Transcend Information manual 128MB~2GB SD80 Cards Bus Timing Default

Models: SD80

1 8
Download 8 pages 25.05 Kb
Page 5
Image 5

SD80 series

128MB~2GB SD80 Cards

Bus Timing (Default)

Parameter

Symbol

Min

Max.

Unit

Remark

Clock CLK (All values are referred to min (VIH) and max (VIL)

 

Clock frequency Data Transfer Mode

fPP

0

25

MHz

CL ≤ 100 pF, (7 cards)

 

 

Clock frequency Identification Mode

fOD

0

400

KHz

CL ≤ 250 pF, (21 cards)

 

 

(The low freq. is required for MultiMediaCard

 

 

 

 

 

 

 

compatibility.)

 

 

 

 

 

 

 

Clock low time

tWL

10

 

ns

CL ≤ 100 pF, (7 cards)

 

 

 

 

50

 

ns

CL ≤ 250 pF, (21 cards)

 

 

Clock high time

tWH

10

 

ns

CL ≤ 100 pF, (7 cards)

 

 

 

 

50

 

ns

CL ≤ 250 pF, (21 cards)

 

 

Clock rise time

tTLH

 

10

ns

CL ≤ 100 pF, (7 cards)

 

 

 

 

 

 

 

 

 

Transcend Information Inc.

 

5

 

 

 

 

Page 5
Image 5
Transcend Information manual 128MB~2GB SD80 Cards Bus Timing Default