User's Manual

Doc Title Wireless Smart Audio Module-A98ML Specification

Number

WMB20180515

Version

0.4

Document No.: WMB20180428 Page 8 of 19

Figure 2-1 A98ML 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,

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