DS1873T+ Maxim Integrated Products, DS1873T+ Datasheet - Page 44

• Manufacturer Part Number: DS1873T+
• Description: IC CTLR SFP+ ANLG LDD 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controllerr

Specifications of DS1873T+

• Number Of Channels: 1
• Voltage - Supply: 2.85 V ~ 3.9 V
• Current - Supply: 2.5mA
• 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
• Other names: 90-1873T+000

Lower Memory, Register 74h: WARN
SFP+ Controller with Analog LDD Interface
44
74h
______________________________________________________________________________________
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
MEMORY TYPE
TEMP HI
BIT 7
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TEMP HI: High-warning status for temperature measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
TEMP LO: Low-warning status for temperature measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
VCC HI: High-warning status for V
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
VCC LO: Low-warning status for V
trip point value. It clears itself when a V
threshold.
0 = Last measurement was equal to or above threshold setting.
1 = (Default) Last measurement was below threshold setting.
MON1 HI: High-warning status for MON1 measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
MON1 LO: Low-warning status for MON1 measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
MON2 HI: High-warning status for MON2 measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
MON2 LO: Low-warning status for MON2 measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
TEMP LO
10h
All
N/A
Volatile
VCC HI
3
VCC LO
CC
CC
measurement.
measurement. This bit is set when the V
CC
measurement is completed and the value is above the low
MON1 HI
MON1 LO
CC
MON2 HI
supply is below the POA
MON2 LO
BIT 0