Datasheet

64 Maxim Integrated
SFP Controller for Dual Rx Interface
DS1877
Auxiliary Memory A0h, Register 80h–FFh: EEPROM
Applications Information
Power-Supply Decoupling
To achieve best results, it is recommended that the power
supply is decoupled with a 0.01FF or a 0.1FF capacitor.
Use high-quality, ceramic, surface-mount capacitors,
and mount the capacitors as close as possible to the
V
CC
and GND pins to minimize lead inductance.
SDA and SCL Pullup Resistors
SDA is an open-collector output on the device that
requires a pullup resistor to realize high logic levels. A
master using either an open-collector output with a pul-
lup resistor or a push-pull output driver can be used for
SCL. Pullup resistor values should be chosen to ensure
that the rise and fall times listed in the I
2
C AC Electrical
Characteristics table are within specification.
Package Information
For the latest package outline information and land patterns, go
to www.maximintegrated.com/packages. Note that a “+”, “#”,
or “-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
FACTORY DEFAULT 00h
READ ACCESS All
WRITE ACCESS PW2 or (PW1 and WAUXB) or WAUXBU
MEMORY TYPE Nonvolatile (EE)
80h–FFh 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT 7 BIT 0
Accessible with the slave address A0h.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
28 TQFN-EP T2855+6
21-0140