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G751 Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers

Part No. G751
Description  Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
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Maker  ETC [List of Unclassifed Manufacturers]
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G751 Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers

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Ver: 2.2
Nov 07 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
7
G751
Global Mixed-mode Technology Inc.
Pointer Register
(Selects which registers will be read from or written to):
P7
P6
P5
P4
P3
P2
P1
P0
0
0
0
0
0
0
Register Select
P0-P1 :Register Select:
P1
P0
REGISTER
0
0
Temperature (Read only) (Power-up default)
0
1
Configuration (Read/Write)
1
0
THYST (Read/Write)
1
1
TOS (Read/Write)
P2-P7 :Must be kept zero.
Temperature Register
(Read Only):
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
MSB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
LSB
X
X
X
X
X
X
X
D0-D6 :Undefined
D7-D15 :Temperature Data. One LSB = 0.5°C. Two’s complement format.
Configuration Register
(Read/Write):
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
Fault Queue
O.S. Polarity
Cmp/Int
Shutdown
Power up default is with all bits “0” (zero).
D0 :Shutdown : When set to 1 the G751 goes to low power shutdown mode.
D1 :Comparator / Interrupt mode : 0 is Comparator mode, 1 is Interrupt mode.
D2 :O.S. Polarity : 0 is active low, 1 is active high. O.S. is an open-drain output under all conditions.
D3-D4 :Fault Queue : Number of faults necessary to detect before setting O.S. output to avoid false tripping due
to noise :
D4
D3
NUMBER OF FAULTS
0
0
1 (Power-up default)
0
1
2
1
0
4
1
1
6
D5-D7 :These bits are used for production testing and must be kept zero for normal operation.
THYST and TOS Register
(Read/Write):
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
MSB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
LSB
X
X
X
X
X
X
X
D0-D6 :Undefined
D7-D15 :THYST Or TOS Trip Temperature Data. Power up default is TOS = 50°C /80°C for G751-1/G751-2, THYST =
45°C /75°C for G751-1/G751-2.


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