参数资料
型号: DS1874T+
厂商: Maxim Integrated
文件页数: 30/88页
文件大小: 0K
描述: IC CTLR SFP+ ANLG LDD 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
类型: 激光二极管控制器
通道数: 1
电源电压: 2.85 V ~ 3.9 V
电流 - 电源: 2.5mA
工作温度: -40°C ~ 95°C
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 管件
安装类型: 表面贴装
其它名称: 90-1874T+000

SFP+ Controller with Digital LDD Interface
Register Descriptions
The register maps show each byte/word (2 bytes) in terms of its row in the memory. The first byte in the row is locat-
ed in memory at the row address (hexadecimal) in the leftmost column. Each subsequent byte on the row is one/two
memory locations beyond the previous byte/word’s address. A total of 8 bytes are present on each row. For more
information about each of these bytes see the corresponding register description.
Lower Memory Register Map
LOWER MEMORY
ROW
(hex)
00
08
10
18
20
28
ROW NAME
<1> THRESHOLD 0
<1> THRESHOLD 1
<1> THRESHOLD 2
<1> THRESHOLD 3
<1> THRESHOLD 4
<1> THRESHOLD 5
WORD 0
BYTE 0/8 BYTE 1/9
TEMP ALARM HI
V CC ALARM HI
MON1 ALARM HI
MON2 ALARM HI
MON3 ALARM HI
MON4 ALARM HI
WORD 1
BYTE 2/A BYTE 3/B
TEMP ALARM LO
V CC ALARM LO
MON1 ALARM LO
MON2 ALARM LO
MON3 ALARM LO
MON4 ALARM LO
WORD 2
BYTE 4/C BYTE 5/D
TEMP WARN HI
V CC WARN HI
MON1 WARN HI
MON2 WARN HI
MON3 WARN HI
MON4 WARN HI
WORD 3
BYTE 6/E BYTE 7/F
TEMP WARN LO
V CC WARN LO
MON1 WARN LO
MON2 WARN LO
MON3 WARN LO
MON4 WARN LO
30–5F
<1> EEPROM
EE
EE
EE
EE
EE
EE
EE
EE
60
68
<2> ADC
VALUES 0
<0> ADC
VALUES 1
TEMP VALUE
<2> MON3 VALUE
V CC VALUE
<2> MON4 VALUE
MON1 VALUE
<2> RESERVED
MON2 VALUE
<0> STATUS <3> UPDATE
70
<2> ALARM/
WARN
ALARM 3
ALARM 2
ALARM 1
ALARM 0
WARN 3
WARN 2
RESERVED
78
<0> TABLE
SELECT
<2> RESERVED
<2>
RESERVED
<6> PWE MSW
<6> PWE LSW
<5> TBL
SEL
ACCESS
CODE
Read
Access
Write
Access
<0>
See each
bit/byte
separately
<1>
All
PW2
<2>
All
N/A
<3>
All
All and
DS1874
hardware
<4>
PW2
PW2 +
mode
bit
<5>
All
All
<6>
N/A
All
<7>
PW1
PW1
<8>
PW2
PW2
<9>
N/A
PW2
<10>
PW2
N/A
<11>
All
PW1
30
______________________________________________________________________________________
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