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uMMC Timing Characteristics

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Brett Hagman edited this page Aug 9, 2015 · 1 revision

Timing Characteristics

Parameter Min Typ Max Units
Serial Speed 2400 460800 bps
Power up delay: no card 200 ms
Power up delay: w/card 200 250 400+ (a) ms
Card initialization time (b) 30 80 200+ (a) ms

(a) Card communication timing will vary widely from brand to brand depending on many factors.

(b) This is the amount of time taken to initialize a card after insertion and a command has been sent, but before the command has been executed.

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