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6004B View Datasheet(PDF) - NXP Semiconductors.

Part Name
Description
Manufacturer
6004B Datasheet PDF : 36 Pages
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NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
Table 5. Temperature data format
Temperature
Digital output
Binary
+125 °C
0111 1101 0000 0000
+25 °C
0001 1001 0000 0000
+1 °C
0000 0001 0000 0000
+0.125 °C
0000 0000 0010 0000
0 °C
0000 0000 0000 0000
0.125 °C
1111 1111 1110 0000
1 °C
1111 1111 0000 0000
25 °C
1110 0111 0000 0000
55 °C
1100 1001 0000 0000
Hex
7D00h
1900h
0100h
0020h
0000h
FFE0h
FF00h
E700h
C900h
7.8 SA56004X SMBus registers
7.8.1 Command register
The command register selects which register will be read or written to. Data for this
register should be transmitted during the Command Byte of the SMBus write
communication.
7.8.2 Local and remote temperature registers (LTHB, LTLB, RTHB, RTLB)
Table 6. LTHB, LTLB, RTHB, RTLB - Local and remote temperature registers
Byte High byte (read only; address 00h, 01h)
Low byte (read only; address 10h)
Bit
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
Value sign 64 32 16 8
4
2
1 0.5 0.25 0.125 0
0
0
0
0
7.8.3 Configuration register (CON)
The configuration register is an 8-bit register with read address 03h and write address
09h. Table 7 shows how the bits in this register are used.
Table 7. CON - Configuration register (read address 03h; write address 09h)
bit assignments
Bit
Description
POR state
7
ALERT mask.
0
The ALERT interrupt is enabled when this bit is LOW. The ALERT interrupt
is disabled (masked) when this bit is HIGH.
6
RUN/STOP.
0
Standby or run mode control. Running mode is enabled when this bit is
LOW. The SA56004X is in standby mode when this bit is HIGH.
5
Not defined; defaults to logic 0.
0
4
Remote T_CRIT mask.
0
The T_CRIT output will be activated by a remote temperature that exceeds
the remote T_CRIT setpoint when this bit is LOW. The T_CRIT output will
not be activated under this condition when this bit is HIGH.
3
Not defined; defaults to logic 0.
0
SA56004X_5
Product data sheet
Rev. 05 — 22 May 2008
© NXP B.V. 2008. All rights reserved.
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