HT1612 データシートの表示（PDF） - Holtek Semiconductor
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HT1612 Datasheet PDF : 14 Pages
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HT1612
Pad Coordinates
Pad No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
X
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–61.92
–57.80
–45.90
–36.50
–28.86
Y
Pad No.
41.65 18
33.98 19
26.30 20
17.85 21
10.95 22
3.17 23
–4.53 24
–12.22 25
–19.96 26
–27.60 27
–35.26 28
–42.95 29
–52.26 38
–60.80 39
–60.80 31
–60.80 32
–60.80 33
X
–18.66
4.72
12.36
20
34.98
50.02
61.67
61.63
61.63
61.63
61.63
61.63
61.63
61.63
61.63
61.63
61.63
Y
Pad No.
–60.80 35
–60.80 36
–60.80 37
–60.80 38
–60.46 39
–60.46 40
–60.80 41
–42.18 42
–33.98 43
–25.82 44
–17.66 45
–9.50 46
–1.34 47
6.80 48
14.98 49
23.14 50
31.30
Unit: mil
X
61.63
61.63
61.63
41.78
33.62
25.46
17.30
9.14
0.98
–7.18
–15.34
–23.50
–31.66
–39.82
–47.98
–56.14
Y
39.46
47.60
55.79
61.14
61.14
61.14
61.14
61.14
61.14
61.14
61.14
61.14
61.14
61.14
61.14
61.14
Pad Description
Pad Name
I/O
Internal
Connection
Description
SEG1~SEG30 O CMOS OUT LCD segement signal output pads
COM1~COM3 O CMOS OUT LCD common signal output pads
HK
I
CMOS IN
Pull-High
Hook switch detector input
Active low
X2
O OSCILLATOR 32768Hz crystal oscillator output
X1
I OSCILLATOR 32768Hz crystal oscillator input
T2
I
CMOS IN
Pull-High
Test pad (connected to VSS for production test)
T1
I
CMOS IN
Pull-High
Test pad (connected to VSS for production test)
INT
O NMOS OUT Interrupt output, 8 or 16Hz by mask option
TIMER
I
CMOS IN
Pull-Low
Timer reset and start/hold toggle control input pad
3
5th July ’95
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