M391T6553BG0-CC Samsung, M391T6553BG0-CC Datasheet - Page 12

• Manufacturer Part Number: M391T6553BG0-CC
• Description: DDR2 Unbuffered SDRAM MODULE
• Manufacturer: Samsung

256MB,512MB,1GB Unbuffered DIMMs
Operating Temperature Condition
Input DC Logic Level
Input AC Logic Level
AC Input Test Conditions
Notes:
1.
2.
3.
V
V
SLEW
1. Operating Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer
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
REF
SWING(MAX)
Symbol
V
V
Symbol
V
Symbol
V
to JESD51.2 standard.
enter to self refresh mode at this temperature range, an EMRS command is required to change internal refresh rate.
Input waveform timing is referenced to the input signal crossing through the V
The input signal minimum slew rate is to be maintained over the range from V
to V
AC timings are referenced with input waveforms switching from V
the negative transitions.
IH
IL
IH
IL
Symbol
TOPER
(DC)
(DC)
(AC)
(AC)
IL
(AC) max for falling edges as shown in the below figure.
Input reference voltage
Input signal maximum peak to peak swing
Input signal minimum slew rate
DC input logic high
AC input logic high
DC input logic low
AC input logic low
Parameter
Operating Temperature
Parameter
Parameter
Condition
V
Falling Slew =
SWING(MAX)
delta TF
V
V
REF
REF
V
- 0.3
Min.
Min.
REF
+ 0.125
+ 0.250
-
< AC Input Test Signal Waveform >
delta TF
- V
IL
(AC) max
Rating
0 to 95
V
V
0.5 * V
1.0
1.0
V
REF
REF
IL
DDQ
(AC) to V
Max.
Max.
Value
- 0.125
- 0.250
-
DDQ
+ 0.3
delta TR
IH
IH/IL
REF
(AC) on the positive transitions and V
Rising Slew =
V
V
V/ns
(AC) level applied to the device under test.
to V
Units
°C
Units
Units
Units
IH
V
V
V
V
(AC) min for rising edges and the range from V
V
IH
(AC) min - V
1
1
2, 3
V
V
V
V
V
V
V
delta TR
Notes
1, 2, 3
DDQ
IH
IH
REF
IL
IL
SS
Notes
(DC) max
(AC) max
Notes
Notes
(AC) min
(DC) min
REF
Rev. 1.2 Jan. 2005
IH
DDR2 SDRAM
(AC) to V
IL
(AC) on
REF