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參數(shù)資料
| 型號(hào)： | AT30TS750-XM8-B |
| 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)： | 30/52頁 |
| 文件大?。?/td> | 1369K |
| 代理商： | AT30TS750-XM8-B |
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R
Figure 9-2.
Copy Nonvolatile Registers to Volatile Registers
SCL
SDA
ACK
FROM
SLAVE
START
BY
MASTER
2
1
MSB
3
16
7
5
49
8
ADDRESS BYTE
COMMAND BYTE
STOP
BY
MASTER
23
16
7
5
49
8
0
1
A
0
1011100
0
ACK
FROM
SLAVE
MSB
0
9.2
Copy Volatile Registers to Nonvolatile Registers
The Copy Volatile Registers to Nonvolatile Registers command allows the contents of the
Configuration Register, TLOW Limit Register, and THIGH Limit Register to be copied into the
Nonvolatile Configuration Register, Nonvolatile TLOW Limit Register, and Nonvolatile THIGH Limit
Register. The Copy Volatile Registers to Nonvolatile Registers command can be used in the
event that the volatile data registers are modified and it is desired for that newly modified data to
become the new power-up/reset defaults.
To copy the contents of the volatile data registers into the nonvolatile data registers, the Master
must first initiate a START condition followed by the AT30TS750’s device address byte
(1001AAA0 where “AAA” corresponds to the hard-wired A2-0 address pins).
After the
AT30TS750 has received the proper address byte, the device will send an ACK to the Master.
The Master must then send the command byte of 48h for the Copy Volatile Registers to
Nonvolatile Registers operation. After the command byte of 48h has been sent, the AT30TS750
will send another ACK to the Master.
After the Master has subsequently issued a STOP
condition, the AT30TS750 will begin the internally self-timed copy operation. The copy process
will take place in a maximum time of tCOPYW during which time the NVRBSY bit in the
Configuration Register will indicate that the nonvolatile registers are busy. If the Master issues a
repeated START condition instead of a STOP condition, the AT30TS750 will abort the copy
operation and the contents of the nonvolatile data registers will not be changed.
The Copy Volatile Registers to Nonvolatile Registers command 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 to indicate that it received the command byte even though
the copy process will not be performed.
Care must be taken when copying the volatile data registers to the nonvolatile data registers in
order to accommodate the associated program time and finite program endurance limit. Power
must not be removed from the device during the internally self-timed copy/program cycle.
If
power is removed prior to the completion of the copy/program cycle, then the contents of the
nonvolatile registers cannot be guaranteed. In addition, the contents of the nonvolatile registers
may become corrupt if programmed more than the maximum allowed number of writes.
8749A-DTS-03/11
Atmel AT30TS750 [Preliminary]
36
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT30TS750XM8T | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:9- to 12-bit Selectable, ?±0.5?°C Accurate Digital Temperature Sensor with Nonvolatile Registers |
| AT30TS750-XM8-T | 功能描述:板上安裝溫度傳感器 TMP SENSOR RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| 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(shù)字，本地 檢測(cè)溫度 - 本地:-55°C ~ 125°C 檢測(cè)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(cè)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(yīng)商器件封裝:8-UDFN（2x3） 標(biāo)準(zhǔn)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(shù)字，本地 檢測(cè)溫度 - 本地:-55°C ~ 125°C 檢測(cè)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(cè)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 |
| 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(shù)字，本地 檢測(cè)溫度 - 本地:-55°C ~ 125°C 檢測(cè)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(cè)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:1 |
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