LM87CIMT National Semiconductor, LM87CIMT Datasheet - Page 7

• Manufacturer Part Number: LM87CIMT
• Description: Temperature Sensor IC
• Manufacturer: National Semiconductor

Specifications of LM87CIMT

• Peak Reflow Compatible (260 C): No
• Ic Function: Temperature Sensor IC
• Supply Voltage Max: 3.8V
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C To +125°C
• Temperature Sensor Function: Temp Sensor
• Interface Type: Serial (2-Wire)
• Output Type: Digital
• Package Type: TSSOP
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Operating Supply Voltage (typ): 3.3V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

An x indicates that the diode exists.
Note 9: Typicals are at T
Note 10: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
Note 11: The Temperature Error specification does not include an additional error of ±1°C, caused by the quantization error.
Note 12: The Temperature Error will vary less than ±1°C over the operating Vcc range of 2.8V to 3.8V.
Note 13: TUE (Total Unadjusted Error) includes Offset, Gain and Linearity errors of the ADC.
Note 14: Total Monitoring Cycle Time includes all diode checks, temperature conversions and analog input voltage conversions. Fan tachometer readings are
determined separately and do not affect the completion of the monitoring cycle.
Note 15: This is the lowest DAC code guaranteed to give a non-zero DAC output.
Note 16: The total fan count is based on 2 pulses per revolution of the fan tachometer output.
Note 17: Timing specifications are tested at the specified logic levels, V
ADD/NTEST_OUT
FAN1–FAN2
Pin Name
SMBData
SMBCLK
RESET#
INT#
CI
J
= T
D1
x
x
x
x
x
x
x
A
= 25 °C and represent most likely parametric norm.
D2
x
x
x
x
x
x
x
D3
x
x
x
x
x
x
x
R1
0
0
0
0
0
0
0
FIGURE 2. ESD Protection Input Structure
R2
∞
∞
∞
∞
∞
∞
∞
100k
100k
R3
∞
∞
∞
∞
∞
1M
1M
1M
1M
1M
1M
1M
R4
IL
for a falling edge and V
7
+3.3Vin, +2.5Vin, Vccp1,
DACOut/NTEST_IN
VID4–VID0
Pin Name
THERM
+12Vin
Vccp2
+5Vin
IH
for a rising edge.
10099505
D1
x
x
x
x
x
x
D2
x
x
x
x
x
x
D3
x
x
x
x
R1
0
0
0
R1+R2
≈
R1+R2
≈
R1+R2
≈
130k
130k
130k
R2
∞
∞
∞
www.national.com
100k 1M
100k 1M
R3
∞
∞
∞
∞
1M
1M
R4