LAN9500AI datasheet(12/66 Pages) SMSC

12 / 66 page

USB 2.0 to 10/100 Ethernet Controller

Datasheet

Revision 1.1 (04-18-13)

SMSC LAN950x Family

DATASHEET

Chapter 3 Pin Description and Configuration

Note: ** This pin is a no-connect (NC) for LAN9500A/LAN9500Ai, but may be connected to VDD33A

for backward compatibility with LAN9500/LAN9500i.

Note: *** For LAN9500A/LAN9500Ai this pin provides additional PME related functionality. Refer to

the respective pin descriptions and Chapter 6, "PME Operation," on page 41 for additional

information.

Note: **** For LAN9500A/LAN9500Ai GPIO7 may provide additional PHY Link Up related

functionality.

Note: When HP Auto-MDIX is activated, the TXN/TXP pins can function as RXN/RXP and vice-versa.

Note: Exposed pad (VSS) on bottom of package must be connected to ground.

Figure 3.1 Pin Assignments (TOP VIEW)

VSS

SMSC

LAN950x

56 PIN QFN

(TOP VIEW)

TXEN

nSPD_LED/GPIO10 ***

RXER

CRS/GPIO3

COL/GPIO0 ***

TXCLK

VDD33IO

TEST1

VDDCORE

VDD33IO

TXD3/GPIO7/EEP_SIZE ****

TXD2/GPIO6/PORT_SWAP

TXD1/GPIO5/RMT_WKP

TXD0/GPIO4/EEP_DISABLE

nLNKA_LED/GPIO9 ***

nFDX_LED/GPIO8 ***

VDD33IO

nRESET ***

MDIO/GPIO1 ***

MDC/GPIO2

VDDCORE

VBUS_DET ***

VDDUSBPLL

USBRBIAS

VDD33A

LAN9500AI Datasheet(PDF) 12 Page - SMSC Corporation

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