MB90246A Series
(Continued)
Pin no.
Circuit
type
Pin name
PA3
Function
LQFP*
67
E
E
E
D
This is a general-purpose I/O port.
SID2
This is a data input pin of I/O simple serial interface 2.
Because this input is used as required when is performing input
operations, and it is I/O simple serial interface 2 necessarey to stop
outputs by other functions unless such outputs are made
intentionally.
68
69
PA4
This is a general-purpose I/O port.
This function becomes valid when data output from I/O simple
serial interface 2 is disabled.
SOD2
PA5
This is a data output pin of I/O simple serial interface 2.
This function becomes valid when data output from I/O simple
serial interface 2 is enabled.
This is a general-purpose I/O port.
This function becomes valid when clock output from I/O simple
serial interface 2 is disabled.
SCK2
This is clock output pin of I/O simple serial interface 2.
This function becomes valid when clock output from I/O simple
serial interface 2 is enabled.
83 to 90 D00 to D07
This is an I/O pin for the lower 8-bit of the external data bus.
This is power supply to the digital circuit.
21,
82
VCC
Power
supply
9,
40,
79
VSS
Power
supply
This is a ground level of the digital circuit.
32
AVCC
Power
supply
This is power supply to the analog circuit.
Make sure to turn on/turn off this power supply with a voltage
exceeding AVCC applied to VCC.
33
AVRH
Power
supply
This is a reference voltage input to the A/D converter.
Make sure to turn on/turn off this power supply with a voltage
exceeding AVRH applied to AVCC.
34
35
45
46
AVRL
AVSS
Power
supply
This is a reference voltage input to the A/D converter.
Power
supply
This is a ground level of the analog circuit.
DVRH
DVRL
Power
supply
This is an external reference power supply pin for the D/A
converter.
Power
supply
This is an external reference power supply pin for the D/A
converter.
* : FPT-100P-M05
11
FUJITSU [ FUJITSU ]
