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参数资料
| 型号： | TC7117RCPL |
| 厂商： | Microchip Technology |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3 1/2DGT LED DVR REV40DIP |
| 标准包装： | 10 |
| 显示器类型： | LED |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，3.5 位数字 |
| 电流 - 电源： | 800µA |
| 电源电压： | 5V |
| 工作温度： | 0°C ~ 70°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 |
TC7116/A/TC7117/A
TABLE 2-1:
PIN FUNCTION TABLE (CONTINUED)
Pin Number
(40-Pin PDIP)
(40-Pin CERDIP)
34
Pin Number
(44-Pin PQFP)
42
Symbol
C REF +
Description
A 0.1 μ F capacitor is used in most applications. If a large Common mode voltage
exists (for example, the V IN - pin is not at analog common), and a 200mV scale is
used, a 1 μ F capacitor is recommended and will hold the rollover error to
0.5 count.
35
36
43
44
V+
V REF +
Positive Power Supply Voltage.
The analog input required to generate a full scale output (1999 counts). Place
100mV between Pins 32 and 36 for 199.9mV full scale. Place 1V between
Pins 35 and 36 for 2V full scale. See Section 4.6 “Reference Voltage” , Refer-
ence Voltage.
37
3
TEST
Lamp test. When pulled HIGH (to V+), all segments will be turned on and the dis-
play should read -1888. It may also be used as a negative supply for externally
generated decimal points. See Section 3.1.7 “Test” , TEST for additional infor-
mation.
38
39
40
4
6
7
OSC3
OSC2
OSC1
See Pin 40.
See Pin 40.
Pins 40, 39, 38 make up the oscillator section. For a 48kHz clock (3 readings per
section), connect Pin 40 to the junction of a 100k Ω resistor and a 100pF capaci-
tor. The 100k Ω resistor is tied to Pin 39 and the 100pF capacitor is tied to Pin 38.
? 2006 Microchip Technology Inc.
DS21457C-page 7
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