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No. 5003-5/22
LC66556B, 66558B
Pin
I/O
Function
Output drive type
Option
Value on reset
P60/SI1
P61/SO1
P62/SCK1
P63/PIN1
P70
P71
P72
P73
P80
P81
P82
P83
P90/INT2
P91/INT3
P92/INT4
P93/INT5
PA0
PA1
PA2
PA3
PB0
PB1
PB2
PB3
PC0
PC1
PC2/VREF0
PC3/VREF1
PD0/CMP0
PD1/CMP1
PD2/CMP2
PD3/CMP3
I/O
O
O
I/O
O
O
I/O
I
I/O ports P60 to P63
Input or output in 4-bit or 1-bit
units
P60 is also used as the serial
input SI1 pin.
P61 is also used as the serial
output SO1 pin.
P62 is also used as the serial
clock SCK1 pin.
P63 is also used as the timer 1
event counter input.
Dedicated output ports P70 to
P73
Output in 4-bit or 1-bit units
The latched output data can be
read with input instructions.
Dedicated output ports P80 to
P83
Output in 4-bit or 1-bit units
The latched output data can be
read with input instructions.
A p-channel OD output option is
available.
I/O ports P90 to P93
Input or output in 4-bit or 1-bit
units
P90 is also used as the INT2
interrupt request.
P91 is also used as the INT3
interrupt request.
P92 is also used as the INT4
interrupt request.
P93 is also used as the INT5
interrupt request.
Dedicated output ports PA0 to PA3
Output in 4-bit or 1-bit units
The latched output data can be
read with input instructions.
Dedicated output ports PB0 to
PB3
Output in 4-bit or 1-bit units
The latched output data can be
read with input instructions.
I/O ports PC0 to PC3
Input or output in 4-bit or 1-bit
units
PC2 is also used as the VREF0
comparator comparison voltage
pin.
PC3 is also used as the VREF1
comparator comparison voltage
pin.
Dedicated input ports PD0 to PD3
Can be switched to function as
comparator inputs under
software control.
The comparison voltage for PD0
is VREF0.
The comparison voltage for PD1
to PD3 is VREF1.
Comparison can be specified in
units of PD0, PD1, (PD2, PD3).
P-channel: CMOS type
N-channel: small sink current
type
+15 V withstand voltage in N-
channel OD
P-channel: pull-up MOS type
N-channel: intermediate sink
current type
+15 V withstand voltage in N-
channel OD
P-channel: CMOS type
N-channel: small sink current
type
P-channel: CMOS type
N-channel: small sink current
type
P-channel: pull-up MOS type
N-channel: intermediate sink
current type
P-channel: CMOS type
N-channel: small sink current
type
CMOS or N-channel
OD output
With pull-up MOS
transistor or N-channel
OD output
CMOS or P-channel
OD output
The output level at
reset
CMOS or N-channel
OD output
With pull-up MOS or
N-channel OD output
With pull-up MOS or
N-channel OD output
CMOS or N-channel
OD output
High
High
High or low (option)
High
High
High
High
Normal input
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