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| 型号： | TC7126IPL |
| 厂商： | Microchip Technology |
| 文件页数： | 16/26页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3 1/2DGT LCD DVR 40-DIP |
| 标准包装： | 10 |
| 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： | 55µA |
| 电源电压： | 9V |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 40-DIP（0.600"，15.24mm） |
| 供应商设备封装： | 40-PDIP |
| 包装： | 管件 |
TC7126/A
8.0
TYPICAL APPLICATIONS
Simple Inverter for Fixed Decimal Point
8.1
Liquid Crystal Display Sources
or Display Annunciator
V+
Several manufacturers supply standard LCDs to inter-
V+
face with the TC7126A, 3-1/2 digit analog-to-digital
converter.
TC7126A
BP 21
4049
To LCD
Decimal
Point
Manufacturer
Address/Phone
Representative
Part Numbers*
TEST 37
GND
To
Backplane
Crystaloid
5282 Hudson Dr.
C5335, H5535,
Multiple Decimal Point or
Annunciator Driver
Electronics
AND
Hudson, OH 44236
216-655-2429
720 Palomar Ave.
T5135, SX440
FE 0801
V+
BP
V+
Sunnyvale, CA 94086
FE 0203
VGI, Inc.
408-523-8200
1800 Vernon St., Ste. 2
LD-B709BZ
TC7126A
To LCD
Decimal
Point
To LCD
Decimal
Point
Roseville, CA 95678
LD-H7992AZ
916-783-7878
TEST
4030
Hamlin, Inc.
612 E. Lake St.
Lake Mills,
WI 53551
414-648-2361
3902, 3933,
3903
FIGURE 8-1:
Annunciator Drives
GND
Decimal Point and
Note:
Contact LCD manufacturer for full product list-
ing/specifications.
8.3
Flat Package
8.2
Decimal Point and Annunciator
Drive
The TC7126 is available in an epoxy 64-pin formed
lead package. A test socket for the TC7126ACBQ
device is available:
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-
cation may be added, without adding an additional sup-
ply. No more than 1mA should be supplied by the TEST
Part Number:
Manufacturer:
Distribution:
IC 51-42
Yamaichi
Nepenthe Distribution
2471 East Bayshore, Ste. 520
Palo Alto, CA 94043
(650) 856-9332
pin; its potential is approximately 5V below V+ (see
Figure ).
8.4
Ratiometric Resistance
Measurements
The TC7126A’s true differential input and differential
reference make ratiometric reading possible. In a ratio-
metric operation, an unknown resistance is measured
with respect to a known standard resistance. No
accurately defined reference voltage is needed.
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 is
applied to the reference input. If the unknown equals
the standard, the display will read 1000. The displayed
reading can be determined from the following
expression:
EQUATION 8-1:
Displayed (Reading) =
R UNKNOWN
R STANDARD
x 1000
DS21458C-page 16
? 2006 Microchip Technology Inc.
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相关代理商/技术参数 |
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|---|---|
| TC7126RCPL | 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 |
| TC7126RIPL | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:3-1/2 Digit Analog-to-Digital Converters |
| TC7129 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
| TC7129_06 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
| TC7129_13 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
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