Holtek HT48R30A-1 User Manual

Oscillator
The system oscillator pins OSC1 and OSC2 are pin-shared with PC3 and PC4 on the
HT48R10A-1/HT48C10-1 and pins PG1 and PG2 on the HT48R30A-1/HT48C30-1 and
HT48R50A-1/HT48C50-1. On the HT48R70A-1/HT48C70-1 and HT48RU80/HT48CU80, the os
-
cillator pins are not pin-shared. The pin-shared functions are selected via configuration option. If
chosen to function as I/O pins, then full pull-high options remain.
38
I/O Type MCU
M
U
X
W a k e - u p O p t i o n
S y s t e m W a k e - u p
R e a d D a t a R e g i s t e r
D
Q
C K
S
D
Q
C K
S
C o n t r o l B i t
P u l l - H i g h
O p t i o n
D a t a B u s
W r i t e C o n t r o l R e g i s t e r
C h i p R e s e t
R e a d C o n t r o l R e g i s t e r
W r i t e D a t a R e g i s t e r
D a t a B i t
P A 0 ~ P A 7
Q
Q
S c h m i t t T r i g g e r I n p u t O p t i o n
W e a k
P u l l - u p
V
D D
PA Input/Output Ports
V
D D
M
U
X
M
U
X
R e a d D a t a R e g i s t e r
D
Q
C K
S
D
Q
C K
S
C o n t r o l B i t
P u l l - H i g h
O p t i o n
D a t a B u s
W r i t e C o n t r o l R e g i s t e r
C h i p R e s e t
R e a d C o n t r o l R e g i s t e r
W r i t e D a t a R e g i s t e r
D a t a B i t
P B 0 D a t a B i t
B Z ( P B 1 o n l y )
B Z ( P B 0 o n l y )
B Z O p t i o n
P B 0 / B Z
P B 1 / B Z
W e a k
P u l l - u p
Q
Q
PB0~PB1 Input/Output Ports

Holtek HT48R30A-1 Specifications

General

Brand	Holtek
Model	HT48R30A-1
Category	Microcontrollers
Language	English