HT48R01A Datasheet, PDF (16/49 Pages) Holtek Semiconductor Inc – Small Package I/O Type 8-Bit OTP MCU

D a ta B u s
W r ite C o n tr o l R e g is te r
C h ip R e s e t
R e a d C o n tr o l R e g is te r
W r ite D a ta R e g is te r
B uzzer
W a v e fo rm
R e a d D a ta R e g is te r
S y s te m W a k e -u p
IN T ( P A 3 o n ly )
T M R 0 ( P A 2 o n ly )
P A P U 4~P A P U 0
C o n tr o l B it
DQ
CK Q
S
V DD
W eak
P u ll- u p
D a ta B it
DQ
CK Q
S
M
U
X
M
U
X
B uzzer
P A W K 4~P A W K 0
PA0~PA4 Input/Output Ports
HT48R01A
P A 0 /B Z
P A 1 /B Z
P A 2 /T M R 0
P A 3 /IN T
PA4
D a ta B u s
W r ite C o n tr o l R e g is te r
C h ip R e s e t
R e a d C o n tr o l R e g is te r
W r ite D a ta R e g is te r
R e a d D a ta R e g is te r
S y s te m W a k e -u p
C o n tr o l B it
DQ
CK Q
S
P A P U 5,P A P U 6
V DD
W eak
P u ll- u p
D a ta B it
DQ
CK Q
S
O s c illa to r
C o n fig u r a tio n
O p tio n s
M
U
S c h m itt T r ig g e r In p u t
X
P A W K 5 /P A W K 6
PA5~PA6 Input/Output Ports
O s c illa to r
C ir c u it
P A 5 /O S C 2
P A 6 /O S C 1
S y s te m W a k e -u p
R e a d D a ta
D a ta B u s
T o R e s e t C ir c u it
R e s e t C o n fig u r a tio n O p tio n
PA7 Input Port
PAW K7
P A 7 /R E S
Rev. 1.10
16
August 4, 2008