W9864G6IH-7 데이터 시트보기 (PDF) - Winbond

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W9864G6IH-7

1M X 4 BANKS X 16 BITS SDRAM

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W9864G6IH

AC Characteristics and Operating Condition, continued

PARAMETER

Refresh Time

Mode Register Set

Cycle Time

Exit self refresh to

ACTIVE Command

SYM.

tREF

MIN.

-5

MAX.

64

tRSC

10

-6

MIN. MAX.

64

14

-7

MIN. MAX.

64

14

-7S

MIN. MAX.

64

14

UNIT NOTES

mS

nS

tXSR

70

72

75

75

nS

Notes:

1.Operation exceeds “Absolute Maximum Ratings” may cause permanent damage to the devices.

2. All voltages are referenced to VSS

‧2.7V~3.6V power supply for -7/-7S speed grade.

3. These parameters depend on the cycle rate and listed values are measured at a cycle rate with the

minimum values of tCK and tRC.

4. These parameters depend on the output loading conditions. Specified values are obtained with

output open.

5. Power up sequence please refer to "Functional Description" section described before.

6. AC Test Load diagram.

output

Z = 50 ohms

1.4 V

50 ohms

30pF

AC TEST LOAD

7. tHZ defines the time at which the outputs achieve the open circuit condition and is not referenced to

output level.

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Publication Release Date:Mar. 31, 2008

Revision A05

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