參數(shù)資料
型號: MCP9808T-E/MS
廠商: Microchip Technology
文件頁數(shù): 21/52頁
文件大小: 1085K
描述: IC TEMP SENSOR DGTL I2C 8MSOP
標(biāo)準(zhǔn)包裝: 2,500
功能: 溫度監(jiān)控系統(tǒng)(傳感器)
傳感器類型: 內(nèi)部
感應(yīng)溫度: -40°C ~ 125°C
精確度: ±1°C
拓?fù)洌?/td> ADC(三角積分型),寄存器庫
輸出類型: 2 線串行,I²C?/SMBUS?
輸出警報:
輸出風(fēng)扇:
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: 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)
?2011 Microchip Technology Inc.
DS25095A-page 21
MCP9808
FIGURE 5-3:
Timing Diagram for Reading from the Configuration Register (see Section 4.0 Serial 
Communication).
SDA
A
C
K
0   0   1   1
A
 Configuration Pointer
0   0   0   0
A
C
K
S
2
A
1
A
0
1   2   3   4   5   6   7   8
1   2   3   4   5   6   7   8
SCL
0
Address Byte
A
C
K
0   0   1   1
A
MSB Data
A
C
K
N
A
K
S
P
2
A
1
A
0
1   2   3   4   5   6   7   8
1   2   3   4   5   6   7   8
1   2   3   4   5   6   7   8
Address Byte
LSB Data
R
MCP9808
MCP9808
MCP9808
Master
Master
W
SDA
SCL
0   0   1
0   0   0   0   0
0   0   0
0   0   0   0   1   0   0   0
Reading the CONFIG Register:
Note:
It is not necessary to
select the Register
Pointer if it was set
from   the   previous
read/write.
Note: This is an example routine (see Appendix A: Source Code).
i2c_start();
// send START command
i2c_write(AddressByte & 0xFE);
//WRITE Command (see Section 4.1.4 Address Byte)
//also, make sure bit 0 is cleared 0
i2c_write(0x01);
// Write CONFIG Register
i2c_start();
// send Repeat START command
i2c_write(AddressByte | 0x01);
//READ Command
//also, make sure bit 0 is set 1
UpperByte = i2c_read(ACK);
// READ 8 bits
//and Send ACK bit
LowerByte = i2c_read(NAK);
// READ 8 bits
//and Send NAK bit
i2c_stop();
// send STOP command
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