M391T2953EZ3-CE6 Samsung Semiconductor, M391T2953EZ3-CE6 Datasheet - Page 14

• Manufacturer Part Number: M391T2953EZ3-CE6
• Manufacturer: Samsung Semiconductor

Specifications of M391T2953EZ3-CE6

• Lead Free Status / RoHS Status: Compliant

10.2 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 JESD51.2
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
10.3 Input DC Logic Level
10.4 Input AC Logic Level
10.5 AC Input Test Conditions
Note :
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
UDIMM
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
Symbol
V
V
Symbol
V
V
SLEW
IH
Symbol
IH
IL
IL
V
T
(DC)
(AC)
REF
(DC)
(AC)
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
V
REF
REF
< AC Input Test Signal Waveform >
Min.
DDR2-400, DDR2-533
- V
delta TF
+ 0.250
-
IL
(AC) max
V
IL
REF
(AC) to V
14 of 27
Min.
- 0.3
+ 0.125
V
REF
Max.
delta TR
- 0.250
IH
-
IH/IL
REF
(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
V
DDQ
0.5 * V
REF
Max.
Value
- 0.125
1.0
1.0
Min.
+ 0.3
DDR2-667, DDR2-800
+ 0.200
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
Units
REF
°C
Max.
Units
Units
- 0.200
V/ns
V
V
IH
Rev. 1.3 July 2008
V
V
(AC) to V
DDR2 SDRAM
IL
Units
(AC) on the negative
V
V
Notes
1, 2
REF
Notes
Notes
2, 3
1
1
to V
Notes
IL
(AC)