SN8P1829
8-Bit MCU build-in 12-bit ADC + PGIA + Charge-pump Reg 128 dots LCD driver
SONiX TECHNOLOGY CO., LTD
Page 10
Version 1.0
PIN DESCRIPTIONS
PIN NAME
TYPE
DESCRIPTION
VDD, VSS
P
Power supply input pins for digital circuit.
VLCD
P
Power supply of COM0 ~ COM3, SEG0 ~SEG31.
AVDDR
P
Regulator power output pin, Voltage=3.8V Maximum output current=5mA.
AGND
P
Regulator Analog Ground.
AVDDCP
P
Charge Pump Voltage output. ( connect a 2.2uF or higher capacitor to ground)
RST
I
System reset input pin. Schmitt trigger structure, active “low”, normal stay to “high”.
XIN, XOUT
I, O
External oscillator pins. RC mode from XIN.
LXIN, LXOUT
I, O
Low speed (32768 Hz) oscillator pins. RC mode from LXIN.
P0.0 / INT0
I
Port 0.0 and shared with INT0 trigger pin. (Schmitt trigger) / Built-in pull-up resisters.
P0.1 / INT1
I
Port 0.1 and shared with INT1 trigger pin. (Schmitt trigger) / Built-in pull-up resisters.
P1.0~P1.3
I/O
Port 1.0~P1.3 bi-direction pins / Built-in pull-up resisters.
P5.0 / SCK
I/O
Port 5.0 bi-direction pin and SIO’s clock input/output / Built-in pull-up resisters.
P5.1 / SI
I/O
Port 5.1 bi-direction pin and SIO’s data input / Built-in pull-up resisters.
P5.2 / SO
I/O
Port 5.2 bi-direction pin and SIO’s data output / Built-in pull-up resisters.
P5.3 / BZ1 / PWM1
I/O
Port 5.3 bi-direction pin, TC1 ÷ 2 signal output pin 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 or PWM0 output pin.
Built-in pull-up resisters.
P2.0 ~ P2.7
I
Port 2.0 ~ Port 2.7 input pins with pull-up register and shared with LCD’s
SEG24~SEG31.
AIN0 ~ AIN3
I
Analog signal input pins for ADC converter.
COM0 ~ COM3
O
LCD driver common pins.
SEG0 ~ SEG31
O
LCD driver segment pins.
AvrefH, AverfL
I
ADC’s reference high / low voltage input pins.
OP1IN+, OP1IN-
I
Operational Amplifier 1 Input Channels
OPOUT1
O
Operational Amplifier 1 Output Channel
OP2IN+, OP2IN-
I
Operational Amplifier 2 Input Channels
OPOUT2
O
Operational Amplifier 2 Output Channel
, PGIAIN-
I
PGIA Input Channels
PGIAOUT
O
PGIA Output Channel
PGIABIAS
I
PGIA Bias Voltage input
C+
A
Positive capacitor terminal for charge pump regulator
C-
A
Negative capacitor terminal for charge pump regulator
Table 1-2 SN8P1829 pin description