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ST2201U Datasheet(PDF) 5 Page - Sitronix Technology Co., Ltd.

Part # ST2201U
Description  Integrated Microcontroller
PDF  12 Pages
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Manufacturer  SITRONIX [Sitronix Technology Co., Ltd.]
Direct Link  http://www.sitronix.com.tw
Logo SITRONIX - Sitronix Technology Co., Ltd.

ST2201U Datasheet(HTML) 5 Page - Sitronix Technology Co., Ltd.

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ST2201U
Ver 0.4
Page 5/12
2009/08/17
29
AVSS2
GND for USB
30
VOUT3.3
3.3V regulator output pin; connect a Cap
to AVSS2 pin
31
VBUS
5V USB bus-power input pin
32
VU5_3
Regulator 1 output
33
VBT6_3
Regulator 2 output
34
VBTIN
Battery input
35
VBT6_5
Regulator 3 output
36
VBT_GND Connected to GND of battery
37
OTPKEY
Dedicated input key to wake up ST2201U
from power-down mode
38
PBK1
Reserved, must be connected to VBTIN
39
SC_DET
Smart card detection pin
40
SC_VSS
GND of smart card function
41
SC_GND
Smart card GND pin
42
SC_VCC
Smart card 5V power pin
43
SC_VDD
VDD of smart card function
44
SC_RST
Smart card RESET pin
45
SC_RX
Smart card Rx pin
46
SC_IO
Smart card I/O pin
47
SC_CLK
Smart card clock pin
48
PD3
Port D[3]
timer2 output
external edge
trigger
49
PD2
Port D[2]
timer1 output
external edge
trigger
50
PD1
Port D[1]
sc_clk output or
Load2
external edge
trigger
51
PD0
Port D[0]
system source
clock
external edge
trigger
52
AVDD
VDD pin of analog module
53
VIN
Voltage input pin of low-voltage-detection
function
54
AVSS
GND pin of analog module
55
OSCXI
32k crystal
56
OSCXO
32k crystal
57
RESETB
/RESET pin
58
XIO
4,6,8MHz crystal connection pin
59
OSCI
4,6,8MHz crystal connection pin



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