LC865632/28/24/20/16/12/08A

No.6698-7/20

Pin Description

Pin name

I/O

Function description

Option

VSS

-

Power pin (–)

-

VDD

-

Power pin (+)

-

VDDVPP

*

-

Power pin (+)

-

PORT0

P00 - P07

I/O

• 8-bit input/output port

• Input for port 0 interrupt

• Input/output in nibble units

• Input for HOLD release

• Pull-up resistor :

Provided/Not provided

• Output form :

CMOS/N-channel open drain

PORT1

P10 - P17

I/O

• 8-bit input/output port

• Input/output can be specified in bit unit

• Other pin functions

P10 SIO0 data output

P11 SIO0 data input/bus input/output

P12 SIO0 clock input/output

P13 SIO1 data output

P14 SIO1 data input/bus input/output

P15 SIO1 clock input/output

P16 Buzzer output

P17 Timer1 output (PWM output)

• Output form :

CMOS/N-channel open drain

PORT2

P20 - P27

I/O

• 8-bit input/output port

• Input/output in bit unit

• Output form :

CMOS/N-channel open drain

PORT3

P30 - P37

I/O

• 8-bit input/output port

• Input/output in bit unit

• 15V withstand at N-channel open drain

output

• Pull-up resistor :

Provided/Not provided

• Output form :

CMOS/N-channel open drain

PORT4

P40 - P47

I/O

• 8-bit input/output port

• Input/output in bit unit

• 15V withstand at N-channel open drain

output

• Pull-up resistor :

Provided/Not provided

• Output form :

CMOS/N-channel open drain

PORT5

P50, P51

I/O

• 2-bit input/output port

• Input/output in bit unit

• 15V withstand at N-channel open drain

output

• Pull-up resistor :

Provided/Not provided

• Output form :

CMOS/N-channel open drain

* Connect like the following figure to reduce noise into a VDD terminal.

Short-circuit the VDD terminal to the VDDVPP terminal.

Short-circuit the VSS terminal to the VSS terminal.

LSI

VDD

VDDVPP

VSS

VSS

Power

Supply