1°C Temperature Sensor with Beta Compensation
Datasheet
‘0’ (default)- REC is enabled for the External Diode.
‘1’ - REC is disabled for the External Diode 1.
Bit 2 - RANGE - Configures the measurement range and data format of the temperature channels.
‘0’ (default) - The temperature measurement range is 0°C to +127.875°C and the data format is
binary.
‘1’ -The temperature measurement range is -64°C to +191.875°C and the data format is offset
binary (see Table 5.2).
Bit 1 - DAVG_DIS - Disables the dynamic averaging feature on all temperature channels.
‘0’ (default) - The dynamic averaging feature is enabled. All temperature channels will be converted
with an averaging factor that is based on the conversion rate as shown in Table 5.1.
‘1’ - The dynamic averaging feature is disabled. All temperature channels will be converted with a
maximum averaging factor of 1x (equivalent to 11-bit conversion). For higher conversion rates, this
averaging factor will be reduced as shown in Table 5.1.
6.5
Conversion Rate Register
Table 6.5 Conversion Rate Register
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
04h
0Ah
Conversion
Rate
06h
(4/sec)
R/W
-
-
-
-
CONV[3:0]
The Conversion Rate Register controls how often the temperature measurement channels are updated
and compared against the limits. This register is fully accessible at either address.
Bits 3-0 - CONV[3:0] - Determines the conversion rate as shown in Table 6.6.
Table 6.6 Conversion Rate
CONV[3:0]
HEX
3
2
1
0
CONVERSIONS / SECOND
0h
1h
2h
3h
4h
5h
6h
7h
8h
9h
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
1 / 16
1 / 8
1 / 4
1 / 2
1
2
4 (default)
8
16
32
Revision 1.16 (03-15-07)
SMSC EMC1402
DATA2S8HEET
SMSC [ SMSC CORPORATION ]
