MIC281-3YM6 TR Micrel Inc, MIC281-3YM6 TR Datasheet - Page 8

• Manufacturer Part Number: MIC281-3YM6 TR
• Description: IC SUPERVISOR THERMAL SOT23-6
• Manufacturer: Micrel Inc
• Series: IttyBitty®r

Specifications of MIC281-3YM6 TR

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Register Bank
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Type: I²C™/SMBus™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MIC281-3YM6TR; MIC281-3YM6TR

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 0000b. See Temperature Data Format (above) for more details.
**TEMP will contain measured temperature data after the completion of one conversion.
MIC281
read-only
Reserved
reserved
Bits(s)
* Any write to CONFIG will result in any A/D conversion in progress being aborted and the result discarded. The A/D will begin a new conver-
SHDN
D[7]
D[7:0]
D[7]
D[5:0]
sion sequence once the write operation is complete.
Bit
D7
Power-up default value: 0000 0000
Command byte:
Power-up default value: x0xx xxxx
Command byte:
Measured temperature data for the remote zone
Function
Reserved
Shutdown bit
Reserved
Shutdown
read-only
reserved
(SHDN)
D[6]
D[6]
read-only
reserved
D[5]
D[5]
Remote Temperature Result (TEMP)
0000 0001
0000 0011
Function
Remote Temperature Result Register
Configuration Register (CONFIG)
read-only
Temperature Data from ADC
reserved
Configuration Register
D[4]
D[4]
b
8-bits, read/write
8-bits, read-only
b
b
b
(Not in shutdown mode)
= 03
= 00
= 01
h
h
h
8
(0°C)**
read-only
reserved
D[3]
D[3]
reserved
read-only
reserved
D[2]
D[2]
Operation*
Always write as zero;
reads undefined
0 = normal operation, 1 =
shutdown
Always write as zero;
reads undefined
Read-only
read-only
reserved
D[1]
D[1]
Operation
November 2004
write-only
read-only
D[0]
D[0]