參數(shù)資料
型號(hào)： TC818A
廠商： Microchip Technology Inc.
英文描述： Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display
中文描述： 自動(dòng)測(cè)距模擬到數(shù)字轉(zhuǎn)換器與數(shù)字顯示3-1/2
文件頁(yè)數(shù)： 17/24頁(yè)
文件大?。?/td> 583K
代理商： TC818A
2002 Microchip Technology Inc.
DS21475B-page 17
TC818A
3.16
External Crystal
The TC818A 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 488.3msec (
≈
2 conversions/
second). Integration time is 1638.5 clock periods or
100msec.
The 32kHz quartz crystal is readily available and
inexpensive. 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.
FIGURE 3-13:
TYPICAL LCD
CONFIGURATION,
TC818A TRIPLEX
TABLE 3-4:
TYPICAL LCD CONFIGURATION
–
+
W
LO
HOLD
-MEM
AC
AUTO
k
mVA
PAD
BP1
BP2
BP3
PAD
BP1
BP2
BP3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
—
X0
X5
X6
X11
X12
X17
X18
X23
X24
X29
X30
X35
X36
—
BPI
—
—
—
X1
X4
X7
X10
X13
X16
X19
X22
X25
X28
X31
X34
X37
X40
—
BP2
—
SCALE
X2
X3
X8
X9
X14
X15
X20
X21
X26
X27
X32
X33
X38
X39
—
—
BP3
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
—
—
BP1
—
—
HOLD
4B
4A
4F
3B
3A
3F
2B
2A
2A
1B
Z
AC
—
BP2
—
LOW
W
k
4C
4G
4E
3C
3G
3E
2C
2G
2G
1G
-MEM
y
BP3
—
—
A
V
m
—
4D
—
3P
3D
—
2P
2D
2D
1P
—
AUTO
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC818ACBU 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display
TC-819-SC 制造商:Thomas & Betts 功能描述:
TC820 制造商:TELCOM 制造商全稱:TelCom Semiconductor, Inc 功能描述:3-3/4 DIGIT A/D CONVERTER WITH FREQUENCY COUNTER AND LOGIC PROBE
TC820CKW 功能描述:LCD 驅(qū)動(dòng)器 3-3/4 A/D Converter RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
TC820CKW713 功能描述:LCD 驅(qū)動(dòng)器 3-3/4 A/D Converter RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
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