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MIC280 Datasheet(PDF) 20 Page - Micrel Semiconductor

Part # MIC280
Description  Precision IttyBitty Thermal Supervisor
PDF  23 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC280 Datasheet(HTML) 20 Page - Micrel Semiconductor

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MIC280
Micrel
MIC280
20
November 2004
Local Over-Temperature Limit Register (CRIT0)
8-bits, read/write
Local Over-Temperature Limit Register
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
Over-temperature limit for local zone.
Bit
Function
Operation
D[7:0]
Over-temperature limit for the local zone.
Read/write
Power-up default value:
0100 0110b = 46h (70°C)
Read/Write command byte:
0010 0000b = 20h
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. SeeTemperature Data Format (above) for more details.
Any writes to a temperature limit register will result in the corresponding fault queue being purged and reset.
Manufacturer ID Register (MFG_ID)
8-bits, read only
Manufacturer ID Register
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
read only
read only
read only
read only
read only
read only
read only
read only
0
0
1
0
1
0
1
0
BIT(S)
FUNCTION
Operation*
D[7:0]
Identifies Micrel as the manufacturer of the device. Always returns 2Ah.
Read only. Always returns
2Ah
Power-up default value:
0010 1010b = 2Ah
Read command byte:
1111 1110b = FEh
Die Revision Register (DIE_REV)
8-bits, read only
Die Revision Register
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
read-only
read-only
read-only
read-only
reserved
reserved
reserved
reserved
MIC280 DIE REVISION NUMBER
Bit(s)
Function
Operation*
D[7:0]
Identifies the device revision number
Read only.
Power-up default value:
[Device revision number]h
Read command byte:
1111 1111b = FFh



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