Product Manual

BT3L Datasheet
7
2.2 Interface Pin Definition
Table 2-1 BT3L interface pins
Pin
No.
Symbol
I/O
Type
Function
1
RST
I/O
Hardware reset pin, which is active at a low level
and is connected to pin 25 on the IC
2
ADC
AI
12-bit ADC, which is connected to pin 24 on the
IC
3
NC
I/O
NC
4
TL_D7
I/O
GPIO, which is connected to pin 2 on the IC
5
TL_D2
I/O
Common I/O, which can be used as a PWM
output of the LED drive and is connected to pin 31
on the IC
6
TL_C3
I/O
Common I/O, which can be used as a PWM
output of the LED drive and is connected to pin 23
on the IC
7
TL_C2
I/O
Common I/O, which can be used as a PWM
output of the LED drive and is connected to pin 22
on the IC
8
VDD_BAT
P
Power supply pin (3.3 V)
9
GND
P
Power supply reference ground pin
10
TL_C0
I/O
GPIO, which is connected topin 20 on the IC
11
SWS
Input
Programming pin, which is connected to pin 5 on
the IC