LM83CIMQA National Semiconductor, LM83CIMQA Datasheet - Page 15

• Manufacturer Part Number: LM83CIMQA
• Description: Temperature Sensor IC
• Manufacturer: National Semiconductor

Specifications of LM83CIMQA

• Peak Reflow Compatible (260 C): No
• Ic Function: Temperature Sensor IC
• Supply Voltage Max: 3.6V
• 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
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

1.0 Functional Description
D5: T_CRIT mask for Diode 1, when set to 1 a Diode 1 temperature reading that exceeds T_CRIT setpoint will not activate the
T_CRIT_A pin.
D4: T_CRIT mask for Diode 2, when set to 1 a Diode 2 temperature reading that exceeds T_CRIT setpoint will not activate the
T_CRIT_A pin.
D3: T_CRIT mask for Diode 3, when set to 1 a Diode 3 temperature reading that exceeds T_CRIT setpoint will not activate the
T_CRIT_A pin.
D2: T_CRIT mask for Local reading, when set to 1 a Local temperature reading that exceeds T_CRIT setpoint will not activate
the T_CRIT_A pin.
D1: INT active state inversion. When INT Inversion is set to a 1 the active state of the INT output will be a logical high. A low would
then select an active state of a logical low.
D6 and D0: These bits are always set to 0 and reserved for future use. A write of 1 will return a 0 when read.
2.6 LOCAL, DIODE 1, DIODE 2 and DIODE 3 HIGH SETPOINT REGISTERS (LHS, D1RHS, D2RHS and D3RHS)
D7–D0: HIGH setpoint temperature data. Power up default is LHIGH = RD1HIGH=RD2HIGH=RD3HIGH = 127˚C.
2.7 T_CRIT REGISTER (TCS)
D7–D0: T_CRIT setpoint temperature data. Power up default is T_CRIT = 127˚C.
(Read Address 05h, 07h, 38h, 3Ah /Write Address 0Bh, 0Dh,
50h, 52h):
(Read Address 42h/Write Address 5Ah):
MSB
MSB
D7
D7
Bit 6
Bit 6
D6
D6
Bit 5
Bit 5
D5
D5
Bit 4
Bit 4
D4
D4
Bit 3
Bit 3
D3
D3
Bit 2
Bit 2
D2
D2
(Continued)
Bit 1
Bit 1
D1
D1
LSB
LSB
D0
D0
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