LM95235DIMM/NOPB National Semiconductor, LM95235DIMM/NOPB Datasheet - Page 18

• Manufacturer Part Number: LM95235DIMM/NOPB
• Description: IC TEMP SENSOR PREC REMOTE 8MSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®, TruTherm®r

Specifications of LM95235DIMM/NOPB

• Function: Hardware Monitor
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Temperature Sensor Function: Temp Sensor
• Interface Type: Serial (2-Wire)
• Package Type: MSOP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 1°C
• Temperature Sensing Range: -40°C To +85°C
• Supply Current: 350µA
• Supply Voltage Range: 3V To 3.6V
• Resolution (bits): 13bit
• Rohs Compliant: Yes
• For Use With: LM95235EVAL - BOARD EVALUATION LM95235
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM95235DIMMTR

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(Read Only Address 32h)
13-bit unsigned binary formats with filter off:
Temperature Data: LSb = 0.125°C filter off or 0.03125°C filter on.
For data synchronization purposes, the MSB register should be read first if the user wants to read both MSB and LSB registers.
The LSB will be locked after the MSB is read. The LSB will be unlocked after being read. If the user reads MSBs consecutively,
each time the MSB is read, the LSB associated with that temperature will be locked in and override the previous LSB value locked-
in.
2.2 DIODE CONFIGURATION REGISTERS
(Read/write Address BFh):
Power up default is 1Fh.
(R/W Address 11h)
10-bit plus sign format:
Power up default is 00h.
(R/W Address 12h)
10-bit plus sign format:
Power up default is 00h. LSb = 0.125 °C.
D7
0
Bits
2-1
7
6
5
4
3
0
OS/A0 Function Select
Name
Reserved
OS/A0 Function Select
Diode Fault Mask for OS
Diode Fault Mask for T_CRIT
Remote Diode TruTherm
Mode Select
Remote Filter Enable
Reserved
D6
BIT
Value
Value
Value
BIT
BIT
SIGN
0.50
Unsigned Remote Temperature LSB, Filter Off
0.5
D7
D7
D7
Remote Offset High Byte (2's Complement)
Remote Offset Low Byte (2's Complement)
OS Fault Mask
0.25
0.25
D6
D6
D6
64
D5
Configuration Register 2
Description
Reports "0" when read.
0: Address (A0) function is enabled
1: Over-temperature Shutdown (OS) is enabled
0: Off
1: On
0: Off
1: On
0: Selects Diode Model 2, MMBT3904, with TruTherm technology
disabled.
1: Selects Diode Model 1, A typical Intel Processor, with 65 nm or 90
nm technology, and TruTherm technology enabled.
00: Filter Disable
01: Reserved
10: Reserved
11: Filter Enable
Reports "1" when read.
0.125
0.125
D5
D5
D5
32
18
T_CRIT
D4
D4
D4
16
Mask
0
0
D4
D3
D3
D3
0
8
0
TruTherm Select
D2
D2
D2
0
4
0
D3
D1
D1
D1
0
2
0
D0
D0
D0
0
1
0
RFE1
D2
RFE0
D1
D0
1