lm95221cimm-eng National Semiconductor Corporation, lm95221cimm-eng Datasheet - Page 13

• Manufacturer Part Number: lm95221cimm-eng
• Description: Dual Remote Diode Digital Temperature Sensor With Smbus Interface
• Manufacturer: National Semiconductor Corporation

2.0 LM95221 Registers
2.3 LOCAL and REMOTE MSB and LSB TEMPERATURE REGISTERS
Temperature Data: LSb = 1˚C.
Temperature Data: LSb = 0.25˚C.
Temperature Data: LSb = 1˚C.
Temperature Data: LSb = 1˚C.
Temperature Data: LSb = 0.125˚C.
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.
2.4 MANUFACTURERS ID REGISTER
(Read Address FEh) The default value is 01h.
2.5 DIE REVISION CODE REGISTER
(Read Address FFh) Value to be determined. This register will increment by 1 every time there is a revision to the die by National
Semiconductor.
(Read Only Address 10h) 9-bit plus sign format:
(Read Only Address 20h) 9-bit plus sign format:
(Read Only Address 11h, 12h) 10 bit plus sign format:
(Read Only Address 11h, 12h) 11-bit unsigned format:
(Read Only Address 21, 22h) 10-bit plus sign or 11-bit unsigned binary
formats:
Value
Value
Value
Value
Value
BIT
BIT
BIT
BIT
BIT
SIGN
SIGN
128
0.5
0.5
D7
D7
D7
D7
D7
(Continued)
0.25
0.25
D6
D6
D6
D6
D6
64
64
64
Remote Temperature MSB
Remote Temperature LSB
Local Temperature MSB
Local Temperature LSB
0.125
D5
D5
D5
D5
D5
32
32
32
0
13
D4
D4
D4
D4
D4
16
16
16
0
0
D3
D3
D3
D3
D3
8
0
8
8
0
D2
D2
D2
D2
D2
4
0
4
4
0
D1
D1
D1
D1
D1
2
0
2
2
0
D0
D0
D0
D0
D0
1
0
1
1
0
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