LC872G08A/06A/04A

No.A1400-8/27

Pin Description

Pin Name

I/O

Description

Option

VSS1

-

- Power supply pin

No

VDD1

-

+ Power supply pin

No

Port 0

P00 to P07

I/O

• 8-bit I/O port

• I/O specifiable in 4-bit units

• Pull-up resistors can be turned on and off in 4-bit units.

• HOLD reset input

• Port 0 interrupt input

• Pin functions

P05: System clock output

P06: Timer 6 toggle output

P07: Timer 7 toggle output

P00(AN0) to P06(AN6): AD converter input

Yes

Port 1

P10 to P17

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

P10: SIO0 data output

P11: SIO0 data input/bus I/O

P12: SIO0 clock I/O

P13: SIO1 data output

P14: SIO1 data input / bus I/O

P15: SIO1 clock I/O / INT3 input (with noise filter) / timer 0 event input / timer 0H capture input

P16: Timer 1PWML output / INT2 input/HOLD reset input/timer 0 event input / timer 0L capture

input

P17: Timer 1PWMH output / beeper output / INT1 input / HOLD reset input / timer 0H capture

input

Interrupt acknowledge type

Rising

Falling

Rising &

Falling

H level

L level

INT1

INT2

INT3

enable

enable

enable

enable

enable

enable

disable

enable

enable

enable

disable

disable

enable

disable

disable

Yes

Port 2

• 2-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

P20: UART transmit

P21: UART receive

P20 to P21: INT4 input / HOLD reset input / timer 1 event input / timer 0L capture input / timer

0H capture input

Interrupt acknowledge types

Rising

Falling

Rising &

Falling

H level

L level

INT4

enable

enable

enable

disable

disable

P20 to P21

I/O

Yes

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