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HT1330 датащи(PDF) 3 Page - Holtek Semiconductor Inc

номер детали HT1330
подробное описание детали  3 1/2 Digit Timer Watch
PDF  8 Pages
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производитель  HOLTEK [Holtek Semiconductor Inc]
домашняя страница  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT1330 датащи(HTML) 3 Page - Holtek Semiconductor Inc

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Pin/Pad Description
Pin No. Pad No. Pad Name
I/O
Description
11
1
S3
I
Input to start/stop the timer
14
2
S2
I
Input for minute setting
16
3
S1
I
Input for hour setting
17
4
VEE
¾
Negative voltage supply for LCD display
18
5
CAP2
O
For voltage doubling capacitor
20
6
CAP1
O
For voltage doubling capacitor
24
7
COM1
O
Common 1 drive
25
8
BC3
O
Segment drive
26
9
AG3
O
Segment drive
27
10
FE3
O
Segment drive
28
11
BC2
O
Segment drive
29
12
ADG2
O
Segment drive
30
13
FE2
O
Segment drive
31
14
COD3
O
Segment drive
33
15
BC1
O
Segment drive
34
16
AG1
O
Segment drive
35
17
FE1
O
Segment drive
36
18
KD1
O
Segment drive
37
19
COM2
O
Common 2 drive
38
20
OSC1
I
Oscillator input
39
21
OSC2
O
Oscillator output
46
22
BUSY
O
Timer busy flag, active high
47
23
T2
I/O Chip test pin
424
T1
I/O Fast-test control pin
5
25
VSS
¾
Negative power supply
6
26
VDD
¾
Positive power supply
827
OP
I
Option pin for countdown recycle
928
BZ
O
Piezo drive
10
29
BZB
O
Piezo drive
HT1330
3
August 10, 2000



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