LM75BIMM-5/NOPB National Semiconductor, LM75BIMM-5/NOPB Datasheet - Page 12

• Manufacturer Part Number: LM75BIMM-5/NOPB
• Description: IC TEMP SENSOR DGTL 8-MSOP
• Manufacturer: National Semiconductor

Specifications of LM75BIMM-5/NOPB

• Function: Temp Sensor, Watchdog
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 125°C
• Output Type: I²C™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM75BIMM-5

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1.11 POINTER REGISTER (Selects which registers will be
read from or written to):
P0-P1: Register Select:
P3–P7: Must be kept zero.
1.12 TEMPERATURE REGISTER (Read Only):
D0–D6: Undefined.
1.13 CONFIGURATION REGISTER (Read/Write):
Power up default is with all bits “0” (zero).
D0: Shutdown: When set to 1 the LM75 goes to low power shutdown mode.
D1: Comparator/Interrupt mode: 0 is Comparator mode, 1 is Interrupt mode.
D2: O.S. Polarity: 0 is active low, 1 is active high. O.S. is an open-drain output under all conditions.
D3–D4: Fault Queue: Number of faults necessary to detect before setting O.S. output to avoid false tripping due to noise. Faults
are determind at the end of a conversion. See specified temperature conversion time in the electrical tables.
D5–D7: These bits are used for production testing and must be kept zero for normal operation.
1.14 T
D0–D6: Undefined
1.15 PRODID: PRODUCT ID REGISTER (LM75A Only)
(Read Only) Pointer Address: 07h
D4--D7 Product Identification Nibble. Always returns Ah to uniquely identify this part as the LM75A.
D0--D3 Die Revision Nibble. Returns 1h to uniquely identify the revision level as one.
MSB
MSB
D15
D15
HYST
Bit 7
Bit 7
D14
D14
AND T
D4
0
0
1
1
Bit 6
Bit 6
D13
D13
OS
D7
D3
REGISTER (Read/Write):
0
0
1
0
1
D7
1
Bit 5
Bit 5
D7–D15: T
P2
D12
D12
0
0
0
0
1
D7–D15: Temperature Data. One LSB = 0.5°C. Two's complement format.
P7
0
1 (Power-up default)
D6
Number of Faults
0
Bit 4
Bit 4
D11
D11
D6
P1
0
0
0
1
1
1
HYST
P6
0
2
4
6
D5
0
Or T
Bit 3
Bit 3
D10
D10
P0
0
1
0
1
1
D5
OS
1
P5
0
Trip Temperature Data. Power up default is T
Bit 2
D4
Fault Queue
Bit 2
D9
D9
Temperature (Read only) (Power-up default)
Configuration (Read/Write)
T
T
Product ID Register (LM75A Only)
HYST
OS
(Read/Write)
P4
D4
0
Bit 1
Bit 1
0
(Read/Write)
D8
D8
D3
12
P3
LSB
LSB
0
D7
D7
D3
0
O.S. Polarity
Register
D6
D6
X
X
P2
D2
D2
0
Register Select
D5
D5
X
X
P1
Cmp/Int Shutdown
D4
D4
D1
X
X
D1
0
OS
= 80°C, T
P0
D3
D3
X
X
D0
D0
1
HYST
D2
D2
X
X
= 75°C
D1
D1
X
X
D0
D0
X
X