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參數資料
| 型號： | ADT7466ARQZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | dBCool Remote Thermal Controller and Voltage Monitor |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | LEAD FREE, MO-137AB, QSOP-16 |
| 文件頁數： | 14/48頁 |
| 文件大小： | 1269K |
| 代理商： | ADT7466ARQZ-REEL7 |
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ADT7466
WRITE AND READ OPERATIONS
The SMBus specification defines several protocols for different
types of write and read operations. The protocols used in the
ADT7466 are discussed in the following sections. The following
abbreviations are used in the diagrams:
S—Start
P—Stop
R—Read
W—Write
A—Acknowledge
A—No Acknowledge
Write Operations
The ADT7466 uses the send byte and write byte protocols.
Rev. 0 | Page 14 of 48
Send Byte
In this operation, the master device sends a single command
byte to a slave device, as follows:
1.
The master device asserts a start condition on SDA.
2.
The master sends the 7-bit slave address followed by the
write bit (low).
3.
The addressed slave device asserts ACK on SDA.
4.
The master sends a register address.
5.
The slave asserts ACK on SDA.
6.
The master asserts a stop condition on SDA and the
transaction ends.
For the ADT7466, the send byte protocol is used to write a
register address to RAM for a subsequent single-byte read from
the same address. This is shown in Figure 20.
0
SLAVE
ADDRESS
REGISTER
ADDRESS
S
W
A
A
2
4
1
3
P
5
6
Figure 20. Setting a Register Address for Subsequent Read
If it is required to read data from the register immediately after
setting up the address, the master can assert a repeat start con-
dition immediately after the final ACK and carry out a single-
byte read without asserting an intermediate stop condition.
Write Byte
In this operation, the master device sends a command byte and
one data byte to the slave device, as follows:
1.
The master device asserts a start condition on SDA.
2.
The master sends the 7-bit slave address followed by the
write bit (low).
3.
The addressed slave device asserts ACK on SDA.
4.
The master sends a register address.
5.
The slave asserts ACK on SDA.
6.
The master sends a data byte.
7.
The slave asserts ACK on SDA.
8.
The master asserts a stop condition on SDA to end the
transaction.
This is shown in Figure 21.
0
SLAVE
ADDRESS
REGISTER
ADDRESS
S
W A
DATA
A
P
A
2
4
1
3
5
7
6
8
Figure 21. Single-Byte Write to a Register
Read Operations
The ADT7466 uses the following SMBus read protocols.
Receive Byte
This is useful when repeatedly reading a single register. The
register address needs to have been set up previously.
In this operation, the master device receives a single byte from a
slave device, as follows:
1.
The master device asserts a start condition on SDA.
2.
The master sends the 7-bit slave address followed by the
read bit (high).
3.
The addressed slave device asserts ACK on SDA.
4.
The master receives a data byte.
5.
The master asserts NO ACK on SDA.
6.
The master asserts a stop condition on SDA and the
transaction ends.
For the ADT7466, the receive byte protocol is used to read a
single byte of data from a register whose address was set
previously by a send byte or write byte operation.
0
2
3
1
4
5
SLAVE
ADDRESS
S
R
DATA
P
A
6
A
Figure 22. Single-Byte Read from a Register
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADT7466ARQZ-RL7 | 功能描述:板上安裝溫度傳感器 RMT THRM CTR VLT MON RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADT7466ZEVB | 功能描述:BOARD EVALUATION ADT7466 RoHS:是 類別:編程器，開發系統 >> 過時/停產零件編號 系列:dBCool® 標準包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| ADT7467 | 制造商:AD 制造商全稱:Analog Devices 功能描述:dBCool Remote Thermal Monitor and Fan Controller |
| ADT7467ARQ | 功能描述:IC PWM FAN CTRLR W/MONITR 16QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADT7467ARQ-REEL | 功能描述:IC REMOTE THERMAL CTRLR 16-QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
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