LC87F2708A

No.A1335-7/21

Pin Description

Pin Name

I/O

Description

Option

VSS1

-

- power supply pin

No

VDD1

-

+ power supply pin

No

PORT1

P10 to P16

I/O

• 7-bit I/O port

• I/O specifiable in 1-bit units

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

• Multiplexed pins

P10: SIO7 data output

P11: SIO7 data input/bus I/O/high-speed pulse width/period counter 2 input

P12: SIO7 clock I/O

P13: Timer 1 PWML output

P14: Timer 1 PWMH output

P10, P11, P14, P15:

INTE input/HOLD release input/timer 1 event input/timer 0L capture input/

timer 0H capture input

P12, P13, P16:

INTF input/HOLD release input/timer 1 event input/timer 0L capture input/

timer 0H capture input

AD converter input port: AN0 to AN6(P10 to P16)

Analog comparator input port 0: IN0+, IN0-(P11, P12)

Analog comparator input port 1: IN1+, IN1-(P15, P16)

On-chip debugger pin 1: DBGP02 (P10)

On-chip debugger pin 3: DBGP20 to DBGP22 (P13 to P15)

• Interrupt acknowledge type

Rising

Falling

Rising &

Falling

H level

L level

INTE

enable

enable

enable

disable

disable

INTF

enable

enable

enable

disable

disable

Yes

PORT3

P30 to P33

I/O

• 4-bit I/O port

• I/O specifiable in 1-bit units

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

• Multiplexed pins

P30: INTA input/HOLD release input/timer 0L capture input/high-speed pulse width/

period counter 1 input

P31: INTB input/HOLD release input/timer 0H capture input/high-speed pulse width/

period counter 2 input

P32: INTC input/HOLD release input/timer 0 event input/timer 0L capture input/

analog comparator output

P33: INTD input/HOLD release input/timer 0 event input/timer 0H capture input/

high-speed PWM output

On-chip debugger pin 1: DBGPX0 to DBGP01 (P30 to P31)

On-chip debugger pin 2: DBGPX0 to DBGP12 (P30, P32 to P33)

• Interrupt acknowledge type

Rising

Falling

Rising &

Falling

H level

L level

INTA

enable

enable

disable

enable

enable

INTB

enable

enable

disable

enable

enable

INTC

enable

enable

enable

disable

disable

INTD

enable

enable

enable

disable

disable

Yes

RES

I/O

External reset input/internal reset output

No