HT16561 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT16561 Datasheet PDF : 9 Pages
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Pin Assignment
44 43 42 41 40 39 38 37 36 35 34
g3 1
33 b4
e3 2
3 2 f3
d3 3
31 a3
c3 4
30 b3
g2 5
e2 6
c2 7
H T16561
4 4 Q F P -A
29 1H z
2 8 f2
27 a2,d2
g1 8
26 b2
e1 9
2 5 f1
d1 10
24 a1
c1 11
23 b1
12 13 14 15 16 17 18 19 20 21 22
HT16561
c4
PM
ZA
TEST1
TEST4
NC
TEST3
TEST2
MS
HS
AM
44 43 42 41 40 39 38 37 36 35 34
1
33
2
32
3
31
4
30
5
H T16561B
29
6
4 4 Q F P -B
28
7
27
8
26
9
25
10
24
11
23
12 13 14 15 16 17 18 19 20 21 22
64H z
D IM
SE
VDD
C O N T1
NC
C O N T2
VSS
O SCI
O SCO
A /C
Pin Description
Pin Name
VDD
I/O
O High voltage power supply pin.
Description
VSS
¾ Ground pin.
DIM
CONT1
I Illumination level control pins.
I Internally connected to pull-down resistors.
CONT2
I
Illumination level control pins.
Internally connected to pull-up resistors.
When the A/C pin is low, the internal circuits are reset.
A/C
I The reset pulse width should be more than 2ms.
Internally connected to a pull-up resistor.
ZA
I
Zero adjustment pin.
Internally connected to a pull-down resistor.
HS
I
Hour adjustment pin.
Internally connected to a pull-down resistor.
MS
I
Minute adjustment pin.
Internally connected to a pull-down resistor.
SE
I
Set enable pin.
Internally connected to a pull-up resistor.
OSCO
OSCI
O
Crystal oscillator pin
I
TEST1, TEST2
I IC test pin - should be left open or kept at a low level
TEST3, TEST4
I IC test pin - should be left open or kept at a high level
64Hz
O 64Hz signal output pin for oscillation frequency adjustment
a1, a3 ~ b2, b4, c4
AM, PM
O Segment output pins for VFD
1Hz
Rev. 1.10
2
May 24, 2012
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