Hynix HMP125U6EFR8C-S6 Fascicule
Rev. 0.3 / Nov. 2008 11
1
240pin DDR2 SDRAM Unbuffered DIMMs
ABSOLUTE MAXIMUM RATINGS
Operation Conditions and Environmental Parameters
Note:
1. Stress greater than those listed may cause permanent damage to the device. This is a stress rating only, and device
functional operation at or above the conditions indicated is not implied. Expousure to absolute maximum rating con
ditions for extended periods may affect reliablility.
2. Up to 9850 ft.
3. If the DRAM case temperature is Above 85
o
C, the Auto-Refresh command interval has to be reduced to
tREFI=3.9us. For Measurement conditions of T
CASE
, please refer to the JEDEC document JESD51-2.
DC OPERATING CONDITIONS
(SSTL_1.8)
Note:
1. Min. Typ. and Max. values increase by 100mV for C3(DDR2-533 3-3-3) speed option.
2. VDDQ tracks with VDD,VDDL tracks with VDD. AC parameters are measured with VDD,VDDQ and VDD.
3. The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically the
2. VDDQ tracks with VDD,VDDL tracks with VDD. AC parameters are measured with VDD,VDDQ and VDD.
3. The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically the
value of VREF is expected to be about 0.5 x VDDQ of the transmitting device and VREF is expected to track vari-
ations in VDDQ.
ations in VDDQ.
4. Peak to peak ac noise on VREF may not exceed +/-2% VREF (dc).
5. VTT of transmitting device must track VREF of receiving device.
5. VTT of transmitting device must track VREF of receiving device.
Parameter
Symbol
Value
Unit
Note
Voltage on V
DD
pin relative to Vss
V
DD
- 1.0 ~ 2.3
V
1
Voltage on V
DDQ
pin relative to Vss
V
DDQ
- 0.5 ~ 2.3
V
1
Voltage on any pin relative to Vss
V
IN,
V
OUT
- 0.5 ~ 2.3
V
1
Parameter
Symbol
Rating
Units
Notes
DIMM Operating temperature (ambient)
T
OPR
0 ~ +55
o
C
Storage Temperature
T
STG
-50 ~ +100
o
C
1
Storage Humidity (without condensation)
H
STG
5 to 95
%
1
DIMM Barometric Pressure (operating & storage)
P
BAR
105 to 69
K Pascal
2
DRAM Component Case Temperature Range
T
CASE
0 ~+95
o
C
3
Symbol
Parameter
Rating
Units
Notes
Min.
Typ.
Max.
VDD
Supply Voltage
1.7
1.8
1.9
V
1
VDDL
Supply Voltage for DLL
1.7
1.8
1.9
V
1,2
VDDQ
Supply Voltage for Output
1.7
1.8
1.9
V
1,2
VREF
Input Reference Voltage
0.49*VDDQ
0.50*VDDQ
0.51*VDDQ
mV
3,4
VTT
Termination Voltage
VREF-0.04
VREF
VREF+0.04
V
5
VDDSPD
EEPROM Supply Voltage
1.7
-
3.6
V