HT66F03T3/HT68F03T3
8-Bit Flash MCU with RF Transmitter
Block Diagram
The following block diagram illustrates the dual-chip structure of the devices, where an individual
MCU and RF Transmitter devices are combined into a single package.
V
D
D
P
A
4
/
T
C
K
0
C
/
T
R
P
E
1
F
/
A
D
V
O
D
U
D
T
P
A
0
/
C
+
/
A
N
0
C
R
E
F
P
X
X
A
O
I
O
U
P
A
1
/
C
-
/
A
N
1
/
V
R
E
F
R
F
M
o
d
u
l
e
U
T
P
A
2
/
C
X
/
[
T
P
0
]
/
A
N
2
H
T
6
6
F
0
3
D
I
N
N
P
P
A
A
3
6
/
/
I
[
N
T
T
/
K
T
C
K
1
/
T
P
0
/
A
N
3
H
T
6
8
F
0
3
P
A
5
/
[
T
P
0
]
/
O
S
C
2
E
N
C
0
]
/
[
T
P
1
]
/
O
S
C
1
P
A
I
7
N
/
T
[
]
/
[
T
C
K
0
]
/
[
T
C
K
1
]
/
[
T
P
1
]
/
R
E
S
V
S
S
A
V
S
S
Internal Chip Interconnection Diagram
Note: The AN0~AN3 and VREF shared-pin functions only exist in the HT66F03T3 device.
L
o
w
W
a
t
c
h
d
o
g
V
o
l
t
a
g
e
i
T
m
e
r
D
e
t
e
c
t
R
e
s
e
t
L
o
w
R
F
C
i
r
c
u
i
t
V
o
l
t
a
g
e
T
r
a
n
s
m
i
t
t
e
r
R
e
s
e
t
8
-
b
i
t
I
n
t
e
r
r
u
R
I
S
C
C
o
n
t
r
o
l
M
C
U
C
o
r
e
E
O
R
C
/
H
X
T
F
l
a
s
h
/
E
E
P
R
O
M
L
I
R
E
/
L
X
T
P
r
o
g
r
a
m
m
i
n
g
s
c
i
l
l
a
t
C
i
r
c
u
i
t
r
y
(
I
S
P
)
H
I
R
C
F
l
a
s
h
E
E
P
R
O
M
R
A
M
O
s
c
i
l
l
a
t
o
r
P
r
o
g
r
a
m
D
a
t
a
T
B
0
/
T
B
1
D
a
t
a
M
e
m
o
r
y
M
e
m
o
r
y
M
e
m
o
r
y
1
2
-
B
i
t
A
/
D
C
o
n
v
e
r
t
e
r
C
o
m
p
a
r
a
t
o
r
s
I
/
O
T
M
0
T
M
1
Note: The A/D Converter function only exists in the HT66F03T3 device.
Rev. 1.30
3
July 4, 2011