR2 Unbuffered SDRAM MODULE
• Manufacturer: SAMSUNG [Samsung semiconductor]

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 0 - 85 °C, operation temperature range are the temperature which all DRAM specification will be supported.
3. 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
Input DC Logic Level
Input AC Logic Level
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
256MB, 512MB Unbuffered DIMMs
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
IH
V
Symbol
IL
IL
TOPER
REF
(DC)
(DC)
(AC)
(AC)
Input reference voltage
Input signal maximum peak to peak swing
Input signal minimum slew rate
DC input logic high
DC input logic low
AC input logic high
AC input logic low
Parameter
V
Parameter
Falling Slew =
SWING(MAX)
Operating Temperature
Parameter
delta TF
Condition
V
REF
< AC Input Test Signal Waveform >
delta TF
- V
IL
(AC) max
V
REF
V
IL
REF
(AC) to V
V
DDR2-400, DDR2-533
Min.
DDQ
+ 0.250
-
Min.
+ 0.125
- 0.3
IH
delta TR
IH/IL
REF
(AC) on the positive transitions and V
Rising Slew =
V
(AC) level applied to the device under test.
to V
REF
Rating
0 to 95
Max.
IH
- 0.250
-
(AC) min for rising edges and the range from V
V
V
REF
0.5 * V
DDQ
Max.
Value
- 0.125
1.0
1.0
+ 0.3
V
DDQ
IH
V
(AC) min - V
REF
V
V
V
V
V
V
V
delta TR
DDQ
IH
IH
REF
IL
IL
SS
Min.
(DC) max
(AC) max
(AC) min
(DC) min
+ 0.200
DDR2-667
REF
Units
°C
Units
Units
V/ns
IH
V
Rev. 1.3 Aug. 2005
V
V
V
V
(AC) to V
REF
DDR2 SDRAM
Max.
- 0.200
IL
(AC) on the negative
Units
Notes
1, 2, 3
REF
V
V
Notes
Notes
2, 3
1
1
to V
Notes
IL
(AC)