EM78P520N datasheet(13/124 Pages) EMC

13 / 124 page

EM78P520N

8-Bit Microprocessor with OTP ROM

Product Specification (V1.4) 04.08.2016

 5

(This specification is subject to change without prior notice)

(Continuation)

Name

Function

Input

Type

Output

Type

Description

P83/COM7/INT9/

AD7

P83

CMOS

Bidirectional I/O pin with programmable pull-high and

open-drain.

COM7

LCD Common 7 output

INT9

External interrupt pin

AD7

ADC Input 7

P84/VREF

P84

CMOS

Bidirectional I/O pin with programmable pull-high and

open-drain.

VREF

Voltage reference for ADC

P85/COM6/AD6

P85

CMOS

Bidirectional I/O pin with programmable pull-high and

open-drain.

COM6

LCD Common 6 output

AD6

ADC Input 6

P86/COM5/AD5

P86

CMOS

Bidirectional I/O pin with programmable pull-high and

open-drain.

COM5

LCD Common 5 output

AD5

ADC Input 5

P87/COM4/AD4

P87

CMOS

Bidirectional I/O pin with programmable pull-high and

open-drain.

COM4

LCD Common 4 output

AD4

ADC Input 4

P90/AD3/PWM2

P90

CMOS

Bidirectional I/O pin with programmable pull-high, open-drain

and LED drive.

AD3

ADC Input 3

PWM2

CMOS

Timer 2 PWM mode

P91/AD2/BUZ

P91

CMOS

Bidirectional I/O pin with programmable pull-high, open-drain

and LED drive.

AD2

ADC Input 2

BUZ

CMOS

Buzzer Timer output

P92/AD1

P92

CMOS

Bidirectional I/O pin with programmable pull-high, open-drain

and LED drive.

AD1

ADC Input 1

P93/AD0

P93

CMOS

Bidirectional I/O pin with programmable pull-high, open-drain

and LED drive.

AD0

ADC Input 0

P94/COM3

P94

CMOS

Bidirectional I/O pin with programmable pull-high, open-drain

and LED drive.

COM3

LCD Common 3 output

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