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參數(shù)資料
| 型號： | TC77-5.0MOA |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | 溫度傳感器 |
| 英文描述： | Thermal Sensor with SPI Interface |
| 中文描述： | 熱傳感器，SPI接口 |
| 文件頁數(shù)： | 8/22頁 |
| 文件大小： | 374K |
| 代理商： | TC77-5.0MOA |
TC77
DS20092A-page 8
2002 Microchip Technology Inc.
3.0
FUNCTIONAL DESCRIPTION
The TC77 consists of a band-gap type temperature
sensor, a 12-bit plus sign (13-bit) Sigma-Delta Analog-
to-Digital Converter (ADC), an internal conversion
oscillator (~30 kHz) and a serial input/output port.
These devices feature a three-wire serial interface that
is fully compatible with SPI and MICROWIRE specifica-
tions and, therefore, allows simple communications
with common microcontrollers and processors. The
Shutdown mode can be used to reduce supply current
for power sensitive applications. A Manufacturer’s ID
register identifies the TC77 as a Microchip Technology
product.
FIGURE 3-1:
Temperature To Digital Transfer Function (Non-linear Scale).
Temp
Temp
Output
Code
+125°C
-55°C
+25°C
-25°C
+0.0625°C
-0.0625°C
0+0111 1101 0000
0+0001 1001 0000
0+0000 0000 0001
0+0000 0000 0000
1+1111 1111 1111
1+1110 0111 0000
1+1100 1001 0000
0°C
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