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參數(shù)資料
| 型號(hào)： | TC815CBU |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | 3-1/2 Digit Auto-Ranging A/D Converter with Triplex LCD Drive and Display Hold Function |
| 中文描述： | 3-1/2數(shù)字自動(dòng)測(cè)距的A / D三層液晶顯示驅(qū)動(dòng)器和轉(zhuǎn)換器保持功能 |
| 文件頁(yè)數(shù)： | 19/26頁(yè) |
| 文件大?。?/td> | 595K |
| 代理商： | TC815CBU |
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2002 Microchip Technology Inc.
DS21474B-page 19
TC815
TABLE 9-1:
10.0
EXTERNAL CRYSTAL
The TC815 is designed to operate with a 32,768Hz
crystal. This frequency is internally divided by two to
give a 61.04μsec clock period. One conversion takes
8000 clock periods or 488.3 msec (
≈
2 conversions/
second). Integration time is 1638.5 clock periods or
100msec.
The 32kHz quartz crystal is readily available and inex-
pensive. The 32kHz crystal is commonly used in digital
clocks and counters.
Several crystal sources exist. A partial listing is:
Statek Corporation
512 N. Main
Orange, CA 92668
(714) 639-7810
TWX: 910-593-1355
TELEX: 67-8394
Fox Electronics
5570 Enterprise Parkway
Fort Myers, FL 33905
(941) 693-0099
Contact manufacturer for full specifications.
PAD
BP1
BP2
BP3
PAD
COM1
COM2
COM3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
BP1
/
/
/
/
HOLD
b1
a1
f1
b2
a2
f2
b3
a3
f3
b4
AC
/
/
/
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
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/
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/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
BP2
/
LO
W
k
c1
g1
e1
c2
g2
e2
c3
g3
e3
c4
BP3
A
V
m
/
d1
/
P2
d2
/
P3
d3
/
P4
Auto
/
–MEM
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