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BK3231 Datasheet(PDF) 8 Page - List of Unclassifed Manufacturers

Part # BK3231
Description  Bluetooth HID SoC
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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BK3231
v0.1
© 2011Beken Corporation
Proprietary and Confidential
Page 8 of 12
4 PIN information
The next diagram shows QFN56 format for the full functions usage.It can be used as
keyboard TX part and total 35 GPIO available.
1
7
6
5
4
3
2
8
35
41
40
39
38
37
36
42
BK3231
QFN
7mmx7mm 56-Pin
P44
VCCDIG
XTALN
P11
P04
P47
MBISTEN
PPROG
PRSTN
P03
P41
P02
P10
P14
P36
P37
14
14
13
12
11
XTALP
VCCXTAL
NC
VDDPA
RFP
VCCRF
33
32
31
30
34
P27
VDDDSP
VCCDIG
VDDSPI
10
9
29
TDI
TMS
Figure 2BK3231QFN56Pin Assignment
Table1BK3231 QFN56 pin description
PIN
Name
Pin Function
Description
1
P44
Digital I/O
General I/O
2
VCCDIG
Power supply
3 V supply
3
PPROG
Digital I/O
FLASH programming selection
4
MBISTEN
Digital I/O
Test enable
5
P47
Digital I/O
General I/O
6
P04
Digital I/O
General I/O, or MOSI for SPI
7
P11
Digital I/O
General I/O, or input for external active low
interrupt
8
XTALN
Analog output
Oscillator output
9
XTALP
Analog input
Oscillator input
10
VCCXTAL
Power supply
3 V supply
11
VCCRF
Power supply
3 V supply


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