M470T6554CZ0 Samsung semiconductor, M470T6554CZ0 Datasheet - Page 9

• Manufacturer Part Number: M470T6554CZ0
• Description: DDR2 Unbuffered SODIMM
• Manufacturer: Samsung semiconductor

256MB, 512MB, 1GB Unbuffered SODIMMs
Operating Temperature Condition
Input DC Logic Level
Input AC Logic Level
AC Input Test Conditions
Notes:
1.
2.
3. AC timings are referenced with input waveforms switching from V
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 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)
negative transitions.
Symbol
V
Symbol
V
Symbol
to JESD51.2 standard.
enter to self refresh mode at this temperature range, an EMRS command is required to change internal refresh rate.
V
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
V
IH
IL
IH
Symbol
TOPER
IL
(DC)
(DC)
(ac)
(ac)
IL
(AC) max for falling edges as shown in the below figure.
ac input logic high
ac input logic low
Input reference voltage
Input signal maximum peak to peak swing
Input signal minimum slew rate
Parameter
DC input logic high
DC input logic low
Parameter
Operating Temperature
Parameter
Condition
V
Falling Slew =
SWING(MAX)
V
REF
DDR2-400, DDR2-533
Min.
+ 0.250
-
delta TF
V
REF
V
- 0.3
V
Min.
REF
REF
< AC Input Test Signal Waveform >
+ 0.125
- V
delta TF
Max.
- 0.250
-
IL
(AC) max
Rating
0 to 95
V
0.5 * V
1.0
1.0
IL
V
REF
(AC) to V
DDQ
V
REF
Value
Max.
- 0.125
DDQ
Min.
+ 0.3
+ 0.200
delta TR
IH
DDR2-667
(AC) on the positive transitions and V
IH/IL
REF
Rising Slew =
V
V
V/ns
(AC) level applied to the device under test.
to V
V
Units
°C
REF
Units
Units
IH
Max.
V
V
(AC) min for rising edges and the range from V
- 0.200
V
IH
(AC) min - V
1
1
2, 3
V
V
V
V
V
V
V
delta TR
Units
DDQ
IH
IH
REF
IL
IL
SS
Notes
1, 2, 3
(DC) max
(AC) max
V
V
Notes
(AC) min
(DC) min
Notes
REF
Rev. 1.1 Mar. 2005
IH
(AC) to V
DDR2 SDRAM
IL
(AC) on the
REF