TMP435
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SBOS495A –MARCH 2010–REVISED APRIL 2010
Table 1. Temperature Data Format (Local and Remote Temperature High Bytes)
LOCAL/REMOTE TEMPERATURE REGISTER
HIGH BYTE VALUE (+1°C RESOLUTION)
STANDARD BINARY(1)
EXTENDED BINARY(2)
TEMP (°C)
BINARY
HEX
00
00
00
00
01
05
0A
19
32
4B
64
7D
7F
7F
7F
7F
BINARY
HEX
00
−64
−50
−25
0
0000 0000
0000 0000
0000 0000
0000 0000
0000 0001
0000 0101
0000 1010
0001 1001
0011 0010
0100 1011
0110 0100
0111 1101
0111 1111
0111 1111
0111 1111
0111 1111
0000 0000
0000 1110
0010 0111
0100 0000
0100 0001
0100 0101
0100 1010
0101 1001
0111 0010
1000 1011
1010 0100
1011 1101
1011 1111
1101 0110
1110 1111
1111 1111
0E
27
40
1
41
5
45
10
4A
59
25
50
72
75
8B
A4
BD
BF
D6
EF
FF
100
125
127
150
175
191
(1) Resolution is 1°C/count. Negative numbers are represented in twos complement format.
(2) Resolution is 1°C/count. All values are unsigned with a –64°C offset.
REGISTER INFORMATION
Table 2. Decimal Fraction Temperature Data
Format (Local and Remote Temperature Low
Bytes)
The TMP435 contain multiple registers for holding
configuration information, temperature measurement
results, temperature comparator maximum/minimum,
limits, and status information. These registers are
described in Figure 14 and in Table 3.
TEMPERATURE REGISTER LOW BYTE VALUE
(0.0625°C RESOLUTION)(1)
TEMP (°C)
0
STANDARD AND EXTENDED BINARY
0000 0000
HEX
00
10
20
30
40
50
60
70
80
90
A0
B0
C0
D0
E0
F0
Pointer Register
0.0625
0.1250
0.1875
0.2500
0.3125
0.3750
0.4375
0.5000
0.5625
0.6250
0.6875
0.7500
0.8125
0.8750
0.9375
0001 0000
Local and Remote Temperature Registers
Local and Remote Limit Registers
0010 0000
0011 0000
0100 0000
THERM Hysteresis Register
Status Register
SDA
0101 0000
0110 0000
0111 0000
I/O
Control
Interface
Configuration Register
Beta Correction Register
Conversion Rate Register
Consecutive Alert Register
Identification Registers
1000 0000
1001 0000
SCL
1010 0000
1011 0000
1100 0000
1101 0000
1110 0000
Figure 14. Internal Register Structure
1111 0000
(1) Resolution is 0.0625°C/count. All possible values are shown.
Copyright © 2010, Texas Instruments Incorporated
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