WB2L Datasheet
Hangzhou Tuya Information Technology Co., Ltd.
V1.0.0
7
Pin No.
Symbol
I/O Type
Function
4
PWM5
I/O
Hardware PWM pin, which is connected to IRDA/PWM5 (pin
15) on the internal IC
5
PWM4
I/O
Hardware PWM pin, which is connected to LPO_CLK/PWM4
(pin 16) on the internal IC
6
GND
P
Power supply reference ground pin
7
3V3
P
Power supply pin (3.3 V)
Note:
P
indicates power supply pins, and
I/O
indicates input/output pins.
2.3 Test Pin Definition
Table 2-2 WB2L test pins
Pin No.
Symbol
I/O Type
Function
N/A
GND
P
Power supply reference ground pin
N/A
RST
Input
Hardware reset pin (It is at a high level by
default and is active at a low level.)
N/A
U1_TXD
I/O
UART1_TX, which is used as a user-side
serial interface pin
N/A
U1_RXD
I/O
UART2_RX, which is used as a user-side
serial interface pin
N/A
U2_TXD
I/O
Log TX pin
N/A
U2_RXD
I/O
Log RX pin
N/A
F_SCK
I/O
Clock pin when data is downloaded from
the flash memory
N/A
F_CSN
I/O
Command enabling pin when data is
downloaded from the flash memory
N/A
F_SI
I/O
Data input pin when data is downloaded
from the flash memory
N/A
F_SO
I/O
Data output pin when data is downloaded
from the flash memory
Note: Test pins are not recommended.
