MCP9902 datasheet(23/50 Pages) MICROCHIP

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 2015-2016 Microchip Technology Inc.

DS20005382C-page 23

MCP9902/3/4

)

EXT(N) TEMP HI BYTE: EXTERNAL DIODE HIGH BYTE TEMPERATURE DATA

R-0

EXT(N)_HB<7:0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as 0

-n = Value at POR

‘1’ = bit is set

‘0’ = Bit is cleared

x = Bit in unknown

7-0

EXT(N)_HB<7:0>

: 2’s complement integer value of the External Diode n temperature reading, where

n = 1 to 3, depending on the device

EXT(N) TEMP LO BYTE: EXTERNAL DIODE LOW BYTE TEMPERATURE DATA

R-0

U-0

EXT(N)_LB<2:0>

—

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as 0

-n = Value at POR

‘1’ = bit is set

‘0’ = Bit is cleared

x = Bit in unknown

7-5

EXT(N)_LB<2:0>

: Fractional portion of the Internal Diode Temperature to be added to the value at

111

= 0.875°C

110

= 0.750°C

101

= 0.625°C

100

= 0.500°C

011

= 0.375°C

010

= 0.250°C

001

= 0.125°C

000

= 0.000°C

4-0

Unimplemented

: Read as ‘0’

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