HT82K94E_07 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT82K94E_07

USB Multimedia Keyboard Encoder 8-Bit MCU

Holtek Semiconductor 

Block Diagram

U S B D + /C L K U S B D -/D A T A V 3 3 O

P ro g ra m

ROM

P ro g ra m

C o u n te r

U S B 1 .1

PS2

BP

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

X

D ATA

M e m o ry

In s tr u c tio n

D ecoder

T im in g

G e n e ra to r

O SC2

O SC1

RES

VDD

VSS

M UX

A LU

S h ifte r

STATU S

ACC

HT82K94E/HT82K94A

TM R 1C

M

U

TM R 1

X

fS Y S /4

P A 7 /T M R 1

M

fS Y S /4

TM R 0

U

X

P D 4 /T M R 0

TM R 0C

E N /D IS

W D TS

M

W D T P r e s c a le r

W DT

U

X

S Y S C L K /4

W DT O SC

PAC PO RT A

PA

PBC PO RT B

PB

PCC PO RT C

PC

PDC

PO RT D

PD

PEC

PO RT E

PE

P A 0~P A 6

P A 7 /T M R 1

P B 0~P B 7

P C 0~P C 7

P D 0~P D 3

P D 4 /T M R 0

P D 5~P D 7

P E 0~P E 7

Rev. 1.50

2

October 11, 2007

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