LM63CIMA/NOPB National Semiconductor, LM63CIMA/NOPB Datasheet - Page 12

• Manufacturer Part Number: LM63CIMA/NOPB
• Description: IC TEMP SENSR REMOTE DIODE 8SOIC
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM63CIMA/NOPB

• Function: Fan Control, Temp Monitor
• Topology: ADC (Sigma Delta), Comparator, Fan Speed Control, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 1°C
• Supply Current: 1.3mA
• Supply Voltage Range: 3V To 3.6V
• Resolution (bits): 11bit
• Sensor Case Style: SOIC
• No. Of Pins: 8
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Accuracy %: 1°C
• For Use With: LM63EVAL - BOARD EVALUATION LM63
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM63CIMA; LM63CIMA

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FIGURE 9. Fault Queue Temperature Response Diagram
1.11 ONE-SHOT REGISTER
The One-Shot Register is used to initiate a single conversion
and comparison cycle when the device is in standby mode,
after which the data returns to standby. This is not a data reg-
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ister. A write operation causes the one-shot conversion. The
data written to this address is irrelevant and is not stored. A
zero will always be read from this register.
1.12 SERIAL INTERFACE RESET
In the event that the SMBus Master is reset while the LM63
is transmitting on the SMBDAT line, the LM63 must be re-
turned to a known state in the communication protocol. This
may be done in one of two ways:
1.
2.
When SMBDAT is Low, the LM63 SMBus state machine
resets to the SMBus idle state if either SMBData or
SMBCLK are held Low for more than 35 ms (t
All devices are to timeout when either the SMBCLK or
SMBDAT lines are held Low for 25 ms – 35 ms.
Therefore, to insure a timeout of all devices on the bus,
either the SMBCLK or the SMBData line must be held
Low for at least 35 ms.
With both SMBDAT and SMBCLK High, the master can
initiate an SMBus start condition with a High to Low
transition on the SMBDAT line. The LM63 will respond
properly to an SMBus start condition at any point during
the communication. After the start the LM63 will expect
an SMBus Address address byte.
TIMEOUT
).