W681308DG Datasheet, PDF (10/64 Pages) Nuvotem Talema – W681308 USB Audio Controller from Nuvoton integrates fast 8051 Microcontroller Unit (MCU)

W681308
XXXX PRODUCT DESCRIPTION
Pin Name
TDO/GPIO 2
VPP
AGND
SPN
EARN
AVDD
EARP
SPP
AGND
RGND
MCO
MCP
VREF2
VREF1
REGL
KY4/GPIO 24
KY3/GPIO 23
KY2/GPIO 22
KY1/GPIO 21
KY0/GPIO 20
KX4/GPIO 19
KX3/GPIO 18
KX2/GPIO 17
KX1/GPIO 16
KX0/GPIO 15
JTAG
Pin State in
No Reset
Functionality
23 Pull-L JTAG Data Output / GPIO 2
24
Reset signal for digital core. Tie this pin to 6.75V for
programming the OTP ROM
25
Analog ground supply voltage
26
Speaker1 negative connection
27
Speaker2 negative connection
28
Analog supply voltage
29
Speaker2 positive connection
30
Speaker1 positive connection
31
Analog ground supply voltage
32
Low noise ADC and DAC reference
33
The microphone amplifier output
34
Microphone positive connection
35
Voltage reference
36
Voltage reference
37
Linear regulator base control output
38 Pull-H Keypad row Y4 connection /GPIO 24
39 Pull-H Keypad row Y3 connection /GPIO 23
40 Pull-H Keypad row Y2 connection /GPIO 22
41 Pull-H Keypad row Y1 connection /GPIO 21
42 Pull-H Keypad row Y0 connection /GPIO 20
43 Pull-L Keypad column X4 connection /GPIO 19
44 Pull-L Keypad column X3 connection /GPIO 18
45 Pull-L Keypad column X2 connection /GPIO 17
46 Pull-L Keypad column X1 connection /GPIO 16
47 Pull-L Keypad column X0 connection /GPIO 15
48
Pull-L
Tie to DGND for normal operation. Tie to DVDD to
enable JTAG function.
Table 1 Pin Description
Pin Type
D
I/O
A
P
A
P
A
O
A
O
A
P
A
O
A
O
A
P
A
P
A
G
A
O
A
O
A
O
A
O
D
I/O
D
I/O
D
I/O
D
I/O
D
I/O
D
I/O
D
I/O
D
I/O
D
I/O
D
I/O
D
I
Driver
Strength
2 mA
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
NOTE: All GPIO pins modes are controlled by register settings.
10
Rev1.2