LM86CIM/NOPB National Semiconductor, LM86CIM/NOPB Datasheet - Page 15

IC TEMP SENSOR DGTL 8-SOIC

LM86CIM/NOPB

Manufacturer Part Number
LM86CIM/NOPB
Description
IC TEMP SENSOR DGTL 8-SOIC
Manufacturer
National Semiconductor
Datasheets

Specifications of LM86CIM/NOPB

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-SOIC (3.9mm Width)
Ic Output Type
Digital
Sensing Accuracy Range
± 1°C
Supply Current
800µA
Supply Voltage Range
3V To 3.6V
Resolution (bits)
11bit
Sensor Case Style
SOIC
No. Of Pins
8
Filter Terminals
SMD
Rohs Compliant
Yes
Accuracy %
1°C
For Use With
LM86EVAL/NOPB - BOARD EVALUATION LM86
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
2.0 LM86 REGISTERS
2.4 CONFIGURATION REGISTER
Power up default is with all bits “0” (zero)
D7: ALERT mask: When set to “1” ALERT interrupts are masked.
D6: RUN/STOP: When set to “1” SHUTDOWN is enabled.
D5: is not defined and defaults to “0”.
D4: Remote T_CRIT mask: When set to “1” a diode temperature reading that exceeds T_CRIT setpoint will not activate the
T_CRIT_A pin.
D3: is not defined and defaults to “0”.
D2: Local T_CRIT mask: When set to “1” a Local temperature reading that exceeds T_CRIT setpoint will not activate the
T_CRIT_A pin.
D1: is not defined and defaults to “0”.
D0: Fault Queue: when set to “1” three consecutive remote temperature measurements outside the HIGH, LOW, or T_CRIT
setpoints will trigger an “Outside Limit” condition resulting in setting of status bits and associated output pins..
2.5 CONVERSION RATE REGISTER
2.6 LOCAL and REMOTE HIGH SETPOINT REGISTERS (LHS, RHSHB, and RHSLB)
For LHS and RHSHB: HIGH setpoint temperature data. Power up default is LHIGH = RHIGH = 70˚C. 1LSB = 1˚C. Two’s
complement format.
For RHSLB: Remote HIGH Setpoint Low Byte temperature data. Power up default is 0˚C. 1LSB = 0.125˚C. Two’s complement
format.
2.7 LOCAL and REMOTE LOW SETPOINT REGISTERS (LLS, RLSHB, and RLSLB)
For LLS and RLSHB: HIGH setpoint temperature data. Power up default is LHIGH = RHIGH = 0˚C. 1LSB = 1˚C. Two’s
complement format.
(Read Address 03h /Write Address 09h):
ALERT mask
D7
(Read Address 04h /Write
Address 0Ah)
RUN/STOP
Value
00
01
02
03
04
05
D6
(Read Address 05h, 07h /Write Address 0Bh, 0Dh):
(Read/Write Address 13h):
(Read Address 06h, 08h, /Write Address 0Ch, 0Eh):
(Read/Write Address 14h):
Value
Value
Value
Value
BIT
BIT
BIT
BIT
Conversion
62.5 mHz
125 mHz
250 mHz
500 mHz
Rate
1 Hz
2 Hz
SIGN
SIGN
D5
(Continued)
0
0.5
0.5
D7
D7
D7
D7
0.25
0.25
D6
D6
D6
D6
64
64
T_CRIT_A
Remote
mask
0.125
0.125
D4
D5
D5
D5
D5
32
32
15
D4
D4
D4
D4
16
16
0
0
D3
0
D3
D3
D3
D3
8
0
8
0
D2
D2
D2
D2
4
0
4
0
(Read Address 04h /Write
Address 0Ah)
T_CRIT_A
Local
mask
10-255
Value
D2
D1
D1
D1
D1
06
07
08
09
2
0
2
0
D0
D0
D0
D0
1
0
1
0
Conversion
Undefined
16 Hz
32 Hz
D1
Rate
4 Hz
8 Hz
0
Fault Queue
www.national.com
D0

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