
MB90800 Series
10
DS07-13733-5E
(Continued)
* : Refer to “
■ I/O CIRCUIT TYPE” for details on the I/O circuit types.
Pin No.
Pin Name
I/O
Circuit
Type*
Status/function
at reset
Function
49
SDA
H
Port input
(High-Z)
Data input/output pin of I2C Interface.
This pin is enabled when the I2C interface is operated.
While the I2C interface is running, the port must be set
for input use.
P74
General purpose input/output port.
(N-ch open-drain, withstand voltage of 5 V.)
SC2
Serial clock input pin of serial I/O ch.2.
Valid when serial clock output of serial I/O ch.2 is
enabled.
50
SCL
H
Clock input/output pin of I2C Interface.
This pin is enabled when the I2C interface is operated.
While the I2C interface is running, the port must be set
for input use.
P75
General purpose input/output port.
(N-ch open-drain, withstand voltage of 5 V.)
SO2
Serial data output pin of serial I/O ch.2.
Valid when serial data output of serial I/O ch.2 is
enabled.
55 to 57
V0 to V2
J
LCD drive power
supply input
LCD controller/driver.
Reference power terminals of LCD controller/driver.
P80 to P82
General purpose input/output port.
59, 60
COM0,
COM1
D
LCD COM
output
A common output terminal of the LCD controller/
driver.
61, 62
P83, P84
E
Port input
(High-Z)
General purpose input/output port.
COM2,
COM3
A common output terminal of the LCD controller/
driver.
32
AVCC
C
Power supply
A/D converter exclusive power supply input pin.
35
AVSS
C
A/D converter-exclusive GND power supply pin.
58
V3
J
LCD controller/driver
Reference power terminals of LCD controller/driver.
15, 65, 90
VCC
These are power supply input pins.
16, 44,
66, 91
VSS
GND power supply pin.