LM86CIMM National Semiconductor, LM86CIMM Datasheet - Page 16

• Manufacturer Part Number: LM86CIMM
• Description: IC DIODE/DGTL TEMP SENSOR 8-MSOP
• Manufacturer: National Semiconductor

Specifications of LM86CIMM

• Function: Hardware Monitor
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LM86CIMMTR

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2.0 LM86 REGISTERS
For RLSLB: Remote HIGH Setpoint Low Byte temperature data. Power up default is 0˚C. 1LSB = 0.125˚C. Two’s complement
format.
2.8 REMOTE TEMPERATURE OFFSET REGISTERS (RTOHB and RTOLB)
For RTOHB: Remote Temperature Offset High Byte. Power up default is LHIGH = RHIGH = 0˚C. 1LSB = 1˚C. Two’s complement
format.
For RTOLB: Remote Temperature Offset High Byte. Power up default is 0˚C. 1LSB = 0.125˚C. Two’s complement format.
The offset value written to these registers will automatically be added to or subtracted from the remote temperature measurement
that will be reported in the Remote Temperature registers.
2.9 LOCAL and REMOTE T_CRIT REGISTERS (RCS and LCS)
D7–D0: T_CRIT setpoint temperature data. Power up default is T_CRIT = 85˚C. 1 LSB = 1˚C, two’s complement format.
2.10 T_CRIT HYSTERESIS REGISTER (TH)
D7–D0: T_CRIT Hysteresis temperature. Power up default is TH = 10˚C. 1 LSB = 1˚C, maximum value = 31.
2.11 FILTER and ALERT CONFIGURE REGISTER
D7-D3: is not defined defaults to "0".
D2-D1: input filter setting as defined the table below:
Level 2 sets maximum filtering.
D0: when set to "1" comparator mode is enabled.
2.12 MANUFACTURERS ID REGISTER
(Read Address FEh) Default value 01h.
2.13 DIE REVISION CODE REGISTER
(Read Address FFh) Default value 11hexadecimal or 17 decimal. This register will increment by 1 every time there is a revision
to the die by National Semiconductor.
3.0 Application Hints
The LM86 can be applied easily in the same way as other
integrated-circuit temperature sensors, and its remote diode
(Read and Write Address BFh):
Value
BIT
(Read/Write Address 11h):
(Read/Write Address 12h):
(Read/Write Address 20h, 19h):
(Read and Write Address 21h):
Value
Value
Value
Value
BIT
BIT
BIT
BIT
D7
0
SIGN
SIGN
(Continued)
0.5
D7
D7
D7
D7
D6
0
D2
0.25
0
0
1
1
D6
D6
D6
D6
64
64
D5
0
0.125
D5
D5
D5
D5
32
32
D4
0
D1
16
0
1
0
1
D4
D4
D4
D4
16
16
16
0
sensing capability allows it to be used in new ways as well.
It can be soldered to a printed circuit board, and because the
path of best thermal conductivity is between the die and the
D3
0
D3
D3
D3
D3
8
0
8
8
Filter Level
No Filter
Level 1
Level 1
Level 2
D2
Filter Level
D2
D2
D2
D2
4
0
4
4
D1
D1
D1
D1
D1
2
0
2
2
Configure
ALERT
D0
D0
D0
D0
D0
1
0
1
1