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LM89 数据表(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LM89
功能描述  짹0.75째C Accurate, Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface
PDF  20 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM89 数据表(HTML) 2 Page - National Semiconductor (TI)

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Connection Diagram
MSOP-8 or SOIC-8
20041502
TOP VIEW
Ordering Information
Part Number
Package
Marking
NS Package
Number
Transport
Media
LM89CIMM
T15C
MUA08A (MSOP-8)
1000 Units onTape and Reel
LM89-1CIMM
T19C
MUA08A (MSOP-8)
1000 Units onTape and Reel
LM89CIMMX
T15C
MUA08A (MSOP-8)
3500 Units on Tape and Reel
LM89-1CIMMX
T19C
MUA08A (MSOP-8)
3500 Units on Tape and Reel
LM89CIM
LM89CIM
M08A (SOIC-8)
95 Units in Rail
LM89-1CIM
LM89-1CIM
M08A (SOIC-8)
95 Units in Rail
LM89CIMX
LM89CIM
M08A (SOIC-8)
2500 Units on Tape and Reel
LM89-1CIMX
LM89-1CIM
M08A (SOIC-8)
2500 Units on Tape and Reel
Pin Descriptions
Label
Pin #
Function
Typical Connection
V
DD
1
Positive Supply Voltage
Input
DC Voltage from 3.0 V to 3.6 V. V
DD should be
bypassed with a 0.1µF capacitor in parallel with
100pF. The 100pF capacitor should be placed as
close as possible to the power supply pin. A bulk
capacitance of approximately 10µF needs to be in
the near vicinity to the LM89 V
DD.
D+
2
Diode Current Source
To Diode Anode. Connected to remote discrete
diode-connected transistor junction or to the
diode-connected transistor junction on a remote IC
whose die temperature is being sensed. A 2.2 nF
diode bypass capacitor is required to filter high
frequency noise. Place the 2.2 nF capacitor between
and as close as possible to the LM89’s D+ and D−
pins. Make sure the traces to the 2.2 nF capacitor
are matched.
D−
3
Diode Return Current Sink
To Diode Cathode.
T_CRIT_A
4
T_CRIT Alarm Output,
Open-Drain, Active-Low
Pull-Up Resistor, Controller Interrupt or Power
Supply Shutdown Control
GND
5
Power Supply Ground
Ground
ALERT
6
Interrupt Output,
Open-Drain, Active-Low
Pull-Up Resistor, Controller Interrupt or Alert Line
SMBData
7
SMBus Bi-Directional Data
Line, Open-Drain Output
From and to Controller, Pull-Up Resistor
SMBCLK
8
SMBus Input
From Controller, Pull-Up Resistor
www.national.com
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