- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373995 > ADM1033ARQ-REEL (ANALOG DEVICES INC) Thermal Monitor and Fan Speed (RPM) Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | ADM1033ARQ-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Thermal Monitor and Fan Speed (RPM) Controller |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 15/40頁 |
| 文件大?。?/td> | 1164K |
| 代理商： | ADM1033ARQ-REEL |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當(dāng)前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
ADM1033
READ OPERATIONS
Receive Byte
Rev. 0 | Page 15 of 40
This operation is useful when repeatedly reading a single
register. The register address must be set up prior to this, with
the MSB at 0 to read a single byte. 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 sends NO ACK on SDA.
6.
The master asserts a stop condition on SDA and the
transaction ends.
In the ADM1033, the receive-byte protocol is used to read a
single byte from a register whose address has previously been
set by a send-byte or write-byte operation.
SLAVE
ADDRESS
S
DATA
R A
A P
0
Figure 24. Receive Byte
Block Read
In this operation, the master reads a block of data from a slave
device. The number of bytes to be read must be set in advance.
To do this, use
a write-byte operation to the #Bytes/Block Read
Register at Address 0x00. The register address determines
whether a block-read or a read-byte operation is to be
completed (set MSB to 1 to specify a block-read operation). A
maximum number of 32 bytes can be read.
1.
The master 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 the register address (MSB = 1).
5.
The slave asserts ACK on SDA.
6.
The master asserts a repeated start on SDA.
7.
The master sends the 7-bit slave address followed by the
read bit (high).
8.
The slave asserts ACK on SDA.
9.
The slave sends the byte count.
10.
The master asserts ACK on SDA.
11.
The slave sends N data bytes.
12.
The master asserts ACK on SDA after each data byte.
13.
The master does not acknowledge after the Nth data byte.
14.
The master asserts a stop condition on SDA to end the
transaction.
SLAVE
ADDRESS
S
BYTE
COUNT
DATA 1
REGISTER
ADDRESS
W
A
P
A
A
A DATA N
SLAVE
ADDRESS
S
R
A
0
A
Figure 25. Block Read from RAM
SMBus TIMEOUT
The ADM1033 has a programmable SMBus timeout feature.
When this is enabled, the SMBus typically times out after 25 ms
of no activity. The timeout is disabled by default. It prevents
SMBus hangups by releasing the bus after a period of inactivity.
To enable the SDA timeout, set the SDA timeout bit (Bit 5) of
Configuration Register 1 (Address 0x01) to 1.
To enable the SCL timeout, set the SCL timeout bit (Bit 4) of
Configuration Register 1 (Address 0x01) to 1.
PACKET ERROR CHECKING (PEC)
The ADM1033 supports packet error checking (PEC). This
optional feature is triggered by the extra clock for the PEC byte.
The PEC byte is calculated using CRC-8. The frame check
sequence (FCS) conforms to CRC-8 by the following:
1
)
(
2
8
+
+
+
=
x
x
x
x
C
For more information, consult www.SMBus.org.
ALERT RESPONSE ADDRESS (ARA)
ALERT RESPONSE
ADDRESS
S
DEVICE
ADDRESS
R A
A P
0
Figure 26. Alert Response Address
When multiple devices exist on the same bus, the alert response
address (ARA) feature allows an interrupting device to identify
itself to the host. The ALERT output can be used as an interrupt
output or as an SMBALERT. One or more ALERT outputs can
be connected to a common SMBALERT line, which is
connected to the master. If a device’s ALERT line goes low, the
following procedure occurs:
1.
SMBALERT is pulled low.
2.
The master initiates a receive-byte 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 with the low ALERT output responds to the
ARA, and the master reads its device address. Once the
address is known, it can be interrogated in the usual way.
4.
If low ALERToutput is detected in more than one device,
the one with the lowest device address has priority, in
accordance with normal SMBus arbitration.
5.
Once the ADM1033 has responded to the ARA, it resets its
ALERT output. If the error persists, the ALERT is re-
asserted on the next monitoring cycle.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADM1033ARQ-REEL7 | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQZ | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQZ-REEL | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQZ-REEL7 | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1041ARQ-REEL | Secondary-Side Controller with Current Share and Housekeeping |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM1033ARQ-REEL7 | 功能描述:IC THERM/FAN SPEED CTRLR 16-QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應(yīng)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(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)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(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADM1033ARQZ | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 +/- 1 C Digital 2-Wire RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| ADM1033ARQZ-REEL | 功能描述:板上安裝溫度傳感器 +/- 1 C Digital 2-Wire 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 |
| ADM1033ARQZ-REEL7 | 功能描述:IC THERM/FAN SPEED CTRLR 16-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應(yīng)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(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)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(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADM1033ARQZ-RL7 | 功能描述:IC THERM/FAN SPEED CTLR 16-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應(yīng)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(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)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(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。