LM89CIMM National Semiconductor, LM89CIMM Datasheet - Page 6

• Manufacturer Part Number: LM89CIMM
• Manufacturer: National Semiconductor

Specifications of LM89CIMM

• Temperature Sensor Function: Temp Sensor
• Interface Type: Serial (2-Wire)
• Output Type: Digital
• Package Type: MSOP
• Operating Temperature (min): 0C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / Rohs Status: Not Compliant

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Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its rated operating conditions.
Note 2: When the input voltage (V
Parasitic components and or ESD protection circuitry are shown in the figure below for the LM89’s pins. The nominal breakdown voltage of D3 is 6.5 V. Care should
be taken not to forward bias the parasitic diode, D1, present on pins: D+, D−. Doing so by more than 50 mV may corrupt a temperature measurements.
Note: An “x” indicates that the diode exists.
Note 3: See the URL ”http://www.national.com/packaging/“ for other recommendations and methods of soldering surface mount devices.
Note 4: Human body model, 100pF discharged through a 1.5kΩ resistor. Machine model, 200pF discharged directly into each pin.
Note 5: Thermal resistance junction-to-ambient when attached to a printed circuit board with 2 oz. foil:
Note 6: Typicals are at T
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: Local temperature accuracy does not include the effects of self-heating. The rise in temperature due to self-heating is the product of the internal power
dissipation of the LM89 and the thermal resistance. See (Note 5) for the thermal resistance to be used in the self-heating calculation.
Note 9: Quiescent current will not increase substantially with an SMBus.
Note 10: This specification is provided only to indicate how often temperature data is updated. The LM89 can be read at any time without regard to conversion state
(and will yield last conversion result).
Note 11: Default values set at power up.
Note 12: The output rise time is measured from (V
Note 13: The output fall time is measured from (V
Note 14: Holding the SMBData and/or SMBCLK lines Low for a time interval greater than t
SMBData and SMBCLK pins to a high impedance state.
– SOIC-8 = 168˚C/W
– MSOP-8 = 210˚C/W
Pin Name
V
D+
D−
T_CRIT_A
ALERT
SMBData
SMBCLK
DD
PIN #
1
2
3
4
6
7
8
A
= 25˚C and represent most likely parametric norm.
I
) at any pin exceeds the power supplies (V
D1
x
x
D2
x
x
IN(1)
IN(0)
FIGURE 1. ESD Protection Input Structure
min - 0.15V) to (V
max + 0.15V) to (V
D3
SMBus Communication
D4
IN(1)
IN(1)
min + 0.15V).
I
min − 0.15V).
<
6
GND or V
D5
x
TIMEOUT
I
>
D6
V
x
x
DD
), the current at that pin should be limited to 5 mA.
will reset the LM89’s SMBus state machine, therefore setting
20041513
D7
x
x
x
x
x
R1
x
x
x
x
SNP
x
x
x
x
ESD CLAMP
20041540
x
x
x