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Operating temperature conditions, Ddr3 sodimm product datasheet – SP / Silicon Power SP008GBSTU160N02 User Manual

Page 10

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DDR3 SODIMM

Product Datasheet

Rev. 1.5a Nov. 2012

10

Operating temperature Conditions

Symbol

Parameter

Rating

Units Note

Normal Operating Temperature Range

0 to 85

°C

1, 2

T

OPER

Extended Temperature Range (Optional)

85 to 95

°C

1,3

Note:
1. Operating Temperature T

OPER

is the case surface temperature on the center / top side of the DRAM.

2. The Normal Temperature Range specifies the temperatures where all DRAM specifications will be

supported. During operation, the DRAM case temperature must be maintained between 0 to 85 °C under all

operating conditions

3. Some applications require operation of the DRAM in the Extended Temperature Range between 85 °C

and 95 °C case temperature. Full specifications are supported in this range, but the following additional

conditions apply:

a) Refresh commands must be doubled in frequency, therefore reducing the Refresh interval tREFI to

3.9 μs. It is also possible to specify a component with 1X refresh (tREFI to 7.8μs) in the Extended

Temperature Range. Please refer to supplier data sheet and/or the DIMM SPD for option

availability.

b) If Self-Refresh operation is required in the Extended Temperature Range, then it is mandatory to

either use the Manual Self-Refresh mode with Extended Temperature Range capability (MR2 A6 =

0b and MR2 A7 = 1b) or enable the optional Auto Self-Refresh mode(MR2 A6 = 1b and MR2 A7 =

0b). Please refer to the supplier data sheet and/or the DIMM SPD for Auto Self-Refresh option

availability, Extended Temperature Range support and tREFI requirements in the Extended

Temperature Range.

DC Electrical Characteristics and Operating Conditions

Symbol

Parameter

Min

Typ

Max

Units

Notes

V

DD

Supply

Voltage 1.425 1.5 1.575 V

1,2

V

DDQ

Output Supply Voltage

1.425

1.5

1.575

V

1,2

Note:
1. Under all conditions V

DDQ

must be less than or equal to V

DD

.

2. V

DDQ

tracks with V

DD

. AC parameters are measured with V

DD

and V

DDQ

tied together.