Datasheet

Temperature Reg Read
(16 bits)
Command Byte
Write (8 bits)
Data Register
Read or Write (16 bits)
CS
SI/O
D16 D0 D0D16P7 P0
Command Byte
Write (8 bits)
Data Register
Read or Write (16 bits)
D0D16P0P7
SC
1 8 1 16
1 8
1
16 161
Temperature Reg Read
(16 bits)
Command Byte
Write (8 bits)
Data Register
Read or Write (16 bits)
CS
SI/O
D16 D0 D0D16P7 P0
SC
1 16 1 161 8
LM95172
www.ti.com SNOSB33B –DECEMBER 2009–REVISED MARCH 2013
Figure 12. Reading the Temperature Register followed by a read or write from another register
(Control/Status, T
HIGH
, T
LOW
, or Identification register)
Figure 13. Reading the Temperature Register followed by repeated commands and Data Register
accesses (Control/Status, T
HIGH
, T
LOW
, or Identification register)
TEMPERATURE DATA FORMAT
Temperature data is represented by a 13- to 16-bit, two's complement word with a Least Significant Bit (LSB)
equal to 0.0625 °C (13-bits), 0.03125 °C (14-bits), 0.015625 °C (15-bits) or 0.0078125 °C (16-bits). See
Temperature Register for definition of the bits in the Temperature Register.
Table 1. 13-Bit Resolution. First Bit (D15) is Sign, the last bit (D0) is Toggle and bits D1 and D2 are
always 0.
13-bit Resolution Digital Output
Temperature All 16 Bits Bits D15 - D3
16-bit Binary
Hex Hex
0101011110000 000 5780
+175°C 0AF0
0101011110000 001 5781
0100101100000 000 4B00
+150°C 0960
0100101100000 001 4B01
0010100000000 000 2800
+80°C 0500
0010100000000 001 2801
0000110010000 000 0C80
+25°C 0190
0000110010000 001 0C81
0000000000001 000 0008
+0.0625°C 0001
0000000000001 001 0009
0000000000000 000 0000
0°C 0000
0000000000000 001 0001
1111111111111 000 FFF8
−0.0625°C 1FFF
1111111111111 001 FFF9
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