ATS75D8 ETC2 [List of Unclassifed Manufacturers], ATS75D8 Datasheet - Page 8

• Manufacturer Part Number: ATS75D8
• Description: LOW- OLTAGE 2-WIRE DIGITAL TEMPERATURE SENSOR With Thermal Alarm
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Over-Limit-Signal Temperature Register (T
The T
that
temperature for the thermal alarm in two’s-complement
format. At power-up this register defaults to 80°C (i.e.,
0101 0000 0000 0000.
The format of the T
Temperature Register (see Figure 6). The 4 LSBs of the
T
register bits will be ignored. The MSB position of the T
Register contains the sign bit for the digital temperature
and bit 14 contains the temperature MSB.
The resolution setting for the T-to-D conversion determines
how many bits of the T
alarm.
temperature is defined by the 9 MSBs of the T
and all remaining bits are “don’t cares”.
Hysteresis Temperature Register (T
The T
that stores the user programmable lower trip-point
temperature for the thermal alarm in two's complement
format. At power-up this register defaults to 75°C (i.e.,
0100 1011 0000 0000).
The T
this register is the same as
Register. The 4 LSBs of the T
to zero, so data written to these bits is ignored.
The resolution setting for the T-to-D conversion determines
how many bits of the T
thermal alarm.
hysteresis temperature is defined by the 9 MSBs of the
T
© Andigilog, Inc. 2005
OS
HYST
Figure 6. T
SB = Two’s complement sign bit
TMSB = Hysteresis temperature MSB
T = Temperature data
9-bit LSB = Hysteresis temperature LSB for 9-bit conversions
10-bit LSB = Hysteresis temperature LSB for 10-bit conversions
11-bit LSB = Hysteresis temperature LSB for 11-bit conversions
12-bit LSB = Hysteresis temperature LSB for 12-bit conversions
Register are hardwired to zero, so data written to these
MSB
SB
HYST
HYST
Register, and all remaining bits are “don’t cares”.
stores
OS
For example, for 9-bit conversions the trip-point
Register is a two-byte (16-bit) read/write register
9-bit
LSB
TMSB
Register is a two-byte (16-bit) read/write register
Register is illustrated in Figure 6. The format of
7
14
the
HYST
10-bit
LSB
6
For example, for 9-bit conversions the
13
T
Register and T
user-programmable
OS
11-bit
LSB
OS
Register is identical to that of the
5
12
T
Register are used by the thermal
HYST
12-bit
LSB
4
11
HYST
T
Register are used by the
that of the Temperature
OS
Register are hardwired
0
3
10
T
HYST
Register Format
)
0
upper
2
T
9
OS
OS
)
0
1
Register,
trip-point
T
8
www.andigilog.com
LSB
0
OS
- 8 -
April 2006 - 70A03204
aTS75