lm95172q National Semiconductor Corporation, lm95172q Datasheet - Page 18

• Manufacturer Part Number: lm95172q
• Description: Digital Temperature Sensor In Die Form With ?1?c Accuracy From 130?c To 160?c
• Manufacturer: National Semiconductor Corporation

www.national.com
1.7.4 T
(Read/Write) Pointer Address: 82h (Read); 02h (Write)
Bit <15:5>: Upper-Limit Temperature byte. If the measured temperature, stored in the temperature register, exceeds this user-
programmable temperature limit, the OVERTEMP pad will assert and the T
Bit <4:0>: Reserved. Returns all zeroes when read.
Reset State: 4880h (+145°C)
Reset Conditions: Upon Power-on Reset.
1.7.5 T
(Read/Write) Pointer Address: 83h (Read); 03h (Write)
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 pad will not assert and the T
set to "1".
Bit <4:0>: Reserved. Returns all zeroes when read.
Reset State: 4600h (+140°C)
Reset Conditions: Upon Power-on Reset.
1.7.6 MFGID: Manufacturer, Product, and Step ID Register
(Read Only) Pointer Address: 87h
Bit <15:8>: Manufacturer Identification Byte. Always returns 80h to uniquely identify the manufacturer as National Semiconductor
Corporation.
Bit <7:4>: Product Identification Nibble. Always returns 30h to uniquely identify this part as the LM95172Q.
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.
HIGH
LOW
: Lower Limit Register
: Upper Limit Register
Sign
Sign
D15
D15
D15
1°C
1°C
D7
D7
D7
1
0
128°C
128°C
0.5°C
0.5°C
D14
D14
D14
D6
D6
D6
0
0
0.25°C
0.25°C
64°C
64°C
D13
D13
D13
D5
D5
D5
0
1
32°C
32°C
D12
D12
D12
D4
D4
D4
0
1
18
16°C
16°C
D11
D11
D11
D3
D3
D3
0
0
HIGH
Reserved
Reserved
flag in the Control/Status register will be set to "1".
D10
D10
D10
8°C
8°C
D2
D2
D2
0
0
LOW
flag in the Control/Status register will be
4°C
4°C
D9
D1
D9
D1
D9
D1
0
0
2°C
2°C
D8
D0
D8
D0
D8
D0
0
0