HMS81C2020ALQ 데이터 시트보기 (PDF) - Unspecified

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HMS81C2020ALQ

CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver

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HMS81C2012A/2020A

PIN NAME

VDD

VSS

RA (Vdisp)

RESET

XIN

XOUT

SXIN(R74)

SXOUT(R75)

R00 (INT0)

R01 (INT1)

R02 (EC0)

R03 (BUZO)

R04~R07

R10~R17

R20~R27

R30~R35

R40 (T0O)

R41~R43

R50~R52

R53 (SCLK)

R54 (SIN)

R55 (SOUT)

R56 (PWM1O/T1O)

R57

R60~R67 (AN0~AN7)

R70~R73

(AN8~AN11)

AVDD

AVSS

VDD

VSS

In/Out

-

-

I(I)

I

I

O

I

O

I/O (I)

I/O (I)

I/O (I)

I/O (O)

I/O

I/O

I/O

I/O

I/O (O)

I/O

I/O

I/O (I/O)

I/O (I)

I/O (O)

Basic

Supply voltage

Circuit ground

1-bit high-voltage Input only port

Reset signal input

Oscillation input

Oscillation output

Sub Oscillation input

Sub Oscillation output

8-bit high-voltage I/O ports

8-bit high-voltage I/O ports

8-bit high-voltage I/O ports

6-bit high-voltage I/O ports

4-bit general I/O ports

8-bit general I/O ports

I/O (O)

I/O

I/O (I)

8-bit general I/O ports

I/O (I) 4-bit general I/O ports

Function

Alternate

High-voltage input power supply pin

General I/O ports

External interrupt 0 input

External interrupt 1 input

Timer/Counter 0 external input

Buzzer driving output

Timer/Counter 0 output

Serial clock source

Serial data input

Serial data output

PWM 1 pulse output /Timer/Counter 1 out-

put

Analog voltage input

-

Supply voltage input pin for ADC

-

Ground level input pin for ADC

-

Supply voltage

-

Circuit ground

Table 5-1 HMS81C2020A Port Function Description

10

SEP. 2004 Ver 2.00

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