SN8F2250B Series
USB 2.0 Full-Speed 8-Bit Micro-Controller
1.4 PIN DESCRIPTIONS
PIN NAME
TYPE
DESCRIPTION
VDD, VSS
P
Power supply input pins for digital circuit.
P0.0: Port 0.0 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
P0.0/INT0
I/O
INT0: External interrupt 0 input pin.
P0.1: Port 0.1 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
INT1: External interrupt 1 input pin.
P0: Port 0 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
RST is system external reset input pin under Ext_RST mode, Schmitt trigger
structure, active “low”, and normal stay to “high”.
P0.4 is input only pin with pull-up resistor under P0.4 mode.
Built wakeup function.
P0.1/INT1
P0[3:2]
I/O
I/O
I
P0.4/RST
P1: Port 1 bi-direction pin.
P1[7:0]
P2[5:0]
I/O
I/O
I/O
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
P2: Port 2 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
P5.0: Port 5.0 bi-direction pin.
P5.0/SCK
Schmitt trigger structure and built-in pull-up resisters as input mode.
SCK: SIO output clock pin.
P5.1: Port 5.1 bi-direction pin.
P5.1 /SDI
P5.2/SDO
I/O
I/O
I/O
I/O
Schmitt trigger structure and built-in pull-up resisters as input mode.
SDI: SIO data input pin.
P5.2: Port 5.2 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
SDO: SIO data output pin.
P5: Port 5 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
PWM1: PMW 1 output pin.
P5: Port 5 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
PWM0: PMW 0 output pin.
P5.3/PWM1
P5.4/PWM0
XOUT
XIN
VREG25
VREG33
D+, D-
I/O
I/O
P
P
I/O
XOUT: Oscillator output pin while external crystal enable.
XIN: Oscillator input pin while external oscillator enable (crystal and RC).
2.5V power pin. Please connect 1uF capacitor to GND.
3.3V power pin. Please connect XuF capacitor to GND. X=1~10.
USB differential data line.
SONiX TECHNOLOGY CO., LTD
Page 11
Version 1.1
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