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T T TS S S1 1 12 2 28 8 8M M M~ ~ ~2 2 2G G GS S SD D DM M M miniSD Memory Card Transcend Information Inc. 5 • 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 CL ≤ 100 pF, (7 cards) Clock frequency Identification Mode (The low freq. is required for MultiMediaCard compatibility.) fOD 0 400 KHz CL ≤ 250 pF, (21 cards) tWL 10 ns CL ≤ 100 pF, (7 cards) Clock low time 50 ns CL ≤ 250 pF, (21 cards) tWH 10 ns CL ≤ 100 pF, (7 cards) Clock high time 50 ns CL ≤ 250 pF, (21 cards) tTLH 10 ns CL ≤ 100 pF, (7 cards) Clock rise time 50 ns CL ≤ 250 pF, (21 cards) tTHL 10 ns CL ≤ 100 pF, (7 cards) Clock fall time 50 ns CL ≤ 250 pF, (21 cards) Inputs CMD, DAT (referenced to CLK) Input set-up time tISU 5 ns CL ≤ 25 pF, (1 cards) Input hold time tIH 5 ns CL ≤ 25 pF, (1 cards) Outputs CMD, DAT (referenced to CLK) Output Delay time tODLY 0 14 ns CL ≤ 25 pF, (1 cards) |
