KSZ8051MNL Просмотр технического описания (PDF) - Microchip Technology

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KSZ8051MNL

10BASE-T/100BASE-TX Automotive Physical Layer Transceiver

Microchip Technology 

KSZ8051MNL/RNL

FIGURE 2-2:

32-PIN 5 MM X 5 MM QFN ASSIGNMENT, KSZ8051RNL (TOP VIEW)

32 31 30 29 28 27 26 25

GND 1

VDD_1.2 2

VDDA_3.3 3

RXM 4

RXP 5

TXM 6

Paddle

Ground

(on bottom of chip)

24 TXD0

23 TXEN

22 NC

21 INTRP/NAND_Tree#

20 RXER/ISO

19 REF_CLK/B-CAST_OFF

TXP 7

XO 8

18 CRS_DV/CONFIG2

17 VDDIO

9 10 11 12 13 14 15 16

TABLE 2-3: SIGNALS - KSZ8051RNL

Pin

Number

1

2

3

4

5

6

7

8

9

10

Pin Name

GND

VDD_1.2

VDDA_3.3

RXM

RXP

TXM

TXP

XO

XI

REXT

Type

Note 2-1

Description

GND Ground.

P

1.2V core VDD (power supplied by KSZ8091RNB)

Decouple with 2.2 µF and 0.1 µF capacitors to ground.

P

3.3V analog VDD

I/O Physical receive or transmit signal (– differential)

I/O Physical receive or transmit signal (+ differential)

I/O Physical transmit or receive signal (– differential)

I/O Physical transmit or receive signal (+ differential)

O

Crystal feedback for 25 MHz crystal

This pin is a no connect if an oscillator or external clock source is used.

I

25 MHz Mode: 25 MHz ±50 ppm Crystal/Oscillator/External Clock Input

50 MHz Mode: 50 MHz ±50 ppm Oscillator/External Clock Input

I

Set PHY transmit output current

Connect a 6.49 kΩ resistor to ground on this pin.

DS00002310A-page 10

 2016 Microchip Technology Inc.

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