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參數(shù)資料
| 型號(hào)： | ADT7470ARQZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 7BIT(s), RECTANGULAR, SURFACE MOUNT |
| 封裝： | ROHS COMPLIANT, MO-137AB, QSOP-16 |
| 文件頁(yè)數(shù)： | 2/40頁(yè) |
| 文件大?。?/td> | 962K |
| 代理商： | ADT7470ARQZ |
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ADT7470
Rev. C | Page 10 of
40
during the low period before the 10th clock pulse, then
high during the 10th clock pulse to assert a stop condition.
To write data to one of the device data registers or read data
from it, the address pointer register must be set so that the
correct data register is addressed. Then data can be written into
that register or read from it. The first byte of a write operation
always contains an address that is stored in the address pointer
register. If data is to be written to the device, the write operation
contains a second data byte that is written to the register selected
by the address pointer register.
Any number of bytes of data can be transferred over the serial
bus in one operation. However, it is not possible to mix read
and write in one operation, because the type of operation is
determined at the beginning and subsequently cannot be
changed without starting a new operation.
In the ADT7470, write operations contain either one or two
bytes, and read operations contain one byte and perform the
following functions.
This is illustrated in Figure 7. The device address is sent over the
bus followed by R/W set to 0. This is followed by two data bytes.
04684-0-007
1
00
1
A1
A0
R/W
99
1
D7
D6
D5
D4
D3
D2
D1
D0
9
D7
D6
D5
D4
D3
D2
D1
D0
SCL
SDA
SCL (CONTINUED)
SDA (CONTINUED)
START BY
MASTER
ACK. BY
ADT7470
ACK. BY
ADT7470
ACK. BY
ADT7470
STOP BY
MASTER
FRAME 1
SERIAL BUS ADDRESS
BYTE
FRAME 2
ADDRESS POINTER REGISTER BYTE
FRAME 3
DATA
BYTE
Figure 7. Writing a Register Address to the Address Pointer Register, Then Writing Data to the Selected Register
SCL
SDA
1
01
0
1
A1
A0
START BY
MASTER
FRAME 1
SERIAL BUS ADDRESS
BYTE
FRAME 2
ADDRESS POINTER REGISTER BYTE
STOP BY
MASTER
ACK. BY
ADT7470
ACK. BY
ADT7470
R/W
D7
D6
D5
D4
D3
D2
D1
D0
99
1
04684-0-008
Figure 8. Writing to the Address Pointer Register Only
04684-0-009
SCL
SDA
1
01
0
1
A1
A0
START BY
MASTER
FRAME 1
SERIAL BUS ADDRESS
BYTE
FRAME 2
DATA BYTE FROM
ADT7470
STOP BY
MASTER
ACK. BY
ADT7470
NO ACK.
BY MASTER
R/W
D7
D6
D5
D4
D3
D2
D1
D0
99
1
Figure 9. Reading Data from a Previously Selected Register
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| ADT7470ARQZ-REEL7 | 功能描述:IC SENSOR TEMP FAN CTRLR 16QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:SilentSense™ 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:-55°C ~ 125°C，外部傳感器 精確度:±2°C 本地（最大），±3°C 遠(yuǎn)程（最大） 拓?fù)?ADC（三角積分型），比較器，寄存器庫(kù) 輸出類型:I²C?/SMBus? 輸出警報(bào):是 輸出風(fēng)扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) 其它名稱:MIC284-2BMMTRMIC284-2BMMTR-ND |
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