SONIX SN8P2501D - 1.4 Pin Descriptions

SN8P2501D
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD Page 9 Version 1.5
1.4 PIN DESCRIPTIONS
PIN NAME
TYPE
DESCRIPTION
VDD, VSS
P
Power supply input pins for digital and analog circuit.
P1.1/RST/VPP
I, P
RST: System external reset input pin. Schmitt trigger structure, active “low”, normal stay
to “high”.
VPP: OTP 12.3V power input pin in programming mode.
P1.1: Input only pin with Schmitt trigger structure and no pull-up resistor. Level change
wake-up.
P0.0/INT0
I/O
P0.0: Bi-direction pin. Schmitt trigger structure as input mode. Built-in pull-up resisters.
Level change wake-up.
INT0: External interrupt 0 input pin.
P1.0
I/O
P1.0: Bi-direction pin. Schmitt trigger structure as input mode. Built-in pull-up resisters.
Level change wake-up. Programmable open-drain structure.
P1.2/XOUT
I/O
XOUT: Oscillator output pin while external crystal enable.
P1.2: Bi-direction pin. Schmitt trigger structure as input mode. Built-in pull-up resisters.
Level change wake-up.
P1.3/XIN
I/O
XIN: Oscillator input pin while external oscillator enable (crystal and RC).
P1.3: Bi-direction pin. Schmitt trigger structure as input mode. Built-in pull-up resisters.
Level change wake-up.
P5.4/PWM0/BZ0
I/O
P5.4: Bi-direction pin. Schmitt trigger structure as input mode. Built-in pull-up resisters.
PWM0: PWM output pin.
BZ0: Buzzer TC0/2 output pin.
P2 [5:0]
I/O
P2 [5:0]: Bi-direction pin. Schmitt trigger structure as input mode. Built-in pull-up
resisters.