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DS1874T

SFP+ Controller with Digital LDD Interface

Maxim Integrated 

SFP+ Controller with Digital LDD Interface

ABSOLUTE MAXIMUM RATINGS

Voltage Range on MON1–MON4, RSEL,

IN1, LOS, TXF, and TXD Pins

Relative to Ground .................................-0.5V to (VCC + 0.5V)*

Voltage Range on VCC, SDA, SCL, OUT1,

RSELOUT, and LOSOUT Pins

Relative to Ground.................................................-0.5V to +6V

Operating Temperature Range ...........................-40°C to +95°C

Programming Temperature Range .........................0°C to +95°C

Storage Temperature Range .............................-55°C to +125°C

Soldering Temperature...........................Refer to the IPC/JEDEC

J-STD-020 Specification.

*Subject to not exceeding +6V.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

(TA = -40°C to +95°C, unless otherwise noted.)

PARAMETER

Main Supply Voltage

High-Level Input Voltage

(SDA, SCL, SDAOUT)

SYMBOL

VCC

(Note 1)

VIH:1

CONDITIONS

Low-Level Input Voltage

(SDA, SCL, SDAOUT)

VIL:1

High-Level Input Voltage

(TXD, TXF, RSEL, IN1, LOS)

VIH:2

Low-Level Input Voltage

(TXD, TXF, RSEL, IN1, LOS)

VIL:2

MIN

+2.85

0.7 x

VCC

-0.3

2.0

TYP

MAX

+3.9

VCC +

0.3

0.3 x

VCC

VCC +

0.3

UNITS

V

V

V

V

-0.3

+0.8

V

DC ELECTRICAL CHARACTERISTICS

(VCC = +2.85V to +3.9V, TA = -40°C to +95°C, unless otherwise noted.)

PARAMETER

Supply Current

Output Leakage

(SDA, SDAOUT, OUT1,

RSELOUT, LOSOUT, TXF)

Low-Level Output Voltage (SDA,

SDAOUT, SCLOUT, CSELOUT,

OUT1, RSELOUT, LOSOUT,

TXDOUT, DAC1, DAC2, TXF)

High-Level Output Voltage

(DAC1, DAC2, SCLOUT,

SDAOUT, CSELOUT, TXDOUT)

TXDOUT Before EEPROM Recall

SYMBOL

ICC

(Notes 1, 2)

ILO

IOL = 4mA

VOL

IOL = 6mA

VOH

IOH = 4mA

CONDITIONS

DAC1 and DAC2 Before LUT

Recall

Figure 11

Input Leakage Current

(SCL, TXD, LOS, RSEL, IN1)

ILI

Digital Power-On Reset

Analog Power-On Reset

POD

POA

MIN TYP MAX UNITS

2.5

10

mA

1

μA

0.4

V

0.6

VCC -

0.4

V

10

100

nA

10

100

nA

1

μA

1.0

2.2

V

2.0

2.75

V

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