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| 型号： | TC7136CKW713 |
| 厂商： | Microchip Technology |
| 文件页数： | 15/22页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3 1/2DGT LOW PWR 44-MQFP |
| 标准包装： | 900 |
| 显示器类型： | LCD |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，3.5 位数字 |
| 电流 - 电源： | 70µA |
| 电源电压： | 9V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 带卷 (TR) |
TC7136/TC7136A
8.0
8.1
TYPICAL APPLICATIONS
Liquid Crystal Display Sources
The unknown resistance is put in series with a known
standard and a current passed through the pair. The
voltage developed across the unknown is applied to the
input and the voltage across the known resistor applied
Several manufacturers supply standard LCDs to inter-
face with the TC7136A 3-1/2 digit analog-to-digital
converter.
to the reference input. If the unknown equals the stan-
dard, the display will read 1000. The displayed reading
can be determined from the following expression:
Manufac.
Crystaloid
Electronics
Address/Phone
5282 Hudson Dr.
Hudson, OH 44236
Representative
Part Numbers*
C5335, H5535,
T5135, SX440
EQUATION 8-1:
Displayed(Reading) =
R UNKNOWN
R STANDARD
x 1000
AND
216-655-2429
720 Palomar Ave.
Sunnyvale, CA 94086
408-523-8200
FE 0201, 0501
FE 0203, 0701
FE 2201
The display will over range for:
R UNKNOWN ≥ 2 x R STANDARD
VGI, Inc.
1800 Vernon St. Ste.2,
Roseville,
CA 95678
I1048, I1126
FIGURE 8-1:
DECIMAL POINT AND
ANNUNCIATOR DRIVES
916-783-7878
Simple Inverter for Fixed Decimal Point
Hamlin, Inc.
612 E. Lake St.
3902, 3933, 3903
or Display Annunciator
Lake Mills,
WI 53551
414-648-2361 00
V+
V+
Note:
Contact LCD manufacturer for full product listing/
specifications.
TC7136
TC7136A
4049
8.2
Decimal Point and Annunciator
Drive
BP
TEST
21
37
GND
To LCD
Decimal Point
The TEST pin is connected to the internally generated
digital logic supply ground through a 500 Ω resistor. The
TEST pin may be used as the negative supply for exter-
nal CMOS gate segment drivers. LCD annunciators for
decimal points, low battery indication, or function indi-
Multiple Decimal Point or
Annunciator Driver
V+
To LCD Backplane
cation may be added without adding an additional sup-
ply. No more than 1mA should be supplied by the TEST
pin; its potential is approximately 5V below V+.
V+
BP
8.3
Ratiometric Resistance
TC7136
TC7136A
Decimal
Point
To LCD
Decimal Point
Measurements
The TC7136A's true differential input and differential
Select
reference make ratiometric readings possible. In ratio-
metric operation, an unknown resistance is measured
with respect to a known standard resistance. No
accurately defined reference voltage is needed.
? 2005 Microchip Technology Inc.
TEST
4030
GND
DS21461C-page 15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7136CLW | 功能描述:LCD 驱动器 Low Power RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7136CLW713 | 功能描述:LCD 驱动器 Low Power RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7136CPI | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Low Power 3-1/2 Digit Analog-to-Digital Converter |
| TC7136CPL | 功能描述:LCD 驱动器 Low Power RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7136RCPL | 功能描述:LCD 驱动器 Low Power RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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