PM3386 datasheet(49/315 Pages) PMC

49 / 315 page

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PM3386

DATASHEET

PMC-1991129

ISSUE 7

DUAL GIGABIT ETHERNET CONTROLLER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Notes on Pin Description:

1. All PM3386 inputs and bi-directional signals present minimum capacitive

loading and operate at TTL logic levels except the inputs marked as Analog

or PECL.

2. The GTX_CLK0, GTX_CLK1, TXD0[7:0], TXD1[7:0], TX_ER0, TX_ER1,

TX_EN0, TX_EN1, MDC, MDIO, STPA, PTPA, DTPA[1:0], RVAL,

RDATA[31:0], RPRTY, RMOD[1:0], RSOP, REOP, RERR, RSX, PAUSED0,

PAUSED1, D[15:0], INTB, and TDO outputs have 6mA drive capability.

3. All digital inputs are 5V tolerant.

4. The PECL inputs and outputs should be terminated in a passive network and

interface at PECL levels as described in the Operations section.

5. It is mandatory that every ground pin (VSS) be connected to the printed

circuit board ground plane to ensure reliable device operation.

6. It is mandatory that every digital power pin (VDDI, VDDO, and VDDQ) be

connected to the printed circuit board power planes to ensure reliable device

operation.

7. All analog power pins can be sensitive to noise. They must be isolated from

the digital power. Care must be taken to correctly decouple these pins.

8. It is mandatory that every analog power pin (AVDL, AVDH, and AVDQ) be

de-coupled from but connected to the printed circuit board power planes to

ensure reliable device operation.

8. Due to ESD protection structures in the pads it is necessary to exercise

caution when powering a device up or down. ESD protection devices behave

as diodes between power supply pins and from I/O pins to power supply pins.

Under extreme conditions it is possible to damage these ESD protection

devices or trigger latch up. Please adhere to the recommended power supply

sequencing as described in the Operation section of this document.

PM3386 Datasheet(PDF) 49 Page - PMC-Sierra, Inc