HT47R20A-1 View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT47R20A-1

R-F Type 8-Bit MCU

Holtek Semiconductor 

Block Diagram

P B 0 /IN T

P ro g ra m

EPRO M

P ro g ra m

C o u n te r

STAC K

In te rru p t

C ir c u it

IN T C

In s tr u c tio n

R e g is te r

MP

M

U

D ATA

M e m o ry

X

In s tr u c tio n

D ecoder

T im in g

G e n e ra to r

O SC2

O SC4

C1

C2

O SC1

O SC3

RES

VDD

VSS

H a lv e

V o lta g e

M UX

A LU

S h ifte r

STATU S

BP

ACC

LC D

M e m o ry

L C D D r iv e r

V 1 V 2 V LC D C O M 0 ~ C O M 3 / S E G 0 ~

C O M 2 S E G 19 S E G 18

HT47R20A-1/HT47C20-1

T im e r A

S y s te m C lo c k

M

T1

U

R T C O u tp u t

X

P B 2 /T M R

O v e r flo w

PFD

T im e r B

A /D C lo c k

R C T ype

A /D C o n v e rte r

P A 3 /P F D

IN 0

CS0

RS0

C R T0

R T0

IN 1

CS1

RS1

R T1

R TC

W DT

T im e B a s e

S Y S C L K /4

M

U

R TC O SC

X

W DT O SC

P o rt B

PB

P o rt A

PA

H A L T E N /D IS

P B 0 /IN T

PB1

P B 2 /T M R

PB3

P A 0 /B Z

P A 1 /B Z

P A 2 /IR

P A 3 /P F D

P A 4~P A 7

O SC3

O SC4

L V D /L V R

Rev. 1.80

2

June 23, 2008

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