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AU6331 Datasheet, PDF (19/23 Pages) List of Unclassifed Manufacturers – USB2.0 SD/MMC/MS Single/Dual LUN Card Reader Controller
5.6 Power Switch Feature
AU6331 integrates a 3.3V to 2.5V voltage regulator and power switch to replace all
MOS chips for flash card power supply.
Card Power Output Current Range
For SD/MMC/MS
MAX: 100mA
Card power output voltage range
SD/MMC/MS: 3.3V±0.3V
AU6331 will turn off all of Card Power in suspend mode
Figure 5.1 Card Detect Power-on Timing
CARD_POWER
1ms to 10ms ( Depend
Load Capacitor )
3.3V+/- 0.3V
100ms + System
Polling timing
CARD_DETECT
AU6331 USB 2.0 SD/MMC/MS Single/Dual LUN Flash Memory Card Reader V1.02W
Official release _ Public
Page 19 of 23