LM92

SNIS110D – MARCH 2000 – REVISED MARCH 2013

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Note: Event Interrupt mode is drawn as if the user is reading the part. If the user doesn't read, the outputs would go

low and stay that way until the LM92 is read. Comparator Interrupt Mode is drawn as if the user never reads the part.

If the user does read, the outputs will go high once read instruction is executed and, if the fault condition still exists,

go low at the end of the next conversion.

Figure 7. Temperature Response Diagram

TEMPERATURE DATA FORMAT

Temperature data can be read from the Temperature and Set Point registers; and written to the Set Point

registers. Temperature data can be read at any time, although reading faster than the conversion time of the

LM92 will prevent data from being updated. Temperature data is represented by a 13-bit, two's complement word

with an LSB (Least Significant Bit) equal to 0.0625 °C:

Table 2. Temperature Data Output

Temperature

Digital Output

Binary

Hex

+130°C

0 1000 0 010 0000

08 20h

+125 °C

0 0111 1101 0000

07 D0h

+80 °C

0 0101 0000 0000

05 00h

+64 °C

0 0100 0000 0000

04 00h

+25 °C

0 0001 1001 0000

01 90h

+10 °C

0 0000 1010 0000

00 A0h

+2 °C

0 0000 0010 0000

00 20h

10

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