Datasheet

LM81
SNAS011E –JUNE 1999–REVISED FEBRUARY 2002 www.ti.com
Address A6–A0
(1)
Description
(1)
31h +5Vin High Limit
32h +5Vin Low Limit
33h +12Vin High Limit
34h +12Vin Low Limit
35h Vccp2 High Limit
36h Vccp2 Low Limit
37h T_CRIT Limit (Extended Mode)
38h LOW Limit (Extended Mode)
39h HIGH Temperature Limit
3Ah HIHYST Temperature Limit
3Bh FAN1 Fan Count Limit
(3)
3Ch FAN2 Fan Count Limit
(3)
3Dh Reserved
3Eh Company Identification. The number in this register identifies Texas Instruments (0000 0001)
3Fh Stepping Register: LM81CIM revision number 03h (0000 0011)
LM81BIM revision number 04h (0000 0100)
(3) It is the number of counts of the internal clock for the Low Limit of the fan speed.
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