MIC280-2BM6 TR Micrel Inc, MIC280-2BM6 TR Datasheet - Page 13

• Manufacturer Part Number: MIC280-2BM6 TR
• Description: IC SUPERVISOR THERMAL SOT23-6
• Manufacturer: Micrel Inc
• Series: IttyBitty®r

Specifications of MIC280-2BM6 TR

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -55°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: MIC280-2BM6TR; MIC280-2BM6TR

MIC280
Detailed Register Descriptions
Each LSB represents one degree centigrade. The values are in a two’s complement binary format such that 0°C is reported
as 0000 0000
**TEMP0 will contain measured temperature data after the completion of one conversion.
Each LSB represents one degree centigrade. The values are in a two’s complement binary format such that 0°C is reported
as 0000 0000b. See Temperature Data Format (above) for more details.
TEMP1h can be read using either a Read_Byte operation or a Read_Word operation. Using Read_Byte will yield the 8-bit
value in TEMP1h. The complete remote temperature result in both TEMP1h and TEMP1l may be obtained by performing a
Read_Word operation on TEMP1h. The MIC280 will respond to a Read_Word with a command byte of 01h (TEMP1h) by
returning the value in TEMP1h followed by the value in TEMP1l. This guarantees that the data in both registers is from the
same temperature-to-digital conversion cycle. The Read_Word operation is diagramed in Figure 3. This is the only MIC280
register that supports Read_Word.
**TEMP1h will contain measured temperature data after the completion of one conversion.
May 2006
read-only
read-only
D[7:0]
D[7:0]
D[7]
D[7]
Bit
Bit
b
. See Temperature Data Format (above) for more details.
Power-up default value:
Read command byte:
Power-up default value:
Read command byte:
Measured temperature data for the local zone.
Measured temperature data for the remote zone, most significant byte.
read-only
read-only
D[6]
D[6]
Remote Temperature Result High-Byte Register (TEMP1h)
read-only
read-only
D[5]
D[5]
Local Temperature Result Register (TEMP0)
Remote Temperature Result High-Byte Register
Function
Function
Local Temperature Result Register
read-only
read-only
Temperature Data from ADC
Temperature Data from ADC
0000 0000
0000 0000
0000 0000
0000 0001
D[4]
D[4]
8-bits, read-only
8-bits, read only
b
b
b
b
13
= 00
= 00
= 00
= 01
read-only
read-only
D[3]
D[3]
h
h
h
h
(0°C)**
(0°C)**
read-only
read-only
D[2]
D[2]
Read only
Read only
read-only
read-only
D[1]
D[1]
Operation
Operation
read-only
read-only
D[0]
D[0]
MIC280
Micrel