SN8A1702AX datasheet(15/112 Pages) SONIX

15 / 112 page

Preliminary

SN8P1702A/SN8P1703A

8-bit micro-controller build-in 12-bit ADC

SONiX TECHNOLOGY CO., LTD

Page 15

Revision 0.5

PIN DESCRIPTIONS

PIN NAME

TYPE

DESCRIPTION

VDD, VSS

Power supply input pins for digital circuit.

RST

System reset input pin. Schmitt trigger structure, active “low”, normal stay to “high”.

XIN, XOUT

I, O

External oscillator pins. RC mode from XIN.

P0.0 / INT0

Port 0.0 and shared with INT0 trigger pin (Schmitt trigger) / Built-in pull-up resisters.

P1.0 ~ P1.1

I/O

Port 1.0~Port 1.1 bi-direction pins / Built-in pull-up resisters.

P4.0 ~ P4.3

I/O

Port 4.0~Port 4.3 bi-direction pins / Built-in pull-up resisters.

P5.0~P5.2, P5.5

I/O

Port 5.0~Port 5.2, P5.5 bi-direction pins / Built-in pull-up resisters.

P5.3 / BZ1 / PWM1

I/O

Port 5.3 bi-direction pin, TC1÷2 signal output pin for buzzer or PWM1 output pin.

Built-in pull-up resisters.

P5.4 / BZ0 / PWM0

I/O

Port 5.4 bi-direction pin, TC0÷2 signal output pin for buzzer or PWM0 output pin.

Built-in pull-up resisters.

AVREFH

A/D converter high analog reference voltage.

AIN0 ~ AIN3

Analog signal input pins for ADC converter.

Table 1-3.

Pin Description

PIN CIRCUIT DIAGRAMS

Figure 1-2. Pin Circuit Diagram

Note: All of the latch output circuits are push-pull structures.

Port0 structure

PUR

Int. bus

PUR

PnM

Int. bus

PnM

Latch

Port1, 4, 5 structure

PnM

Port0 structure

PUR

Int. bus

PUR

PnM

Int. bus

PnM

Latch

Port1, 4, 5 structure

PnM

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