KS8721SL Micrel Inc, KS8721SL Datasheet
![TXRX 10/100 3.3V 48-SSOP](/photos/6/84/68448/576-48-ssop_sml.jpg)
KS8721SL
Manufacturer Part Number
KS8721SL
Description
TXRX 10/100 3.3V 48-SSOP
Manufacturer
Micrel Inc
Type
Transceiverr
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
Part Number:
KS8721SL
Manufacturer:
KENDIN
Quantity:
20 000
Company:
Part Number:
KS8721SLTR
Manufacturer:
MICREL
Quantity:
1 000
Part Number:
KS8721SLTR
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
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–
XO
XI
Transmitter
PLL
TEL:
10BASE-T
Baseline Wander
Baseline Wander
Receiver
MLT3 Decoder
MLT3 Decoder
1.408.944.0800
Adaptive EQ
Adaptive EQ
NRZI/NRZ
Correction
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
solution for 10BASE-T, 100BASE-TX, and 100BASE-FX
applications.
applications.
For additional information, contact your local Micrel Field
For additional information, contact your local Micrel Field
Application Engineer or salesperson.
Application Engineer or salesperson.
HTTP://
www.micrel.com
Manchester Encoder
Manchester Decoder
4B/5B Encoder
4B/5B Decoder
Serial/Parallel
Parallel/Serial
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 ...