Doc Title Wireless Smart Audio Module-A98 Datasheet
Number
WMB20180504
Document No.: WMB20180504 Page 10 of 23
Figure 2-1 A98 Interface Pins
Pin Description:
Pin No.
Pin Name Type
Description Power Domain
1, 3, 5,
16, 23,
25, 27,
28, 34,
46, 50,
53, 54,
58, 63,
64, 74,
75
GND Supply
Digital ground GND
2，4，6
VDD_5V Power Power supply input > 800mA 3.5 - 5.5V
7 GPIOZ_7 I/O General purpose input output 3.3V
17 I2C1_SCL
I/O I2C bus1 clock 3.3V
19 I2C1_SDA
I/O I2C bus1 data 3.3V
21 GPIOZ_3
I/O General purpose input output 3.3V
29 GPIOZ_6 I/O General purpose input output 3.3V
31 PWM_B O Pulse Width Modulation B 3.3V
33 PWM_D O Pulse Width Modulation C 3.3V
35 PWMAO_C O Pulse Width Modulation AO_C 3.3V
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