AU6331 Datasheet, PDF (12/23 Pages) List of Unclassifed Manufacturers – USB2.0 SD/MMC/MS Single/Dual LUN Card Reader Controller

Table 3.2 28 Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin Name
GND
RSTN
SUSPEND
SDDATA3
SDDATA2
SDDATA1
SDDATA0
SDWP
SDCDN
SDCLK
SDCMD
GPON7
RPU
VDDA_U
DP
DM
VSSA_U
RREF
VD33P_U
XI
XO
VS33P_U
V25_O
VDDH
VSSH
VDDH
SD_V33
VDD /
RDERMODE
I/O
P
I
O
I/O
I/O
I/O
I/O
I
I
O
I/O
O
I
P
I/O
I/O
P
I
P
I
O
P
P
P
P
P
P
P
Description
Ground for core
Chip Reset;("1": Normal[Default]; "0": Reset)
Suspend indicator ("1":Suspend;"0":Normal)
SD data3
SD data2
SD data1
SD data0
SD write protect; pull up with res.
SD card detect ("1": unDetected[Default];"0":Detected)
SD CLK
SD CMD; pull up with res.
LED on for card exists for Full/High Speed
Pull up with 1.5K res. To 3.3V VDD
3.3V analog power
DP
DM
Analog Ground
Pull down with 1K Res. To AVSS
OSC power 3.3V
12MHz Oscillator input
12MHz Oscillator output
OSC ground
2.5V output for core power
IO power 3.3V
IO ground
IO power 3.3V
SD card power
Core power 2.5V / Reader mode("1":Reader
mode;"0":Card mode)
AU6331 USB 2.0 SD/MMC/MS Single/Dual LUN Flash Memory Card Reader V1.02W
Official release _ Public
Page 12 of 23