LM95214EB/NOPB National Semiconductor, LM95214EB/NOPB Datasheet - Page 19

• Manufacturer Part Number: LM95214EB/NOPB
• Description: BOARD EVALUATION FOR LM95214
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM95214EB/NOPB

• Sensor Type: Temperature
• Sensing Range: -40°C ~ 140°C
• Interface: SMBus (2-Wire/I²C)
• Sensitivity: ±1°C
• Voltage - Supply: 3 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: LM95214
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM95214EB

Register Name
TCRIT1 Mask
TCRIT2 Mask
TCRIT3 Mask
Local Tcrit Limit
Remote 1 Tcrit-1 Limit
Remote 2 Tcrit-1 Limit
Remote 3 Tcrit Limit
Remote 4 Tcrit Limit
Remote 1 Tcrit-2 and Tcrit-3 Limit
Remote 2 Tcrit-2 and Tcrit-3 Limit
Common Tcrit Hysteresis
Manufacturer ID
Revision ID
Register Name
Local Temp MSB
Local Temp LSB
2.1 VALUE REGISTERS
For data synchronization purposes, the MSB register should be read first if the user wants to read both MSB and LSB registers.
The LSB will be locked after the MSB is read. The LSB will be unlocked after being read. If the user reads MSBs consecutively,
each time the MSB is read, the LSB associated with that temperature will be locked in and override the previous LSB value locked-
in
2.1.1 Local Value Registers
Bit(s)
7
6
5
4
3
2
1
0
Bit(s)
7
6
5
4-0
Bit Name
SIGN
64
32
16
8
4
2
1
Bit Name
1/2
1/4
1/8
0
Read/
Write
RO
RO
RO
RO
RO
RO
RO
RO
Read/
Write
RO
RO
RO
RO
Command
Command
(Hex)
0x0C
0x0D
0x0E
0x4A
0x5A
0xFE
0xFF
Byte
0x40
0x41
0x42
0x43
0x44
0x49
(Hex)
Byte
0x10
0x20
Description
Sign bit
bit weight 64°C
bit weight 32°C
bit weight 16°C
bit weight 8°C
bit weight 4°C
bit weight 2°C
bit weight 1°C
Description
bit weight 1/2°C (0.5°C)
bit weight 1/4°C (0.25°C)
bit weight 1/8°C (0.125°C)
Reserved – will report "0" when read.
Read/
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
Read/
Write
RO
RO
128
128
128
128
128
128
D7
SIGN
0
0
0
0
–
–
–
1/2
D7
19
D6
64
64
64
64
64
64
64
–
–
–
0
0
1
1/4
D6
64
D5
32
32
32
32
32
32
32
0
0
1
–
–
–
1/8
D5
32
R4TM R3TM R2T1M R1T1M
R4TM R3TM R2T2M R1T2M
R4TM R3TM R2T2M R1T2M
D4
16
16
16
16
16
16
16
16
0
1
D4
16
0
The Local temperature MSB value
register range is +127°C to −128°C. The
value programmed in this register is used
to determine a local temperature error
event.
The Local Limit register range is 0°C to
127°C. The value programmed in this
register is used to determine a local
temperature error event.
D3
8
8
8
8
8
8
8
8
0
1
D3
8
0
D2
4
4
4
4
4
4
4
4
0
0
D2
4
0
D1
D1
2
2
2
2
2
2
2
2
0
1
2
0
LTM
LTM
LTM
D0
D0
1
1
1
1
1
1
1
1
1
1
1
0
www.national.com
Default
Default
(Hex)
(Hex)
POR
0x19
0x00
0x07
0x55
0x6E
0x6E
0x55
0x55
0x55
0x55
0x0A
0x01
0x7B
POR
–
–