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參數資料
| 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： | 24/52頁 |
| 文件大?。?/td> | 1369K |
| 代理商： | AT30TS750-XM8-T |
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R
Figure 6-9.
Read from TLOW or THIGH Limit Register
SCL
SDA
ACK
FROM
SLAVE
START
BY
MASTER
2
1
MSB
3
16
7
5
49
8
ADDRESS BYTE
STOP
BY
MASTER
23
16
7
5
49
8
0
1
A
1
0
D7
D6
D5
D4
D3
D2
D1
D0
MSB
NACK
FROM
MASTER
1
23
16
7
5
49
8
D15 D14 D13 D12 D11 D10
D9
D8
MSB
ACK
FROM
MASTER
0
TLOW OR THIGH LIMIT REGISTER
UPPER BYTE
TLOW OR THIGH LIMIT REGISTER
LOWER BYTE
Note:
Assumes the Pointer Register was previously set to point to the TLOW or THIGH Limit Register
6.6
Nonvolatile TLOW and THIGH Limit Registers
The 16-bit Nonvolatile TLOW and THIGH Limit Registers store the power-up/reset default values
for the volatile versions of the TLOW and THIGH Limit Registers. Like their volatile counterparts,
the temperature data values of the Nonvolatile TLOW and THIGH Limit Registers are stored in the
2’s complement format with the MSB (bit 15) of the registers containing the sign bit (“0” indicates
a positive number and a “1” indicates a negative number).
The values stored in both the Nonvolatile TLOW and THIGH Limit Registers will be retained even
after the device has been powered down or reset. On every power up or reset sequence, the
contents of the Nonvolatile TLOW Limit Register will be copied into the TLOW Limit Register, and
the contents of the Nonvolatile THIGH Limit Register will be copied into the THIGH Limit Register.
All temperature limit comparisons for the temperature alarm will be done using the volatile
versions of the TLOW and THIGH Limit Registers. By utilizing the Nonvolatile TLOW and THIGH
Limit Registers, the device can power-up or reset with pre-defined temperature limits specific to
the particular application. Therefore, unlike standard LM75-type temperature sensors, there is no
need to update the lower and upper temperature limit values after every power-up or reset.
Like the Nonvolatile Configuration Register, the Nonvolatile TLOW and THIGH Limit Registers
utilize nonvolatile storage cells, so the same care must be taken when updating the registers to
accommodate for the associated program time and finite program endurance limit. Power must
not be removed from the device during the internally self-timed programming cycle of the
registers.
If power is removed prior to the completion of the programming cycle, then the
contents of the register being updated cannot be guaranteed. In addition, the contents of the
register may become corrupt if it is programmed more than the maximum allowed number of
writes.
As with the Temperature Register, the resolution selected by the R1 and R0 bits of the
Configuration Register will determine how many bits of the TLOW and THIGH Limit Registers will
be used. Therefore, when writing to the TLOW and THIGH Limit Registers, up to 12 bits of data
will be recognized by the device with the remaining LSBs being internally fixed to the logic “0”
state. Similarly, when reading from the TLOW and THIGH Limit Registers, up to 12 bits of data will
be output from the device with the remaining LSBs fixed in the logic “0” state.
8749A-DTS-03/11
Atmel AT30TS750 [Preliminary]
30
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相關代理商/技術參數 |
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| AT30TS75A-MA8M-T | 功能描述:SENSOR TEMP I2C/SMBUS 8UDFN 制造商:atmel 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 傳感器類型:數字，本地 檢測溫度 - 本地:-55°C ~ 125°C 檢測溫度 - 遠程:- 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，可編程極限，可編程分辨率，關斷模式 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-UFDFN 裸露焊盤 供應商器件封裝:8-UDFN（2x3） 標準包裝:1 |
| 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:數字，本地 檢測溫度 - 本地:-55°C ~ 125°C 檢測溫度 - 遠程:- 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，可編程極限，可編程分辨率，關斷模式 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） 供應商器件封裝:8-SOIC 標準包裝:100 |
| AT30TS75A-SS8M-T | 功能描述:SENSOR TEMP I2C/SMBUS 8SOIC 制造商:atmel 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 傳感器類型:數字，本地 檢測溫度 - 本地:-55°C ~ 125°C 檢測溫度 - 遠程:- 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，可編程極限，可編程分辨率，關斷模式 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） 供應商器件封裝:8-SOIC 標準包裝:1 |
| AT30TS75A-XM8M-B | 功能描述:SENSOR TEMP I2C/SMBUS 8MSOP 制造商:microchip technology 系列:- 零件狀態(tài):在售 傳感器類型:數字，本地 檢測溫度 - 本地:-55°C ~ 125°C 檢測溫度 - 遠程:- 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，可編程極限，可編程分辨率，關斷模式 精度 - 最高（最低）:±1°C（±3°C） 測試條件:0°C ~ 85°C（-40°C ~ 125°C） 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 標準包裝:98 |
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