HT47C20 datasheet(2/56 Pages) HOLTEK

Teilenummer	HT47C20

Bauteilbeschribung	8-Bit Microcontroller

PDF	56 Pages

Scroll/Zoom	100%

Hersteller	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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2 / 56 page

Block Diagram

HT47C20

January 18, 2000

PB 0 / I N T

P r ogr am

C ount e r

P r ogr am

RO M

I n st r u ct i o n

R egi s t er

I n st r u ct i o n

D e c oder

Ti m i n g

G ene r a t o r

OS C 2

OS C 1

RES

VD D

VS S

I n t e r r upt

Ci r c u i t

IN T C

MU X

DA T A

Me m o r y

AL U

S h i fte r

ST AT U S

AC C

Po r t A

PA0 / B Z

Ti m e r A

Sy s t e m C l o c k

SY S C L K / 4

Po r t B

PB 2 / T M R

WD T O S C

PA1 / B Z

PA2 / I R

PA 3 / PF D

PA 4 ~ P A 7

PB0 / I N T

PB 1

PB 3

RT C O S C

OS C 3

OS C 4

RT C

ST AC K

LC D

Me m o r y

L C D Dr i v e r

CO M 0 ~

CO M 2

CO M 3 /

SEG 1 9

SEG 0 ~

SEG 1 8

Ti m e B a s e

WD T

Ti m e r B

RT C O u t p u t

PB 2 / T M R

PF D

PA 3 / PF D

O v er f l ow

RC T y p e

A / D C onv er t e r

A / D Cl o c k

IN 0

CS 0

RS 0

CRT 0

RT 0

IN 1

CS 1

RS 1

RT 1

Ha l v e

V o l t age

V1 V2 V3

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