
MB90F243H
10
Pin no.
Pin name
Circuit
type
Function
TQFP-80*
47
P74
G
General-purpose I/O port
This function is always valid.
SID1
SSI #1 data input pin
During SSI #1 input operations, these inputs may be used at
any time; therefore, it is necessary to stop output by other
functions on this pin, except when using them for output
deliberately.
48
P75
G
General-purpose I/O port
This function is valid when the SSI #1 data output is disabled.
SOD1
SSI #1 data output pin
This function is valid when the SSI #1 data output is disabled.
49,
50
P80,
P81
G
General-purpose I/O port
This function is always valid.
INT0,
INT1
DTP/external interrupt input pin
When external interrupts are enabled, these inputs may be
used at any time; therefore, it is necessary to stop output by
other functions on this pin, except when using them for output
deliberately.
51
P82
G
General-purpose I/O port
This function is always valid.
INT2
DTP/external interrupt input pin
When external interrupts are enabled, these inputs may be
used at any time; therefore, it is necessary to stop output by
other functions on this pin, except when using them for output
deliberately.
Because an input to this pin is clamped to Low when the CPU
stops, use INT0 or INT1 to wake up the system from the stop
mode.
ATG
8/10-bit A/D converter trigger input pin
When 8/10-bit A/D converter is waiting for activation, this input
may be used at any time; therefore, it is necessary to stop
output by other functions on this pin, except when using it for
output deliberately.
37,
38
OPEN
—
Open pins
No internal connections are made.
52
CLK
G
CLK output pin
64
VCC
Power
supply
Digital circuit power supply pin
9,
32,
61
VSS
Power
supply
Digital circuit power supply (GND) pin
26
AVCC
Power
supply
Analog circuit power supply pin
This power supply must only be turned on or off when electric
potential of AVCC or greater is applied to VCC.
*: FPT-80P-M15
(Continued)