DS1864T+ Maxim Integrated Products, DS1864T+ Datasheet - Page 30

• Manufacturer Part Number: DS1864T+
• Description: IC LASER CTRLR 1CHAN 5.5V 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controller (Fiber Optic)r

Specifications of DS1864T+

• Number Of Channels: 1
• Voltage - Supply: 2.97 V ~ 5.5 V
• Current - Supply: 3mA
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 28-WFQFN Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SFP Laser Controller and
Diagnostic IC
30
Lower Memory Register 16h to 17h: Low MON1 Warning Limit
FACTORY DEFAULT:
MEMORY TYPE:
V ol tag e m easur em ents of the M ON 1 i np ut b el ow thi s thr eshol d w i l l set i ts cor r esp ond i ng w ar ni ng b i t ( Low er M em or y Reg i ster 74h, b i t 2) .
M easur em ents ab ove thi s thr eshol d w i l l automatically cl ear i ts w ar ni ng b i t.
Lower Memory Register 18h to 19h: High MON2 Alarm Limit
FACTORY DEFAULT:
MEMORY TYPE:
V ol tag e m easur em ents of the M ON 2 i np ut ab ove thi s thr eshol d w i l l set i ts cor r esp ond i ng al ar m b i t ( Low er M em or y Reg i ster 70h, b i t 1) .
M easur em ents b el ow thi s thr eshol d w i l l automatically cl ear i ts al ar m b i t.
Lower Memory Register 1Ah to 1Bh: Low MON2 Alarm Limit
FACTORY DEFAULT:
MEMORY TYPE:
V ol tag e m easur em ents of the M ON 2 i np ut b el ow thi s thr eshol d w i l l set i ts cor r esp ond i ng al ar m b i t ( Low er M em or y Reg i ster 70h, b i t 0) .
M easur em ents ab ove thi s thr eshol d w i l l automatically cl ear i ts al ar m b i t.
Lower Memory Register 1Ch to 1Dh: High MON2 Warning Limit
FACTORY DEFAULT:
MEMORY TYPE:
V ol tag e m easur em ents of the M ON 2 i np ut ab ove thi s thr eshol d w i l l set i ts cor r esp ond i ng w ar ni ng b i t ( Low er M em or y Reg i ster 74h, b i t 1) .
M easur em ents b el ow thi s thr eshol d w i l l automatically cl ear i ts w ar ni ng b i t.
____________________________________________________________________
1Ch
1Dh
1Ah
1Bh
16h
17h
18h
19h
bit7
bit7
bit7
bit7
2
2
2
2
2
2
2
2
15
15
15
15
7
7
7
7
0000h
0000h
0000h
2
2
0000h
2
2
Shadowed Memory (SEE)
Shadowed Memory (SEE)
Shadowed Memory (SEE)
Shadowed Memory (SEE)
2
2
2
2
14
14
14
14
6
6
6
6
2
2
2
2
2
2
2
2
13
13
13
13
5
5
5
5
2
2
2
2
2
2
2
2
12
12
12
12
4
4
4
4
2
2
2
2
2
2
2
2
11
11
11
11
3
3
3
3
2
2
2
2
2
2
2
2
10
10
10
10
2
2
2
2
2
2
2
2
2
2
2
2
9
1
9
1
9
1
9
1
bit0
bit0
bit0
bit0
2
2
2
2
2
2
2
2
8
0
8
0
8
0
8
0