SA56004AD NXP Semiconductors, SA56004AD Datasheet - Page 9

• Manufacturer Part Number: SA56004AD
• Description: Board Mount Temperature Sensors I2C LOC +/- 2OC AND REM +/- 1OC TS
• Manufacturer: NXP Semiconductors

Specifications of SA56004AD

• Full Temp Accuracy: +/- 1 C, +/- 3 C
• Package / Case: SOT-96
• Digital Output - Bus Interface: I2C
• Digital Output - Number Of Bits: 11 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SA56004AD,112

NXP Semiconductors
SA56004X_5
Product data sheet
7.8.4 Status register (SR)
Table 7.
The contents of the status register reflect condition status resulting from all activities:
comparison between temperature measurements and temperature limits, the status of
A/D conversion, and the hardware condition of external diode to the device. Bit
assignments are listed in
POR, all bits are set to zero.
Remark: Any one of the fault conditions, with the exceptions of Diode OPEN and
A/D BUSY, introduces an Alert interrupt (see
command is executed, the status byte should be read after the conversion is completed,
which is about 38 ms (1 conversion time period) after the one-shot command is sent.
Table 8.
Bit
2
1
0
Bit
7
6
5
4
3
2
1
0
Name
BUSY
LHIGH
LLOW
RHIGH When logic 1, indicates a remote diode HIGH temperature alarm. POR state = 0.
RLOW
OPEN
RCRIT
LCRIT
Description
Local T_CRIT mask.
The T_CRIT output will be activated by a local temperature that exceeds
the local T_CRIT setpoint when this bit is LOW. The T_CRIT output will not
be activated under this condition when this bit is HIGH.
Not defined; defaults to logic 0.
Fault queue.
A single remote temperature measurement outside the HIGH, LOW or
T_CRIT setpoints will trigger an outside limit condition resulting in setting
the status bits and associated output pins when this bit is LOW. Three
consecutive measurements outside of one of these setpoints are required
to trigger an outside of limit condition when this bit is HIGH.
CON - Configuration register (read address 03h; write address 09h)
bit assignments
SR - Status register (read-only address 02h) bit assignments
Description
When logic 1, A/D is busy converting. POR state = n/a.
When logic 1, indicates local HIGH temperature alarm. POR state = 0.
When logic 1, indicates a local LOW temperature alarm. POR state = 0.
When logic 1, indicates a remote diode LOW temperature alarm. POR state = 0.
When logic 1, indicates a remote diode disconnect. POR state = 0.
When logic 1, indicates a remote diode critical temperature alarm. POR state = 0.
When logic 1, indicates a local critical temperature alarm. POR state = 0.
Rev. 05 — 22 May 2008
Table
…continued
Digital temperature sensor with overtemperature alarms
8. This register is read-only and its address is 02h. Upon
Section
7.9.1.2). Also, whenever a one-shot
SA56004X
© NXP B.V. 2008. All rights reserved.
POR state
0
0
0
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