DS1877 datasheet(64/65 Pages) MAXIM

64 / 65 page

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

VCC 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 I2C 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

BIT 7

BIT 0

Accessible with the slave address A0h.

PACKAGE TYPE

PACKAGE CODE

DOCUMENT NO.

28 TQFN-EP

T2855+6

21-0140

DS1877 Datasheet(PDF) 64 Page - Maxim Integrated Products

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