Swissbit AG

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Revision: 1.10

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S-300u_data_sheet_SD-NxBW_Rev110

Switzerland

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11 of 23

Figure 6: AC Characteristics Low Speed Mode

Table 16: AC Characteristics High Speed Mode

Parameter

Symbol

Min

Max

Unit

Notes

Clock frequency in data transfer mode

fPP

0

50

MHz

CL≤10pF

Clock low time

tWL

7.0

ns

Clock high time

tWH

7.0

ns

Clock rise time

tTLH

3

ns

Clock fall time

tTHL

3

ns

CMD, DAT input setup time

tISU

6

ns

CMD, DAT input hold time

tIH

2

ns

CMD, DAT output delay time during data

transfer mode

tODLY

14

ns

CMD, DAT output hold time

tOH

2.5

ns

Notes

1.

Rise and fall times are measured from 10% to 90% of voltage level.

2. CLK referenced to VIH min and VIL max.

3. CMD and DAT inputs and outputs referenced to CLK.

4. In order to satisfy severe timing, the host shall drive only one card with max 40pF total at each line.

Figure 7: AC Characteristics High Speed Mode