KS8721SL Micrel Inc, KS8721SL Datasheet

KS8721SL

Manufacturer Part Number

KS8721SL

Description

TXRX 10/100 3.3V 48-SSOP

Manufacturer

Micrel Inc

Type

Transceiverr

Datasheets

1.KSZ8721BLI_TR.pdf (2 pages)

2.KS8721SL.pdf (35 pages)

Specifications of KS8721SL

Number Of Drivers/receivers

1/1

Protocol

IEEE 802

Voltage - Supply

2.375 V ~ 2.625 V

Mounting Type

Surface Mount

Package / Case

48-SSOP

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

For Use With

576-1010 - BOARD EVAL EXPERIMENT KS8721SL

Lead Free Status / RoHS Status

Not Compliant, Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

KS8721SL

Manufacturer:

KENDIN

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

KS8721SLTR

Manufacturer:

MICREL

Quantity:

1 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

KS8721SLTR

Manufacturer:

MICREL/麦瑞

Quantity:

20 000

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Micrel Semiconductor

3.3V 10/100BASE-TX/FX Physical Layer Transceiver

Description

The KS8721BL/SL is a 10BASE-T, 100BASE-TX, and

100BASE-FX physical layer transceiver providing MII/

RMII interfaces to MACs and switches. Using a unique

mixed-signal design that extends signaling distance while

reducing power consumption, the KS8721BL/SL repre-

sents Micrel’s fourth generation single-port Fast Ethernet

PHY.

Micrel’s architecture dissipates an ultra-low 275mW in

power, including transmit output drivers. This translates to

increased reliability while enabling deployment in today’s

power-sensitive applications. Multiple power-down modes,

accessed via configuration pins or registers, allow further

levels of power saving through manual selection or auto-

matic detection of cable energy.

Block Diagram

www.micrel.com

RX+

RX–

TX+

TX–

Transmitter

PLL

TEL:

10BASE-T

Baseline Wander

Receiver

MLT3 Decoder

1.408.944.0800

Adaptive EQ

NRZI/NRZ

Correction

Shaper

10/100

Pulse

FAX:

1.408.474.1000

MLT3 Encoder

NRZ/NRZI

Power-Saving

Power-Down/

Negotiation

PWRDWN

Recovery

’s

Clock

Auto

The KS8721BL/SL automatically configures itself for

100Mbps or 10Mbps and full- or half-duplex operation,

using an on-chip auto-negotiation algorithm. Combined

with Auto MDI/MDIX for automatic correction and detec-

tion of crossover and straight-through cables, the

KS8721BL/SL provides an easy-to-use, high performance

solution for 10BASE-T, 100BASE-TX, and 100BASE-FX

applications.

For additional information, contact your local Micrel Field

Application Engineer or salesperson.

HTTP://

www.micrel.com

Manchester Encoder

Manchester Decoder

4B/5B Encoder

4B/5B Decoder

Serial/Parallel

Parallel/Serial

Serial/Parallel

Descrambler

Scrambler

Product Brief

KS8721BL/SL

Registers

Controller

MII/RMII

Interface

Driver

LED

and

TXD3

TXD2

TXD1

TXD0

TXER

TXC

TXEN

CRS

COL

MDIO

MDC

RXD3

RXD2

RXD1

RXD0

RXER

RXDV

RXC

COL

FDX

SPD

LINK

Related parts for KS8721SL

KS8721SL Summary of contents

Page 1

Physical Layer Transceiver Description The KS8721BL/ 10BASE-T, 100BASE-TX, and 100BASE-FX physical layer transceiver providing MII/ RMII interfaces to MACs and switches. Using a unique mixed-signal design that extends signaling distance while reducing power consumption, the ...

Page 2

... Easy migration from earlier KS8721B/BT family members. • Programmable in environments with and without CPU. • Environmentally friendly and rugged. • • KS8721BL in 48-pin LQFP for space-constrained and • KS8721SL in mainstream 48-pin SSOP. KS8721BL/SL Fast Ethernet PHY RMII RJ-45 with Integrated ...

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