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參數(shù)資料
| 型號(hào)： | SX8725E083TRT |
| 廠商： | Semtech |
| 文件頁數(shù)： | 6/53頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS PRESSURE/TEMP SENS 12MLPD |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ZoomingADC™ |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 輸入類型： | 差分 |
| 輸出類型： | 數(shù)字 |
| 接口： | I²C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 12-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 12-MLPD |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 配用： | XE8000EV121-ND - BOARD EVAL FOR SX8723/24 |
| 其它名稱： | SX8725E083DKR |
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ADVANCED COMMUNICATIONS & SENSING
V1.8 2009 Semtech Corp.
www.semtech.com
14
SX8725
ZoomingADC for Pressure and Temperature Sensing
2-WIRE
The 2-WIRE interface gives access to the chip registers. It complies with the 2-WIRE protocol specifications,
restricted to the slave side of the communication.
General features:
Slave only operation
Fast mode operation (up to 400 kHz)
Combined read and write mode support
General call reset support
7-bit device address customization
Stretch 2-WIRE clock SCL only before sending ACK/NACK
The interface handles 2-WIRE communication at the transaction level: the processor is only aware of read and
writes transactions. A read transaction is an external request to get the content of system memory location and
a write transaction is an external request to write the content of a system memory location.
2-WIRE Communication Format
Figure 5 - Timing Diagram for Reading from SX8725
Figure 6 - Timing Diagram for Writing to the SX8725
Figure 7 - Timing Diagram for Reading an ADC Sample from SX8725
2-WIRE Address
The default 2-WIRE slave address is 1001000 in binary.
This is the standard part 2-WIRE slave address. Other addresses between 1001001 and 1001111 are available
by special request.
Start
Slave Address
ACK
W
Memory Address
ACK
Start
Slave Address
ACK
R
Data
NACK Stop
Master
SX8725
1
0
1
0
1
9
1
9
1
9
1
9
A7
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
1
SDA
SCL
Start
Slave Address
ACK
W
Memory Address
ACK
Start
Slave Address
ACK
W
Data
ACK Stop
Master
SX8725
Master
SX8725
Master
SX8725
1
9
1
9
1
9
1
9
1
0
1
0
A7
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
SDA
SCL
Start
Slave Address
ACK
W
RegACOutMsb
ACK
Start
Slave Address
ACK
R
Data
NACK Stop
Master
SX8725
1
0
1
0
1
9
1
9
1
9
1
9
0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
1
SDA
SCL
Ready
1
0
1
Start
Slave Address
ACK
W
RegACOutLsb
ACK
Start
Slave Address
ACK
R
Data
NACK Stop
Master
SX8725
1
0
1
0
1
9
1
9
1
9
1
9
0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
1
SDA
SCL
Ready
1
0
...
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