LC87F7DJ2C

No.A1872-10/26

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 1-bit units

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

• Input for HOLD release

• Input for port 0 interrupt

• Shared pins

P03: INT6 input

P04: INT7 input

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

P06: Timer 6 toggle output

P07: Timer 7 toggle output

On chip debugger pins: DBGP0 to DBGP2(P00 to P02)

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.

• Shared pins

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 3

• 6-bit I/O port

• Segment output for LCD

• I/O specifiable in 1-bit units

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

• Shared pins

P30 to P33: INT4 input/HOLD release input/timer 1 event input/timer 0L capture input/

timer 0H capture input

P34 to P35: INT5 input/HOLD release input/timer 1 event input/timer 0L capture input/

timer 0H capture input

P30: PWM4 output/INT6 input/timer 0L capture 1 input

P31: PWM5 output

P32: UART1 transmit

P33: UART1 receive

P34: UART2 transmit/INT7 input/timer 0H capture 1 input

P35: UART2 receive

Interrupt acknowledge type

Rising

Falling

Rising &

Falling

H level

L level

INT4

INT5

INT6

INT7

enable

enable

enable

enable

enable

enable

enable

enable

enable

enable

enable

enable

disable

disable

disable

disable

disable

disable

disable

disable

P30 to P35

I/O

Yes

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