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參數(shù)資料
| 型號： | ADT7518ARQZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 36/40頁 |
| 文件大?。?/td> | 891K |
| 描述： | IC SENSOR TEMP QD ADC/DAC 16QSOP |
| 標準包裝： | 98 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器） |
| 傳感器類型： | 內(nèi)部和外部 |
| 感應溫度： | -40°C ~ 120°C，外部傳感器 |
| 精確度： | ±3°C（最小值） |
| 拓撲： | ADC，比較器，多路復用器，寄存器庫 |
| 輸出類型： | I²C?，MICROWIRE?，QSPI?，SPI? |
| 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 ~ 120°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-QSOP |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 798 (CN2011-ZH PDF) |
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ADT7518
Rev. A | Page 36 of 40
0
1
R/W
SCL
D
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
ADDRESS POINTER REGISTER BYTE
ACK. BY
ADT7518
ACK. BY
ADT7518
STOP BY
MASTER
START BY
MASTER
0
0
1
A2
A1
A
P7
P6
P5
P4
P3
P2
P1
P0
9
1
9
1
Figure 56. I
2
CWriting to the Address Pointer Register to Select a Register for a Subsequent Read Operation
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
ADDRESS POINTER REGISTER BYTE
ACK. BY
ADT7518
ACK. BY
ADT7518
STOP BY
MASTER
FRAME 3
DATA BYTE
SDA (CONTINUED)
SCL (CONTINUED)
SCL
SD
START BY
MASTER
1
0
0
1
A2
A1
A0
P7
P6
P5
P4
P3
P2
P1
P0
9
D7
D6
D5
D4
D3
D2
D1
D0
R/W
1
9
1
9
1
ACK. BY
ADT7518
Figure 57. I
2
CWriting to the Address Pointer Register Followed by a Single Byte of Data to the Selected Register
1
SDA
START BY
MASTER
STOP BY
MASTER
NO ACK. BY
MASTER
ACK. BY
ADT7518
SCL
9
0
0
1
A2
A1
A0 R/W
D7
D6
D5
D4
D3
D2
D1
D0
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
SINGLE DATA BYTE FROM ADT7518
1
9
1
Figure 58. I
2
CReading a Single Byte of Data from a Selected Register
Write Operation
Figure 59 shows the timing diagram for a write operation to the
ADT7518. Data is clocked into the registers on the rising edge
of SCLK. When the CS
line is high, the DIN and DOUT lines
are in three-state mode. Only when the CS
goes from a high to a
low does the part accept any data on the DIN line. In SPI mode,
the address pointer register is capable of autoincrementing to
the next register in the register map without having to load the
address pointer register each time. In Figure 59, the register
address portion gives the first register that will be written to.
Subsequent data bytes will be written into sequential writable
registers. Thus, after each data byte has been written into a
register, the address pointer register autoincrements its value to
the next available register. The address pointer register will
autoincrement from 00h to 3Fh and will loop back to start again
at 00h when it reaches 3Fh.
Read Operation
Figure 60 to Figure 62 show the timing diagrams necessary to
accomplish correct read operations. To read back from a reg-
ister, first write to the address pointer register with the address
of the register to be read from. This operation is shown in
Figure 60. Figure 61 shows the procedure for reading back a
single byte of data. The read command is first sent to the part
during the first eight clock cycles. During the following eight
clock cycles, the data contained in the register selected by the
address pointer register is output onto the DOUT line. Data is
output onto the DOUT line on the falling edge of SCLK. Figure 62
shows the procedure when reading data from two sequential
registers. Multiple data reads are possible in the SPI interface
mode as the address pointer register is autoincremental. The
address pointer register will autoincrement from 00h to 3Fh and
will loop back to start again at 00h when it reaches 3Fh.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADT7518ARQZ-REEL | 制造商:Analog Devices 功能描述:Temp Sensor Analog Serial (4-Wire, SPI, I2C) 16-Pin QSOP T/R |
| ADT7518ARQZ-REEL7 | 制造商:Analog Devices 功能描述:Temp Sensor Analog Serial (4-Wire, SPI, I2C) 16-Pin QSOP T/R |
| ADT7519 | 制造商:AD 制造商全稱:Analog Devices 功能描述:SPI-/I2C-Compatible, Temperature Sensor,4-Channel ADC and Quad Voltage Output |
| ADT7519ARQ | 制造商:Analog Devices 功能描述:Temp Sensor Digital Serial (4-Wire, SPI, I2C) 16-Pin QSOP |
| ADT7519ARQ-REEL | 制造商:Analog Devices 功能描述:Temp Sensor Digital Serial (4-Wire, SPI, I2C) 16-Pin QSOP T/R |
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