LC87F0K08A

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9

Pin Function Chart

Pin Name

I/O

Description

Option

VSS1



 power supply pin

No

VDD1



power supply pin

No

Port 0

I/O

 8-bit I/O port

 I/O specifiable in 1 bit units

 Pull-up resistors can be turned on and off in 1 bit units.

 Pin functions

P04: INT4 input / HOLD release input / Timer 1 event input

/ Timer 0L capture input / Timer 0H capture input

P05: SIO1 data I/O / Bus I-O / UART transmit / System clock output

P06: SIO1 clock I/O / UART receive / Timer 6 toggle output

P07: INT3 input (with noise filter) / Timer 0 event input

Timer 0H capture input / Timer 7 toggle output

/ PPGO output (for monitor)

P00(AN0) to P04(AN4): AD convertor input port

Interrupt acknowledge type

Rising

Falling

Rising & Falling

H level

L level

INT3

INT4













X

X

X

X

Yes

P00 to P07

Port 3

I/O

 1-bit I/O port

 I/O specifiable in 1 bit units

 Pull-up resistors can be turned on and off in 1 bit units.

 Pin functions

P30: Buzzer output / Comparator output

Yes

P30

AMP1I

I

AMP1 input pin

No

AMP2O

O

AMP2 output pin

No

CMP1IA

I

CMP1 (

) input pin

No

CMP1IB

I

CMP1 (+) input pin

No

CMP2I

I

CMP2 (+) , CMP7 (+) input pin

No

CMP4I

I

CMP4 (+) input pin

No

CMP45I

I

CMP4 (

), CMP5 (+) input pin

No

CMP5I

I

CMP5 (

) input pin

No

CMP6I

I

CMP6(+) input pin

No

PPGO

O

PPG output port

Yes

RES#

I/O

External reset Input / internal reset output pin

No

OWP0

I/O

Debugger-dedicated pin

No

VDC

O

Regulator output pin

No

Port Output Types

The table below lists the types of port outputs and the presence/absence of a pull-up resistor.

Data can be read into any input port even if it is in the output mode.

Port Name

Option Selected

in Units of

Option Type

Output Type

Pull-up Resistor

P00 to P07

1 bit

1

CMOS

Programmable

2

N-channel open drain

Programmable

P30

1 bit

1

CMOS

Programmable

2

N-channel open drain

Programmable

PPGO



1

CMOS

No

2

N-channel open drain

No