- 您现在的位置：买卖IC网 > PDF目录22030 > ADT7467ARQZ (ON Semiconductor)IC PWM FAN CTRLR W/MONITR 16QSOP PDF资料下载
参数资料
| 型号： | ADT7467ARQZ |
| 厂商： | ON Semiconductor |
| 文件页数： | 11/72页 |
| 文件大小： | 0K |
| 描述： | IC PWM FAN CTRLR W/MONITR 16QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi Product Discontinuation 30/Sept/2011 |
| 标准包装： | 98 |
| 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： | 管件 |
| 产品目录页面： | 1118 (CN2011-ZH PDF) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页
ADT7467
Write Operations
The SMBus specification defines several protocols for
different types of read and write operations. The ones used
in the ADT7467 are discussed here. The following
8. The master asserts a stop condition on SDA to end
the transaction.
This operation is illustrated in Figure 19.
abbreviations are used in Figure 18 through Figure 20:
1
2
3
4
5
6
7 8
S = start
P = stop
S
Slave
Address
W A
Slave
Address
A Data A P
R = read
W = write
A = acknowledge
A = no acknowledge
The ADT7467 uses the following SMBus write protocols.
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 an
acknowledge on SDA.
4. The master sends a command code.
5. The slave asserts an acknowledge on SDA.
6. The master asserts a stop condition on SDA, and
the transaction ends.
For the ADT7467, the send byte protocol is used to write
a register address to RAM for a subsequent single byte read
from the same address. This operation is illustrated in
Figure 18.
Figure 19. Single Byte Write to a Register
Read Operations
The ADT7467 uses the following SMBus read protocols.
Receive Byte
This operation is useful when repeatedly reading a single
register. The register address must 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 an
acknowledge on SDA.
4. The master receives a data byte.
5. The master asserts a no acknowledge on SDA.
6. The master asserts a stop condition on SDA, and
the transaction ends.
In the ADT7467, the receive byte protocol is used to read
a single byte of data from a register whose address has
previously been set by a send byte or write byte operation.
1
2
3
4
5 6
This operation is illustrated in Figure 20.
S
A
A P
Address W
Slave Register
Address
Figure 18. Setting a Register Address for
1
S
2
Slave
Address
3
R A
4
Data
5 6
A P
Subsequent Read
If the master is required to read data from the register
directly after setting up the address, it can assert a repeat start
condition immediately after the final acknowledge 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 an
acknowledge on SDA.
4. The master sends a command code.
5. The slave asserts an acknowledge on SDA.
6. The master sends a data byte.
7. The slave asserts an acknowledge on SDA.
Figure 20. Single Byte Read from a Register
Alert Response Address
Alert response address (ARA) is a feature of SMBus
devices that allows an interrupting device to identify itself
to the host when multiple devices exist on the same bus.
The SMBALERT output can be used as either an interrupt
output or an SMBALERT. One or more outputs can be
connected to a common SMBALERT line connected to the
master. If a device’s SMBALERT line goes low, the
following procedure occurs:
1. SMBALERT is pulled low.
2. The master initiates a read operation and sends the
alert response address (ARA = 0001 100). This is
a general call address that must not be used as a
specific device address.
3. The device whose SMBALERT output is low
responds to the alert response address, and the
master reads its device address. The address of the
http://onsemi.com
11
相关PDF资料 |
PDF描述 |
|---|---|
| D09P13A4PL00LF | CONN DSUB PLUG 9 POS R/A GOLD |
| VE-BWD-CV-F3 | CONVERTER MOD DC/DC 85V 150W |
| ADT7461ARZ | IC TEMP MONITOR +/-1C DUAL 8SOIC |
| VE-BWD-CV-F2 | CONVERTER MOD DC/DC 85V 150W |
| ID25P33E4GV00LF | CONN DSUB PLUG 25POS T/H R/A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| ADT7467ARQZ-REEL7 | 功能描述:IC REMOTE THERMAL CTRLR 16QSOP RoHS:是 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 |
| ADT7467BBZEVB | 功能描述:BOARD EVALUATION FOR ADT7467 RoHS:是 类别:编程器，开发系统 >> 过时/停产零件编号 系列:dBCool® 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压: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 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
发布紧急采购，3分钟左右您将得到回复。