DS1864T+ Maxim Integrated Products, DS1864T+ Datasheet - Page 43
![IC LASER CTRLR 1CHAN 5.5V 28TQFN](/photos/6/61/66150/28-tqfn_21-0139h_sml.jpg)
DS1864T+
Manufacturer Part Number
DS1864T+
Description
IC LASER CTRLR 1CHAN 5.5V 28TQFN
Manufacturer
Maxim Integrated Products
Type
Laser Diode Controller (Fiber Optic)r
Datasheet
1.DS1864TTR.pdf
(72 pages)
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
Table 01h (Table 00h in DS1859 Configuration), F9h: Alarm Masks
FACTORY DEFAULT:
MEMORY TYPE:
These bytes configure a maskable interrupt, determining which alarm flags assert the MINT bit (Lower Memory, byte 71h, bit 0). If
one of the interrupts is desired, its bit must be written to a 1 here. If no interrupt is desired, the bit should be written to a 0.
These bit locations do not match the register locations as called out in the SFF-8472, therefore another four byte set is also stored in
another location (Table 05h, registers F8h to FBh). The MASK configuration bit (Table 04h (Table 01h in DS1859 configuration),
register DAh, bit 0) determines which mask sets is used to generate the MINT interrupt.
F9h
MON3hi
bit5:0
bit7
bit6
bit7
MONalm3himask: Determines if an interrupt is generated for a High MON3 Alarm Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
MON3almlomask: Determines if an interrupt is generated for a Low MON3 Alarm Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
Reserved.
MON3lo
00h
Shadowed Memory (SEE)
____________________________________________________________________
SFP Laser Controller and
RESERVED
Diagnostic IC
bit0
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