LAN89730 datasheet(193/218 Pages) MICROCHIP

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 2013-2015 Microchip Technology Inc.

DS60001348A-page 193

LAN89730

7.0

OPERATIONAL CHARACTERISTICS

7.1

Absolute Maximum Ratings*

+3.3 V Supply Voltage (VDD33IO, VDD33A) Note 7-1.................................................................................... 0 V to +3.6 V

+1.2 V Supply Voltage (VDD12CORE, VDD12PLL, VDD12USBPLL, VDD12A) Note 7-1.................................. 0 V to +1.32 V

Positive voltage on input signal pins, with respect to ground Note 7-2 ................................................. VDD33IO + 0.3 V

Negative voltage on input signal pins, with respect to ground Note 7-3 ..................................................................-0.3 V

Positive voltage on XI, with respect to ground ........................................................................................................1.26 V

Storage Temperature ..............................................................................................................................-55oC to +150oC

Maximum Junction Temperature Under Bias ....................................................................................................... .+125oC

Note 7-1

Supply voltage ratings are for externally supplied voltages. When powering this device from laboratory

or system power supplies, it is important that the absolute maximum ratings not be exceeded or device

failure can result. Some power supplies exhibit voltage spikes on their outputs when AC power is

switched on or off. In addition, voltage transients on the AC power line may appear on the DC output.

If this possibility exists, it is suggested to use a clamp circuit.

Note 7-2

This rating does not apply to the following pins: XI, XO, EXRES, USBRBIAS, HSIC_STROBE,

HSIC_DATA.

Note 7-3

This rating does not apply to the following pins: EXRES, USBRBIAS, HSIC_STROBE, HSIC_DATA.

* Stresses exceeding those listed in this section could cause permanent damage to the device. This is a stress rating

only. Functional operation of the device at any condition exceeding those indicated in Section 7.2, "Operating Condi-

tions**", Section 7.5, "DC Specifications", or any other applicable section of this specification is not implied. Note, device

signals are NOT 5 Volt tolerant unless specified otherwise.

7.2

Operating Conditions**

+3.3 V Supply Voltage (VDD33IO, VDD33A) .................................................................................................. +3.3 V +/-5%

+1.2 V Supply Voltage (VDD12CORE, VDD12PLL, VDD12USBPLL, VDD12A) .................................................. +1.2 V +/-5%

Ambient Operating Temperature in Still Air (TA)***................................................................................... -40oC to +85oC

** Supply voltage ratings are for externally supplied voltages. Proper operation of the device is guaranteed only within

the ranges specified in this section.

*** Junction temperature must not exceed +125°C.

7.3

Package Thermal Specifications

TABLE 7-1:

PACKAGE THERMAL PARAMETERS

Parameter

Symbol

Value

Unit

Comments

Thermal resistance

ΘJA

31.0

oC/W

Measured in still air from the die to ambient air

Junction-to-Top-of-Package

ΨJT

0.3

oC/W

Measured in still air

Note:

Thermal parameters are measured or estimated for devices in a multi-layer 2S2P PCB per JESD51.

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