LM89

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SNIS128D – AUGUST 2002 – REVISED JUNE 2014

D7–D0: T_CRIT Hysteresis temperature. Power up default is TH = 10°C. 1 LSB = 1°C, maximum value = 31.

9.6.11 Filter And Alert Configure Register

Table 15. Filter And Alert Configure Register (Read And Write Address BFh):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

0

0

0

0

0

Filter Level

ALERT Configure

D7-D3: is not defined defaults to "0".

D2-D1: input filter setting as defined the table below:

D2

D1

Filter Level

0

0

No Filter

0

1

Level 1

1

0

Level 1

1

1

Level 2

Level 2 sets maximum filtering.

D0: when set to "1" comparator mode is enabled.

9.6.12 Manufacturers Id Register

(Read Address FEh) The default value is 01h.

9.6.13 Die Revision Code Register

(Read Address FFh) The LM89C version has a default value of 31h or 49 decimal. The LM89-1C version has a

default value of 34h or 52 decimal. The LM89-1D has a default value of 35h or 53 decimal. This register will

increment by 1 every time there is a revision to the die by Texas Instruments.

Copyright © 2002–2014, Texas Instruments Incorporated

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