HT1611C
Data & Timing
·
For instrument or mC application
·
The HT1611C is also capable of displaying BCD data
generated from instrument or a mC system. The corre-
sponding data and timing is shown in the Data latch
timing. Before the data is transmitted to the HT1611C,
the HK pin should be pulled-low or continuously kept
low. The HT1611C is then ready to receive the data.
At the falling edge of the clock the data is shifted in to
the IC. After all the data is sent to the HT1611C, the
SK pin is set low to avoid switching to the timer mode.
For telephone application
The HT1611C is designed to display telephone num-
bers derived from the HT93XXX series telephone dial-
ers. The corresponding data is illustrated in the
following table.
D
a
t
a
C
o
d
e
K
e
y
-
I
n
D
i
s
p
l
a
y
b
3
b
2
b
1
b
0
B
l
a
n
0
0
0
0
0
k
0
0
0
0
1
0
0
1
1
0
0
1
B
l
a
n
k
1
2
3
4
0
1
0
5
6
7
8
0
0
0
1
1
1
1
0
0
1
1
0
1
0
1
0
9
0
1
1
0
0
0
1
1
0
*
1
1
1
1
1
1
1
0
1
0
0
1
1
1
1
0
1
0
1
#
F
P
1
·
Data latch timing
t
B
S
K
t
A
b
3
b
2
b
1
b
0
b
3
b
2
b
1
b
0
b
1
b
0
D
I
t
C
D
i
g
i
t
1
D
i
g
i
t
N
D
i
g
i
t
2
Rev. 1.10
7
August 17, 2001
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
