64MB/128MB/256MB/512MB Secure Digital Card

Eorex Corporation

www.eorex.com

5/6

Parameter

Symbol

Min

Max

Unit

Remark

Clock frequency Data Transfer Mode

0

20

MHz

CL<100pF,(7 cards)

Clock frequency Identification Mode (The low freq.

is required for MultiMediaCard compatibility.)

0

400

KHz

CL<250pF,(21 cards)

10

ns

CL≤100pF, (7 cards)

Clock low time

50

ns

CL≤250pF, (21 cards)

10

ns

CL≤100pF, (7 cards)

Clock high time

50

ns

CL≤250pF, (21 cards)

10

ns

CL≤100pF, (7 cards)

Clock rise time

50

ns

CL≤250pF, (21 cards)

10

ns

CL≤100pF, (7 cards)

Clock fall time

50

ns

CL≤250pF, (21 cards)

Inputs CMD, DAT (referenced to CLK)

Input set-up time

5

ns

CL<25pF,(1 cards)

Input hold time

5

ns

CL<25pF,(1 cards)

Outputs CMD, DAT (referenced to CLK)

Output Delay time

0

14

ns

CL<25pF,(1 cards)