Preliminary
SN8P1702A/SN8P1703A
8-bit micro-controller build-in 12-bit ADC
PIN DESCRIPTIONS
PIN NAME
VDD, VSS
RST
TYPE
P
I
DESCRIPTION
Power supply input pins for digital circuit.
System reset input pin. Schmitt trigger structure, active “low”, normal stay to “high”.
XIN, XOUT
P0.0 / INT0
P1.0 ~ P1.1
P4.0 ~ P4.3
P5.0~P5.2, P5.5
I, O External oscillator pins. RC mode from XIN.
Port 0.0 and shared with INT0 trigger pin (Schmitt trigger) / Built-in pull-up resisters.
I/O Port 1.0~Port 1.1 bi-direction pins / Built-in pull-up resisters.
I/O Port 4.0~Port 4.3 bi-direction pins / Built-in pull-up resisters.
I/O Port 5.0~Port 5.2, P5.5 bi-direction pins / Built-in pull-up resisters.
I
Port 5.3 bi-direction pin, TC1÷2 signal output pin for buzzer or PWM1 output pin.
Built-in pull-up resisters.
Port 5.4 bi-direction pin, TC0÷2 signal output pin for buzzer or PWM0 output pin.
Built-in pull-up resisters.
P5.3 / BZ1 / PWM1
P5.4 / BZ0 / PWM0
I/O
I/O
AVREFH
AIN0 ~ AIN3
I
I
A/D converter high analog reference voltage.
Analog signal input pins for ADC converter.
Table 1-3. Pin Description
PIN CIRCUIT DIAGRAMS
Port1, 4, 5 structure
Port0 structure
PUR
PUR
PnM
PnM
Pin
Latch
Int. bus
Pin
Int. bus
PnM
Figure 1-2. Pin Circuit Diagram
ꢀ
Note: All of the latch output circuits are push-pull structures.
SONiX TECHNOLOGY CO., LTD
Page 15
Revision 0.5
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