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参数资料
| 型号： | ADT7467ARQ-REEL |
| 厂商： | ON Semiconductor |
| 文件页数： | 10/72页 |
| 文件大小： | 0K |
| 描述： | IC REMOTE THERMAL CTRLR 16-QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi Product Obsolescence 11/Feb/2009 |
| 标准包装： | 2,500 |
| 系列： | dBCool® |
| 功能： | 风扇控制，温度监控器 |
| 传感器类型： | 内部和外部 |
| 感应温度： | -40°C ~ 120°C，外部传感器 |
| 精确度： | ±1.5°C |
| 拓扑： | ADC，比较器，风扇速度计数器，多路复用器，寄存器库 |
| 输出类型： | SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 120°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
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ADT7467
In the ADT7467, write operations contain either one or
two bytes, and read operations contain one byte. To write
data to a device data register or read data from it, the address
pointer register must first be set. The first byte of a write
operation always contains an address, which is stored in the
address pointer register, and the second byte, if there is a
second byte, is written to the register selected by the address
pointer register.
This write operation is illustrated in Figure 15. The device
address is sent over the bus, and then R/W is set to 0. This
is followed by two data bytes. The first data byte is the
address of the internal data register, and the second data byte
is the data written to that internal data register.
When reading data from a register, there are two
possibilities:
1. If the address pointer register value of the
ADT7467 is unknown or not the desired value, it
must be set to the correct value before data can be
read from the desired data register. This is
achieved by writing a data byte containing the
register address to the ADT7467. This is shown in
Figure 16. A read operation is then performed
consisting of the serial bus address and the R/W
bit set to 1, followed by the data byte read from
the data register. This is shown in Figure 17.
2. If the address pointer register is known to be at the
desired address, data can be read from the
corresponding data register without first writing to
the address pointer register, as shown in Figure 17.
If the address pointer register is already at the correct
value, it is possible to read a data byte from the data register
without first writing to the address pointer register.
However, it is not possible to write data to a register without
writing to the address pointer register, because the first data
byte of a write is always written to the address pointer
register.
In addition to supporting the send byte and receive byte
protocols, the ADT7467 also supports the read byte
protocol. (See the Intel System Management Bus
Specifications Rev. 2 for more information.)
If several read or write operations must be performed in
succession, the master can send a repeat start condition
instead of a stop condition to begin a new operation.
1
9
1
9
SCL
SDA
0
1
0
1
1
1
0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
FRAME 2
START BY
MASTER
FRAME 1
SERIAL BUS ADDRESS BYTE
ACK. BY
ADT7467
1
ACK. BY
ADT7467
ADDRESS POINTER REGISTER BYTE
9
SCL (CONTINUED)
SDA (CONTINUED)
D7
D6
D5
D4
D3
D2
D1
D0
FRAME 3
DATA BYTE
ACK. BY
ADT7467
STOP BY
MASTER
Figure 15. Writing a Register Address to the Address Pointer Register, then Writing Data to the Selected Register
1
9
1
9
SCL
SDA
0
1
0
1
1
1
0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
FRAME 2
START BY
MASTER
FRAME 1
SERIAL BUS ADDRESS BYTE
ACK. BY
ADT7467
ACK. BY
ADT7467
ADDRESS POINTER REGISTER BYTE
STOP BY
MASTER
Figure 16. Writing to the Address Pointer Register Only
1
9
1
9
SCL
R/W
SDA
START BY
MASTER
0
1 0 1 1 1 0
FRAME 1
SERIAL BUS ADDRESS BYTE
D7
ACK. BY
ADT7467
D6
D5 D4 D3 D2 D1
FRAME 2
DATA BYTE FROM ADT7467
D0
NO ACK. BY STOP BY
MASTER MASTER
Figure 17. Reading Data from a Previously Selected Register
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADT7467ARQ-REEL7 | 功能描述:IC REMOTE THERMAL CTRLR 16-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADT7467ARQZ | 功能描述:马达/运动/点火控制器和驱动器 FAN CNTRLR/INT MON RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| ADT7467ARQZ | 制造商:Analog Devices 功能描述:Temperature Sensor IC |
| ADT7467ARQZ-R7 | 功能描述:板上安装温度传感器 RMT THRM MON FAN CTL RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| ADT7467ARQZ-REEL | 功能描述:板上安装温度传感器 FAN CNTRLR/INT MON RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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