High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

Chapter 15 Operational Characteristics

15.1Absolute Maximum Ratings*

Supply Voltage (VDD33A1, VDD33A2, VDD33BIAS, VDD33IO) (Note 15.1) . . . . . . . . . . . 0V to +3.6V

Positive voltage on signal pins, with respect to ground (Note 15.2) . . . . . . . . . . . . . . . . . . . . . . . . . +6V

Negative voltage on signal pins, with respect to ground (Note 15.3) . . . . . . . . . . . . . . . . . . . . . . . -0.5V

Positive voltage on XI, with respect to ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4.6V

Positive voltage on XO, with respect to ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.5V

Ambient Operating Temperature in Still Air (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55oC to +150oC

Lead Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Refer to JEDEC Spec. J-STD-020

HBM ESD Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..+/- 5kV

Note 15.1 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 that a clamp circuit be used.

Note 15.2 This rating does not apply to the following pins: XI, XO, EXRES.

Note 15.3 This rating does not apply to the following pins: EXRES.

*Stresses exceeding those listed in this section could cause permanent damage to the device. This is a stress rating only. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Functional operation of the device at any condition exceeding those indicated in Section 15.2, "Operating Conditions**", Section 15.4, "DC Specifications", or any other applicable section of this specification is not implied. Note, device signals are NOT 5 volt tolerant.

15.2Operating Conditions**

Supply Voltage (VDD33A1, VDD33A2, VDD33BIAS, VDD33IO). . . . . . . . . . . . . . . . . +3.3V +/- 300mV

Ambient Operating Temperature in Still Air (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC

**Proper operation of the LAN9312 is guaranteed only within the ranges specified in this section.

Revision 1.4 (08-19-08)

440

SMSC LAN9312

 

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