DS1876T+T&R Maxim Integrated Products, DS1876T+T&R Datasheet - Page 25

• Manufacturer Part Number: DS1876T+T&R
• Description: IC CTRLR SFP DUAL LDD 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: SFP Laser Controllerr

Specifications of DS1876T+T&R

• Input Type: Logic
• Output Type: Logic
• Interface: I²C
• Current - Supply: 10mA
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

<C> or <_/C> = Common, <D> or <_/D> = Different, <M> or <_/M> = Mixture of common and different.
<C> or <_/C> = Common, <D> or <_/D> = Different, <M> or <_/M> = Mixture of common and different.
Note: The ALARM ENABLE bytes (Registers F8h–FFh) can be configured to exist in Table 05h instead of here at Table 01h with
the MASK bit (Table 02h, Register 88h). If the row is configured to exist in Table 05h, these location are empty in Table 01h.
The access codes represent the factory default values of PW_ENA and PW_ENB (Table 02h, Registers C0h–C1h).
These registers also allow for custom permissions.
ACCESS
Read
Access
Write
Access
(HEX)
20–40
48–50
(HEX)
80–F7
ROW
ROW
00
08
10
18
58
60
68
70
78
F8
CODE
<7/M>
<0/M>
<1/C >
<2/M>
<0/M>
<1/C>
<1/D>
<1/D>
<5/D>
<1/C >
<1/D >
<1/C >
<1/C>
ROW NAME
ROW NAME
ALARM ENABLE
TABLE SELECT
ADC VALUES 0
ADC VALUES 1
THRESHOLD 0
THRESHOLD 2
THRESHOLD 3
ALARM/WARN
separately
THRESHOLD 1
See each
bit/byte
EEPROM
EEPROM
EEPROM
EEPROM
<0/_>
______________________________________________________________________________________
SFP Controller with Dual LDD Interface
<M>
<1/_>
PW2
RESERVED
All
BYTE 0/8
BYTE 0/8
ALARM 3
ALARM EN 3
EE
EE
BMON ALARM HI
PMON ALARM HI
<C>
TEMP ALARM HI
V CC ALARM HI
RESERVED
TEMP VALUE
WORD 0
WORD 0
<2/_>
N/A
EE
EE
All
RESERVED
RESERVED
BYTE 1/9
BYTE 1/9
ALARM 2
EE
EE
Hardware
DS1876
All and
<3/_>
All
<D>
RESERVED
BYTE 2/A
BYTE 2/A
ALARM 1
ALARM EN 1
PW2 +
<4/_>
mode
EE
EE
PW2
BMON ALARM LO
PMON ALARM LO
bit
TEMP ALARM LO
<C>
V CC ALARM LO
LOWER MEMORY
RESERVED
WORD 1
WORD 1
V CC VALUE
TABLE 01h
EE
EE
<5/_>
RESERVED
RESERVED
All
All
BYTE 3/B
BYTE 3/B
EE
EE
<6/C>
<6/_>
PWE MSW
N/A
All
<M>
BYTE 4/C
BYTE 4/C
WARN 3
WARN EN 3
EE
EE
<D>
<7/_>
BMON WARN HI
PMON WARN HI
PW1
PW1
TEMP WARN HI
V CC WARN HI
RESERVED
BMON VALUE
WORD 2
WORD 2
Lower Memory Register Map
EE
EE
RESERVED
RESERVED
BYTE 5/D
BYTE 5/D
<8/_>
PW2
PW2
EE
EE
Table 01h Register Map
<6/C>
PWE LSW
<9/_>
PW2
N/A
<0/M>
RESERVED
RESERVED
BYTE 6/E
BYTE 6/E
EE
STATUS
EE
<D>
BMON WARN LO
PMON WARN LO
TEMP WARN LO
V CC WARN LO
<10/_>
PMON VALUE
PW2
WORD 3
WORD 3
N/A
EE
EE
<3/D>
<5/D>
RESERVED
RESERVED
BYTE 7/F
BYTE 7/F
<11/_>
EE
UPDATE
TBL SEL
EE
PW1
All
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