HT46R232/HT46C232
Block Diagram
In te rru p t
C ir c u it
S T A C K
P ro g ra m
E P R O M
P ro g ra m
C o u n te r
IN T C
T M R 0 C
T M R 0
P F D 0
T M R 1 C
T M R 1
P F D 1
M
U
X
M
U
X
P r e s c a le r
T M R 0
T M R 1
f
S
Y S
f
S
Y S
/4
B P
In s tr u c tio n
R e g is te r
M P
M
U
X
W D T
D A T A
M e m o ry
M
U
f
S
X
Y S
/4
W D T O S C
P F 0 ~ P F 7
P F C
P F
P o rt F
In s tr u c tio n
D e c o d e r
A L U
T im in g
G e n e ra to r
M U X
P A 5
P W
P D C
M
P o rt D
S T A T U S
P D
P D 0 /P W M 0 ~ P D 3 /P W
P D 4 ~ P D 7
M 3
S h ifte r
P C C
P C
P o rt C
P C 0 ~ P C 7
8 -C h a n n e l
A /D C o n v e rte r
O S C 2
O S
R E
V D
V S
S
S
D
C 1
A C C
H A L T
L V R
E N /D IS
P B C
P B
P A C
P A
I
2
C B u s
S la v e M o d e
P o rt B
P B 0 /A N 0 ~ P B 7 /A N 7
P A
P A
P A
P A
P A
P A
0 ~
3 /
4
5 /
6 /
7 /
P A 2
P F D
IN T
S D A
S C L
P o rt A
Pin Assignment
P B 5 /A N 5
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
P B 4 /A N 4
P A 3 /P F D
P A 2
P A 1
P A 0
P B 3 /A N 3
P B 2 /A N 2
P B 1 /A N 1
P B 0 /A N 0
P B 5 /A N 5
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
P B 4 /A N 4
P A 3 /P F D
P A 2
P A 1
P A 0
P B 3 /A N 3
P B 2 /A N 2
P B 1 /A N 1
P B 0 /A N 0
V S S
P C 0
P C 1
P C 2
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
1 9
1 8
1 7
1 6
1 5
P B 6 /A N 6
P B 7 /A N 7
P A 4
P A 5 /IN T
P A 6 /S D A
P A 7 /S C L
O S C 2
O S C 1
V D D
R E S
P D 1 /P W M 1 /T M R 1
P D 0 /P W M 0
P C 4
P C 3
N C
P F 3
P F 2
P F 1
P D 7
P D 6
P D 5
P D 4
V S S
P F 0
T M R 0
P C 0
P C 1
P C 2
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
3 2
3 1
3 0
2 9
2 8
2 7
2 6
2 5
P B 6 /A N 6
P B 7 /A N 7
P A 4
P A 5 /IN T
P A 6 /S D A
P A 7 /S C L
P F 4
P F 5
P F 6
P F 7
O S C 2
O S C 1
V D D
R E S
T M R 1
P D 3 /P W M 3
P D 2 /P W M 2
P D 1 /P W M 1
P D 0 /P W M 0
P C 7
P C 6
P C 5
P C 4
P C 3
H T 4 6 R 2 3 2 /H T 4 6 C 2 3 2
2 8 S K D IP -A /S O P -A
H T 4 6 R 2 3 2 /H T 4 6 C 2 3 2
4 8 S S O P -A
Rev. 1.40
2
November 23, 2005
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
