Data Sheet

FSC-BT691 Datasheet
Shenzhen Feasycom Technology Co.,Ltd www.feasycom.com
-6-
3. HARDWARE SPECIFICATION
3.1 Block Diagram and PIN Diagram
109
8
7
6
5
4
3
18
11
12
13
14
15
PIO8
PIO2
PIO2
NC
PIO10
NC
PIO6
NC
16
172
1
PIO9
PIO10
VDD
GND
NC
NC
PIO7
NC
PIO5
PIO11
19
20
GND
RF
Figure 2: FSC-BT691 PIN Diagram(Top View)
3.2 PIN Definition Descriptions
Table 2: Pin definition
Pin
Pin Name
Type
Pin Descriptions
Notes
1
PIO8
UART_TX
I/O
O
Programmable input/output line
Serial Transmitter Data
2
PIO9
UART_RX
I/O
I
Programmable input/output line
Serial Receiver Data
3
NC
NC (Do not connect to any pin)
4
NC
NC (Do not connect to any pin)
5
PIO6
ADC2
I/O
I
Programmable input/output line
Analog to Digital Converter input 2.
6
NC
NC (Do not connect to any pin)
7
VDD
VDD
Power supply voltage 1.8V-3.3V
8
GND
Vss
Power Ground
9, 13
PIO10
SWDIO
I/O
I/O
Programmable input/output line
Alternative Function: JTAG Data input/output. Bidirectional data
and control communication (by default).
10,14
PIO2
I/O
Programmable input/output line