Transcend Information 2GSDM80, TS128M manual Bus Timing Default

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TS128M~2GSDM80	128M~2GB miniSD Memory Card

•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

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Contents 128M~2GB miniSD Memory Card Placement FeaturesDescription Pin DefinitionArchitecture Bus Signal Line Load Power Supply VoltageParameter Symbol Min Max Unit Bus Operating Conditions GeneralParameter Symbol Min Max Unit Remark Bus Signal LevelsBus Timing Default Clock fall time Bus Timing High Speed Mode Reliability and Durability