參數(shù)資料
型號: HT1330
廠商: Holtek Semiconductor Inc.
英文描述: 3 1/2 Digit Timer + Watch
中文描述: 3 1 / 2位定時器觀察
文件頁數(shù): 3/8頁
文件大?。?/td> 98K
代理商: HT1330
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
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
4
24
T1
I/O
Fast-test control pin
5
25
VSS
Negative power supply
6
26
VDD
Positive power supply
8
27
OP
I
Option pin for countdown recycle
9
28
BZ
O
Piezo drive
10
29
BZB
O
Piezo drive
HT1330
3
August 10, 2000
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