ASC7531B 查看數據表（PDF） - Unspecified

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产品描述 (功能)

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ASC7531B

LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR

Unspecified 

aSC7531A / aSC7531B

Sensor Command Summary

GetIntTemp()

Returns the temperature of the device’s internal thermal sensor.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x02

0x00

Example bus transaction for a thermal sensor device located at address 0x48 returning a value of 60°C:

8

8

8

8

Target Address

Write Length

Read Length

Command

0x48

0x01

0x02

0x00

8

FCS

0x6A

8

8

LSB

MSB

8

FCS

0x00

0x0F

0x2D

Figure 9. Get Internal Temperature Command Example

GetExtTemp()

Returns the temperature of the external thermal diode.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x02

0x01

GetAllTemps()

Returns a 4-byte block of data containing both the Internal and External temperatures in the following order Internal then External

temperatures.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x04

0x00

GetVolt12V()

Returns the voltage attached to the 12 volt pin.

Write Data Length:

Read Data Length:

Command Code:

0x01

0x02

0x10

Example bus transaction for a multifunction device located at address 0x48 returning a value of 12 volts:

8

Target Address

0x48

8

Write Length

0x01

8

Read Length

0x02

8

Command

0x10

8

FCS

0x1A

8

8

8

LSB

MSB

FCS

0x00

0x30

0x90

Figure 10. Example Read of 12-Volt Value

© Andigilog, Inc. 2006

-8-

www.andigilog.com

December 2006 - 70A05012

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