Datasheet

LM95172
SNOSB33B –DECEMBER 2009–REVISED MARCH 2013 www.ti.com
Reset Conditions: Upon Power-on Reset.
T
HIGH
: Upper Limit Register
(Read/Write) Pointer Address: 82h (Read); 02h (Write)
D15 D14 D13 D12 D11 D10 D9 D8
Sign 128°C 64°C 32°C 16°C 8°C 4°C 2°C
D7 D6 D5 D4 D3 D2 D1 D0
1°C 0.5°C 0.25°C Reserved
Bit <15:5>: Upper-Limit Temperature byte. If the measured temperature, stored in the temperature register,
exceeds this user-programmable temperature limit, the OVERTEMP pin will assert and the T
HIGH
flag in the
Control/Status register will be set to "1".
Bit <4:0>: Reserved. Returns all zeroes when read.
Reset State: 4880h (+145°C)
Reset Conditions: Upon Power-on Reset.
T
LOW
: Lower Limit Register
(Read/Write) Pointer Address: 83h (Read); 03h (Write)
D15 D14 D13 D12 D11 D10 D9 D8
Sign 128°C 64°C 32°C 16°C 8°C 4°C 2°C
D7 D6 D5 D4 D3 D2 D1 D0
1°C 0.5°C 0.25°C Reserved
Bit <15:5>: Lower-Limit Temperature byte. If the measured temperature that is stored in the temperature register
falls below this user-programmable temperature limit, the OVERTEMP pin will not assert and the T
LOW
flag in the
Control/Status register will be set to "1".
Bit <4:0>: Reserved. Returns all zeroes when read.
Reset State: 4600h (+140°C)
Reset Conditions: Upon Power-on Reset.
MFGID: Manufacturer, Product, and Step ID Register
(Read Only) Pointer Address: 87h
D15 D14 D13 D12 D11 D10 D9 D8
1 0 0 0 0 0 0 0
D7 D6 D5 D4 D3 D2 D1 D0
0 0 1 1 0 0 0 0
Bit <15:8>: Manufacturer Identification Byte. Always returns 80h to uniquely identify the manufacturer as Texas
Instruments Corporation.
Bit <7:4>: Product Identification Nibble. Always returns 30h to uniquely identify this part as the LM95172EWG.
Bit <3:0>: Die Revision Nibble. Returns 0h to uniquely identify the revision level as zero.
Reset State: 8030h
Reset Conditions: Upon Power-on Reset.
16 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated
Product Folder Links: LM95172