M378T2953GZ3-CF7 Samsung Semiconductor, M378T2953GZ3-CF7 Datasheet - Page 13

• Manufacturer Part Number: M378T2953GZ3-CF7
• Manufacturer: Samsung Semiconductor

Specifications of M378T2953GZ3-CF7

• 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
V
Symbol
V
SLEW
Symbol
Symbol
IH
IL
V
V
V
T
IH
(DC)
IL
REF
(DC)
OPER
(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
V
Parameter
Falling Slew =
Parameter
SWING(MAX)
Operating Temperature
Parameter
delta TF
Condition
V
REF
< AC Input Test Signal Waveform >
- V
delta TF
IL
(AC) max
V
IL
V
REF
(AC) to V
REF
13 of 22
Min.
- 0.3
Min.
+ 0.125
+ 0.200
DDR2-667, DDR2-800
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
DDQ
0.5 * V
Max.
V
Value
- 0.125
REF
1.0
1.0
+ 0.3
V
Max.
DDQ
IH
- 0.200
(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
REF
Units
°C
Units
Units
V/ns
V
V
IH
Rev. 1.2 July 2008
V
V
(AC) to V
Units
DDR2 SDRAM
V
V
IL
(AC) on the negative
Notes
1, 2
REF
Notes
Notes
Notes
2, 3
1
1
to V
IL
(AC)