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參數(shù)資料
| 型號： | AT30TS750-XM8-T |
| 廠商： | ATMEL CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 3Cel, SQUARE, SURFACE MOUNT |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 18/52頁 |
| 文件大?。?/td> | 1369K |
| 代理商： | AT30TS750-XM8-T |
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Atmel AT30TS750 [Preliminary]
Master. After receiving the ACK from the AT30TS750, the Master must then send two data bytes
to the AT30TS750 to set the value of the Nonvolatile Configuration Register. Any subsequent
bytes sent to the AT30TS750 will simply be ignored by the device. If the Master does not send
two complete bytes of Nonvolatile Configuration Register data prior to issuing a STOP or
repeated START condition, then the AT30TS750 will ignore the data and the contents of the
Nonvolatile Configuration Register will not be changed.
After the Master has issued a STOP condition, the AT30TS750 will begin the internally self-timed
program operation, and the contents of the Nonvolatile Configuration Register will be updated
within a time of tPROG. During this time, the NVRBSY bit in the Configuration Register will
indicate that the device is busy. If the Master issues a repeated START condition instead of a
STOP condition, the AT30TS750 will abort the operation and the contents of the Nonvolatile
Configuration Register will not be changed.
In addition to the Master not sending two complete bytes of data, writing to the Nonvolatile
Configuration Register will be ignored and no operation will be performed under the following
conditions:
the nonvolatile registers are already busy (the NVRBSY bit of the Configuration
Register is in the logic “1” state), the volatile and nonvolatile registers are currently locked (the
RLCK bit of the Nonvolatile Configuration Register is in the logic “1” state), or the volatile and
nonvolatile registers are permanently locked down (the RLCKDWN bit of the Nonvolatile
Configuration Register is in the logic “1” state). However, the device will still respond with an
ACK, except in the case of the nonvolatile registers being busy, to indicate that it received the
proper data bytes even though the program operation will not be performed. In the case of the
nonvolatile registers being busy, the device will respond with an ACK to the address and pointer
bytes but will then NACK when the data bytes are sent from the Master.
6.4.1
NVR1: NVR0 Bits
The nonvolatile NVR1 and NVR0 bits are used to select the power-up/reset default conversion
resolution of the internal sigma-delta ADC. Four possible resolutions can be set to maximize for
either higher resolution or faster conversion times. The NVR1 and NVR0 bits are set from the
factory to default to the logic “0” state to retain backwards compatibility to industry-standard
LM75-type devices.
Table 6-9.
Conversion Resolution
NVR1
NVR0
Conversion Resolution
Conversion Time
0
9 bits
0.5°C
25 ms
0
1
10 bits
0.25°C
50 ms
1
0
11 bits
0.125°C
100 ms
1
12 bits
0.0625°C
200 ms
6.4.2
NVFT1:NVFT0 Bits
The nonvolatile NVFT1 and NVFT0 bits are used to set the power-up/reset default Fault
Tolerance Queue value which defines how many consecutive faults must occur before the
ALERT pin will be activated (see Fault Tolerance Limits section on page 9). The NVFT1 and
NVFT0 bit settings provide four different fault values as detailed in Table 6-10. Both the NVFT1
and NVFT0 bits are factory-set to default to the logic “0” state.
8749A-DTS-03/11
25
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| AT30TS75A-SS8M-B | 功能描述:SENSOR TEMP I2C/SMBUS 8SOIC 制造商:atmel 系列:- 包裝:管件 零件狀態(tài):有效 傳感器類型:數(shù)字，本地 檢測溫度 - 本地:-55°C ~ 125°C 檢測溫度 - 遠(yuǎn)程:- 輸出類型:I2C/SMBus 電壓 - 電源:1.7 V ~ 5.5 V 分辨率:11 b 特性:單觸發(fā)，輸出開關(guān)，可編程極限，可編程分辨率，關(guān)斷模式 精度 - 最高（最低）:±1°C（±3°C） 測試條件:0°C ~ 85°C（-40°C ~ 120°C） 工作溫度:-55°C ~ 125°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:8-SOIC 標(biāo)準(zhǔn)包裝:100 |
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