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參數資料
| 型號： | TC77-5.0MOATR |
| 廠商： | Microchip Technology |
| 文件頁數： | 10/22頁 |
| 文件大小： | 374K |
| 描述： | IC THERMAL SENSOR SPI 5V 8-SOIC |
| 標準包裝： | 3,300 |
| 功能： | 溫度監控系統（傳感器） |
| 傳感器類型： | 內部 |
| 感應溫度： | -55°C ~ 125°C |
| 精確度： | ±3°C（最小值） |
| 拓撲： | ADC（三角積分型），寄存器庫 |
| 輸出類型： | MICROWIRE?，SPI? |
| 輸出警報： | 無 |
| 輸出風扇： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOICN |
| 包裝： | 帶卷 (TR) |
| 配用： | TC77DM-PICTL-ND - BOARD DEMO PICTAIL TC77 |
TC77
DS20092A-page 10
?2002 Microchip Technology Inc.
FIGURE 3-2:
Temperature Read Timing Diagram - (Reading only the first 13 Bits of the
Temperature Register).
FIGURE 3-3:
Temperature Read Followed By A Write To The Configuration Register Timing.
Diagram.
It is recommended that the user write all 0s or all 1s
to the Configuration register. While the following codes
can be transmitted to the TC77, any other code may
put the TC77 into a test mode reserved by Microchip for
calibration and production verification tests.
" 00 hex
" 01 hex
" 03 hex
" 07 hex
" 0F hex
" 1F hex
" 3F hex
" 7F hex
" FF hex
The following communication steps can be used to
obtain the Manufacturer's ID and put the device into the
Continuous Conversion mode. The Manufacturers ID
register is only accessible for a read operation, if the
TC77 is in Shutdown mode.
1. CS
goes low to initiate the communication cycle.
2. Read 16 bits of temperature data from the
Temperature register.
3. Write 16 bits of data (i.e. XXFF hex) to the Con-
figuration register to enter Shutdown mode.
4. Read the 16 bits from the Manufacturer's ID reg-
ister (C15:C8 = 54 hex) to verify that the sensor
is a Microchip device.
5. Write 8 to 16 bits of data (00 or 0000 hex) to
enter Continuous Conversion Mode.
6. Return CS
high to terminate the communication
cycle.
The time between a complete temperature conversion
and data transmission is approximately 300 msec.
CS
CLK
SI/O
t
CS-SCK
HI-Z
HI-Z
T T
T
12 11 10
T
9
T
7
T
6
T
5
T
4
T
3
T
2
T
1
T
0
1
8
13
T
8
CS
CLK
SI/O
t
CS-SCK
HI-Z
1
8
8
8
8
1
HI-Z
1
1
HI-Z
TEMPERATURE REGISTER
Notes:
1. Bit 2 = 0 during power-up for the first
temperature conversion.
2. Bit 2 =1 after the completion of the first tem-
perature conversion following power-up or a
reset event.
3. Bits 1 and 0 are DON T CARES .
CONFIGURATION REGISTER
Notes:
1. XX00 = Continuous Conversion Mode
2. XXFF = Shutdown Mode
T
12
T
11
T
10
T
9
T
8
T
7
T
6
T
5
T
4
T
3
T
2
T
1
T
0
BIT
2
C
15
C
14
C
13
C
12
C
11
C
10
C
9
C
8
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
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