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LM86 Datasheet(PDF) 15 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM86
Description  짹0.75째C Accurate, Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface
PDF  21 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM86 Datasheet(HTML) 15 Page - National Semiconductor (TI)

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2.0 LM86 REGISTERS (Continued)
2.4 CONFIGURATION REGISTER
(Read Address 03h /Write Address 09h):
D7
D6
D5
D4
D3
D2
D1
D0
ALERT mask
RUN/STOP
0
Remote
T_CRIT_A
mask
0
Local
T_CRIT_A
mask
0
Fault Queue
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
(Read Address 04h /Write
Address 0Ah)
Value
Conversion
Rate
00
62.5 mHz
01
125 mHz
02
250 mHz
03
500 mHz
04
1 Hz
05
2 Hz
(Read Address 04h /Write
Address 0Ah)
Value
Conversion
Rate
06
4 Hz
07
8 Hz
08
16 Hz
09
32 Hz
10-255
Undefined
2.6 LOCAL and REMOTE HIGH SETPOINT REGISTERS (LHS, RHSHB, and RHSLB)
(Read Address 05h, 07h /Write Address 0Bh, 0Dh):
BIT
D7
D6
D5
D4
D3
D2
D1
D0
Value
SIGN
64
32
16
8
4
2
1
For LHS and RHSHB: HIGH setpoint temperature data. Power up default is LHIGH = RHIGH = 70˚C. 1LSB = 1˚C. Two’s
complement format.
(Read/Write Address 13h):
BIT
D7
D6
D5
D4
D3
D2
D1
D0
Value
0.5
0.25
0.125
0000
0
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)
(Read Address 06h, 08h, /Write Address 0Ch, 0Eh):
BIT
D7
D6
D5
D4
D3
D2
D1
D0
Value
SIGN
64
32
16
8
4
2
1
For LLS and RLSHB: HIGH setpoint temperature data. Power up default is LHIGH = RHIGH = 0˚C. 1LSB = 1˚C. Two’s
complement format.
(Read/Write Address 14h):
BIT
D7
D6
D5
D4
D3
D2
D1
D0
Value
0.5
0.25
0.125
0000
0
www.national.com
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