Dataram DTM65525B Datasheet download pdf (Page 12)

DTM65525B

2 GB, 240-Pin DDR2 FB-DIMM

AC Operating Conditions (AC operating conditions unless otherwise noted)

Parameter Symbol

Min

Value

Max

Value

Unit Note

DQ Input Pulse Width

DIPW

0.35 - CLK

Read DQS Preamble Time

RPRE

0.9 1.1 CLK

Read DQS Postamble Time

RPST

0.4 0.6 CLK

Write DQS Preamble Hold Time

WPRE

0.35 - CLK

Write DQS Postamble Time

WPST

0.4 0.6 CLK

Mode Register Set Delay

MRD

2 - CLK

Exit Self Refresh to Non-Read Command

XSNR

tRFC + 10

Exit Self Refresh to Read Command

XSRD

200 - CLK

- 7.8 μs 1

Average Periodic Refresh Interval

REFI

- 3.9 μs 2

NOTES:

1. For 0 C < T

Case

≤ 85 C

2. For 85 C < T

Case

≤ 95 C

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 18

DTM65525B 1

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Dataram DTM65525B Datasheet Page 12

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