M378T2953CZ3-CD5 Samsung Semiconductor, M378T2953CZ3-CD5 Datasheet - Page 14

• Manufacturer Part Number: M378T2953CZ3-CD5
• Manufacturer: Samsung Semiconductor

Specifications of M378T2953CZ3-CD5

• 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.
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
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
Symbol
V
V
V
Symbol
SLEW
IH
IH
IL
IL
Symbol
V
TOPER
(DC)
(AC)
REF
(DC)
(AC)
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
Parameter
V
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 24
Min.
- 0.3
+ 0.125
V
REF
Max.
- 0.250
delta TR
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
0.5 * V
DDQ
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
Rev. 1.5 October 2006
- 0.200
Units
V/ns
V
V
IH
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)