LC875832A/24A/16A

No.8300-9/23

Pin Description

Pin Name

I/O

Description

Option

VSS1

VSS2

VSS3

-

-Power supply pin

No

VDD1

VDD2

VDD3

-

+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

• Shared pins

P05 : System clock output (system clock / can selected from sub clock)

P06 : Timer 6 toggle output

P07 : Timer 7 toggle output

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

P16 : Timer 1PWML output

P17 : Timer 1PWMH output/beeper output

Yes

Port 2

• 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

P20 : UART transmit

P21 : UART receive

P20 to P23 : INT4 input/HOLD reset input/timer 1 event input/timer 0L capture input/

timer 0H capture input

P24 to P27 : INT5 input/HOLD reset input/timer 1 event input/timer 0L capture input/

timer 0H capture input

Interrupt acknowledge type

Rising

Falling

Rising &

Falling

H level

L level

INT4

INT5

enable

enable

enable

enable

enable

enable

disable

disable

disable

disable

P20 to P27

I/O

Yes

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