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LM87 Datasheet(PDF) 25 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de pieza LM87
Descripción Electrónicos  Serial Interface System Hardware Monitor with Remote Diode Temperature Sensing
PDF  32 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM87 Datasheet(HTML) 25 Page - National Semiconductor (TI)

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Functional Description (Continued)
13.3 Test Register — Address 15h
Power on default – <7:0> = 00000000 binary
Bit
Name
Read/Write
Description
0
Shutdown
Read/Write
A one places the LM87 in a lower power "Shutdown" mode.
1
Reserved
Read/Write
2
Reserved
Read/Write
3
Reserved
Read/Write
4
Reserved
Read/Write
5
Reserved
Read/Write
6
Reserved
Read/Write
7
Reserved
Read/Write
13.4 Channel Mode Register — Address 16h
Power on default – <7:0> = 00000000 binary
Bit
Name
Read/Write
Description
0
FAN1/AIN1
Read/Write
A one enables the input as AIN1, a zero enables the input as FAN1.
1
FAN2/AIN2
Read/Write
A one enables the input as AIN2, a zero enables the input as FAN2.
2
2.5V, V
CCP2/D2
Read/Write
A one enables the 2.5V, V
CCP2/D2 inputs as a second remote diode temperature input.
3
Int. V
CC Range
Read/Write
A one configures the LM87 for 5.0V V
CC measurement. A zero configures it for 3.3V
V
CC measurement.
4
IRQ0 EN
Read/Write
A one enables pin 24 as an active low interrupt input. Bit 7 must also be set to
configure the VID/IRQ inputs to IRQ mode.
5
IRQ1 EN
Read/Write
A one enables pin 23 as an active low interrupt input. Bit 7 must also be set to
configure the VID/IRQ inputs to IRQ mode.
6
IRQ2 EN
Read/Write
A one enables pin 22 as an active low interrupt input. Bit 7 must also be set to
configure the VID/IRQ inputs to IRQ mode.
7
VID/IRQ
Read/Write
A one configures the VID/IRQ inputs as Interrupt Inputs. A zero configures the VID/IRQ
inputs as VID inputs only.
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