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DS1864 Datasheet(PDF) 28 Page - Dallas Semiconductor

Part # DS1864
Description  SFP Laser Controller and Diagnostic IC
PDF  72 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1864 Datasheet(HTML) 28 Page - Dallas Semiconductor

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SFP Laser Controller and
Diagnostic IC
28
____________________________________________________________________
Lower Memory Register 06h to 07h: Low Temperature Warning Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
06h
S2
6
2
5
2
4
2
3
2
2
2
1
2
0
07h
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
2
-8
bit7
bit0
Temperature measurements below this threshold will set its corresponding warning bit (Lower Memory Register 74h, bit 6).
Measurements above this threshold will automatically clear its warning bit.
Lower Memory Register 08h to 09h: High VCC Alarm Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
08h
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
09h
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
bit7
bit0
Voltage measurements of the VCC input above this threshold will set its corresponding alarm bit (Lower Memory Register 70h, bit 5).
Measurements below this threshold will automatically clear its alarm bit.
Lower Memory Register 0Ah to 0Bh: Low VCC Alarm Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
0Ah
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
0Bh
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
bit7
bit0
Voltage measurements of the VCC input below this threshold will set its corresponding alarm bit (Lower Memory Register 70h, bit 4).
Measurements above this threshold will automatically clear its alarm bit.
Lower Memory Register 0Ch to 0Dh: High VCC Warning Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
0Ch
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
0Dh
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
bit7
bit0
Voltage measurements of the VCC input above this threshold will set its corresponding warning bit (Lower Memory Register 74h, bit
5). Measurements below this threshold will automatically clear its warning bit.



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