LC865020B 查看數據表（PDF） - SANYO -> Panasonic

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LC865020B

8-Bit Single-Chip Microcontroller

SANYO -> Panasonic 

LC865020B/16B/12B/08B

Pin name I/O

Function description

Option

PORT7

P70

I/O

P71 to P74 I

• 5-bit input port

• Other pin functions

P70: INT0 input / HOLD release

/ N-channel Tr. output for watchdog timer

P71: INT1 input / HOLD release input

P72: INT2 input / timer 0 event input

P73: INT3 input with noise filter/timer 0 event input

P74: XT1 input pin for 32.768 kHz crystal

oscillator

• Interrupt received form, vector address

Pull-up resistor :

Present / Not present

(P70,71,72,73)

* P74 does not have pull-up resistor option.

Rising Falling Rising

&

falling

High

level

Low Vector

level

INT0 Enable Enable Disable Enable Enable 03H

INT1 Enable Enable Disable Enable Enable 0BH

INT2 Enable Enable Enable Disable Disable 13H

INT3 Enable Enable Enable Disable Disable 1BH

PORT8

I

P80 to P87

• 8-bit input port

• Other function

AD input port (8 port pins)

RES

I Reset pin with pull-up resistor

TEST1

O • Test pin

Should be left open.

• Output fixed HIGH

XT1/P74

I • Input pin for 32.768 kHz crystal oscillator

• Other function

Input port P74

When not in use, connect to VDD.

XT2

O Output pin for 32.768 kHz crystal oscillator

When not in use, should be left open.

CF1

I Input pin for ceramic resonator oscillator

CF2

O Output pin for ceramic resonator oscillator

• All port options can be specified for each bit.

• State of pins at reset

Pin name

Input/output mode

Port 0

Ports 70, 71, 72, 73

Input

Ports 1, 2

Ports 3, 4, 5

Input

State of pull-up resistor specified at pull-up option

Fixed pull-up resistor exist

Programmable pull-up resistor OFF

No. 5650-9/21

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