LAN8710AI datasheet(71/82 Pages) MICROCHIP

Part #	LAN8710AI

Description	Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX

PDF	82 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology

Datasheet

SMSC LAN8710A/LAN8710Ai

Revision 1.4 (08-23-12)

DATASHEET

5.5.2

Power Sequence Timing

This diagram illustrates the device power sequencing requirements. The VDDIO, VDD1A, VDD2A and

magnetics power supplies can turn on in any order provided they all reach operational levels within

the specified time period tpon. Device power supplies can turn off in any order provided they all reach

0 volts within the specified time period poff.

Note: When the internal regulator is disabled, a power-up sequencing relationship exists between

VDDCR and the 3.3V power supply. For additional information refer to Section 3.7.4,

"REGOFF: Internal +1.2V Regulator Configuration," on page 38.

Figure 5.2 Power Sequence Timing

Table 5.6 Power Sequence Timing Values

SYMBOL

DESCRIPTION

MIN

TYP

MAX

UNITS

tpon

Power supply turn on time

tpoff

Power supply turn off time

500

VDDIO

Magnetics

Power

tpon

tpoff

VDD1A,

VDD2A

LAN8710AI Datasheet(PDF) 71 Page - Microchip Technology