Transcend TS2GUSD2 Datový list stáhnout pdf (Strana 6)

microSD Memory Card

Transcend Information Inc.

• Bus Timing (High-speed Mode)

Parameter Symbol Min Max. Unit Remark

Clock CLK (All values are referred to min (V

) and max (V

)

Clock frequency Data Transfer Mode f

0 50 MHz C

CARD

≤ 10 pF, (1 card)

Clock low time t

7 ns C

CARD

≤ 10 pF, (1 card)

Clock high time t

7 ns C

CARD

≤ 10 pF, (1 card)

Clock rise time t

TLH

3 ns C

CARD

≤ 10 pF, (1 card)

Clock fall time t

THL

3 ns C

CARD

≤ 10 pF, (1 card)

Inputs CMD, DAT (referenced to CLK)

Input set-up time t

ISU

6 ns C

CARD

≤ 10 pF, (1 card)

Input hold time t

2 ns C

CARD

≤ 10 pF, (1 card)

Outputs CMD, DAT (referenced to CLK)

Output Delay time during Data Transfer Mode t

ODLY

14 ns C

≤ 40 pF, (1 card)

Output Hold time t

2.5 ns C

≤ 40 pF, (1 card)

Total System capacitance for each line

40 pF (1 card)

1) In order to satisfy severe timing, host shall drive only one card.

1 2 3 4 5 6 7 8 9 10 11 ... 24 25

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Transcend TS2GUSD2 Datový list Strana 6

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