LM84BIMQA National Semiconductor, LM84BIMQA Datasheet - Page 13

• Manufacturer Part Number: LM84BIMQA
• Description: IC TEMP SENSOR DIGITAL 16-SSOP
• Manufacturer: National Semiconductor

Specifications of LM84BIMQA

• Function: Hardware Monitor
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-LSSOP (0.154", 3.91mm Width)
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 1°C
• Supply Current: 500µA
• Supply Voltage Range: 3V To 3.6V
• Resolution (bits): 8bit
• Sensor Case Style: QSOP
• No. Of Pins: 16
• Filter Terminals: SMD
• Rohs Compliant: No
• Accuracy %: 1°C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *LM84BIMQA

1.0 Functional Description
(Continued)
1.8.6 LOCAL AND REMOTE T_CRIT REGISTERS
(Read/Write):
D7
D6
D5
D4
D3
D2
D1
D0
MSB
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
LSB
D7–D0: RT_CRIT and LT_CRIT setpoint temperature data. Power up default is LT_CRIT = RT_CRIT = 127˚C.
2.0 SMBus Timing Diagrams
DS100961-10
(a) Serial Bus Write to the internal Command Register followed by a the Data Byte
DS100961-11
(b) Serial Bus Write to the internal Command Register
DS100961-12
(c) Serial Bus Read from a Register with the internal Command Register preset to desired value.
FIGURE 4. Serial Bus Timing Diagrams
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