Chengdu Ebyte Electronic Technology Co.,Ltd
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co.,Ltd
2-5
14
1V35-SMPS
P
Module 1.35V power output, external decoupling capacitor is recommended,
see Recommended circuit for details
15
VREGENA
BLE
I
Bluetooth module power-on / power-off control pin, high level is effective.
Note that the module needs to be initialized before powering on.
16
VCHG
P
Internal charger input, usually connected to VBUS, see Typical application
circuit for details
17
CHG_EXT
P
External battery charger control (reserved function)
18
VBAT_SE
P
Battery charge sensing input (reserved function)
19
VBAT-IN
P
Battery power input pin, cannot exceed 3.6V, otherwise the module will be
damaged
20
GND
P
Ground, connect to power reference ground
21
USB-DN
I/O
USB cable negative (reserved function)
22
USB-DP
I/O
USB cable positive (reserved function)
23
PIO18
I/O
General-purpose I / O (reserved function)
24
PIO21
I/O
General-purpose I / O (reserved function)
25
PIO6
I/O
General-purpose I / O (reserved function)
26
PIO1
I/O
Next song Key input, high level is effective
27
PIO8
I/O
Previous song Key input, high level is effective
28
VDD-PADS
-1
P
Input and output port power supply 1, usually 1.8V power supply connection
29
1V8-SMPS
P
Module 1.8V power output, external decoupling capacitor is recommended, see
4.2 Recommended circuit for details
30
VDD-PADS
-2
P
Input and output port power 2, usually 1.8V power connection
31
PIO7
I/O
Key input, high level effective, long press to continuously
increase;
32
PIO9
I/O
Play / Pause
Key input, high level effective
33
PIO0
I/O
Volume -
Key input, high level effective, long press to continuously
decrease;
34
MIC-AN
I
Channel A line or microphone input negative
35
MIC-AP
I
Channel A line or microphone input positive
36
MIC-BIAS
I
Microphone bias
37
LINE-BN
I
Channel B line input negative
38
LINE-BP
I
Channel B line input positive
39
SPK-RN
O
Right channel speaker output negative
40
SPK-RP
O
Right channel speaker output positive
41
SPK-LN
O
Left channel speaker output negative
42
SPK-LP
O
Left channel speaker output positive
43
GND
P
Ground, connect to power reference ground
pay attention:
The function description of the above pins is only for the default program functions of our company. If you need other
functions, please contact us for customization. For the self-developed pin functions, please refer to the official user manual of
CSRA64215.
