
MB90880 Series
9
(Continued)
Pin no.
Pin
name
I/O
circuit
type*
3
Function
LQFP *
1
QFP *
2
20
22
P46
E
General-purpose I/O port
A14
Serves as an external address pin in non-multiplex mode.
UO4/
(SDA4)
Multi-function serial output pin
21
23
P47
E
General-purpose I/O port
A15
Serves as an external address pin in non-multiplex mode.
UCK4/
(SCL4)
Multi-function serial clock I/O pin
22
24
P90
H
General-purpose I/O port
CS0
Chip select 0
AN8
Analog input pin
23
25
P91
H
General-purpose I/O port
CS1
Chip select 1
AN9
Analog input pin
24
26
P92
H
General-purpose I/O port
CS2
Chip select 2
AN10
Analog input pin
25
27
P93
H
General-purpose I/O port
CS3
Chip select 3
AN11
Analog input pin
26
28
P94
H
General-purpose I/O port
AN12
Analog input pin
27
29
P95
K
General-purpose I/O port
AN13
Analog input pin
(UI3)
Multi-function serial input pin (when set by P9FSR register)
28
30
P96
K
General-purpose I/O port
AN14
Analog input pin
(UO3)/
(SDA3)
Multi-function serial output pin (when set by P9FSR register)
29
31
P97
K
General-purpose I/O port
AN15
Analog input pin
(UCK3)/
(SCL3)
Multi-function serial clock I/O pin (when set by P9FSR register)
30
32
AVCC
-
A/D converter power supply pin
31
33
AVRH
-
A/D converter external reference power supply pin
32
34
P70
H
General-purpose I/O port
AN16
Analog input pin