Rev. 0.3 / Dec. 2009

8

ABSOLUTE MAXIMUM RATINGS

Operating Conditions and Environmental Parameters

Notes:

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. Exposure to absolute maximum rating con

ditions for extended periods may affect reliability.

2. Up to 9850 ft.

3. If the DRAM case temperature is Above 85oC, the Auto-Refresh command interval has to be reduced to

tREFI=3.9us. For Measurement conditions of TCASE, please refer to the JEDEC document JESD51-2.

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

value of VREF is expected to be about 0.5 x VDDQ of the transmitting device and VREF is expected to track varia-

tions 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.

Parameter

Symbol

Value

Unit

Note

- 1.0 V ~ 2.3 V

V

1

- 0.5 V ~ 2.3 V

V

1

Voltage on VDDL pin relative to Vss

VDDL

-0.5V ~ 2.3 V

V

1

Voltage on any pin relative to Vss

- 0.5 V ~ 2.3 V

V

1

Parameter

Symbol

Rating

Units

Notes

DIMM Operating temperature (ambient)

0 ~ +65

Storage Temperature

-50 ~ +100

1

Storage Humidity (without condensation)

5 to 95

%

1

DIMM Barometric Pressure (operating & storage)

105 to 69

K Pascal

2

DRAM Component Case Temperature Range

0 ~+95

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

1.8

-

3.3

V