Transcend Information miniSDHC Card Series manual 4GB High Capacity miniSD Card Bus Timing

miniSDHC Card series

4GB High Capacity miniSD Card

•Bus Timing

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	CCARD ≤ 10 pF, (1 card)
	Clock frequency Identification Mode	fOD	0(1)/100	400	KHz	CCARD ≤ 10 pF, (1 card)
	Clock low time	tWL	10		ns	CCARD ≤ 10 pF, (1 card)
	Clock high time	tWH	10		ns	CCARD ≤ 10 pF, (1 card)
	Clock rise time	tTLH		10	ns	CCARD ≤ 10 pF, (1 card)
	Clock fall time	tTHL		10	ns	CCARD ≤ 10 pF, (1 card)
	Inputs CMD, DAT (referenced to CLK)
	Input set-up time	tISU	5		ns	CCARD ≤ 10 pF, (1 card)
	Input hold time	tIH	5		ns	CCARD ≤ 10 pF, (1 card)
	Outputs CMD, DAT (referenced to CLK)
Transcend Information Inc.			8