Datasheet

KSZ8863MLL/FLL/RLL
DS00002335B-page 4  2017 Microchip Technology Inc.
1.0 INTRODUCTION
1.1 General Description
KSZ8863MLL, KSZ8863FLL, and KSZ8863RLL are highly integrated 3-port switch-on-a-chip ICs in the industry’s small-
est footprint. They are designed to enable a new generation of low port count, cost-sensitive, and power-efficient 10/
100 Mbps switch systems. Low power consumption, advanced power management, and sophisticated QoS features
(for example, IPv6 priority classification support) make these devices ideal for IPTV, IP-STB, VoIP, automotive, and
industrial applications.
The KSZ8863 family is designed to support the GREEN requirement in today’s switch systems. Advanced power man-
agement schemes include software power down, per port power down, and energy detect mode that shuts down the
transceiver when a port is idle.
KSZ8863MLL/FLL/RLL also offers a bypass mode that enables system-level power saving. In this mode, the processor
connected to the switch through the MII interface can be shut down without impacting the normal switch operation.
The configurations provided by the KSZ8863 family enable the flexibility to meet the requirements of different applica-
tions:
• KSZ8863MLL: Two 10/100BASE-T/TX transceivers and one MII interface
• KSZ8863RLL: Two 10/100BASE-T/TX transceivers and one RMII interface
• KSZ8863FLL: One 100BASE-FX, one 10/100BASE-T/TX transceivers, and one MII interface
The devices are available in RoHS-compliant 48-pin LQFP packages. Industrial-grade and automotive-grade are also
available.
FIGURE 1-1: SYSTEM BLOCK DIAGRAM
1K LOOK-UP
ENGINE
QUEUE
MANAGEMENT
BUFFER
MANAGEMENT
FRAME
BUFFERS
MIB
COUNTERS
EEPROM
INTERFACE
YTIROIRP ,GNIGGAT NALV ,LORTNOC WOLF ,OFIF
10/100
MAC 1
10/100
MAC 2
10/100
MAC 3
10/100
T/TX/FX
PHY 1
10/100
T/TX
PHY 2
HP AUTO
MDIX
HP AUTO
MDIX
2x MII/RMII
SPI
SPI
CONTROL
REGISTERS
MIIM
SMI
STRAP IN
CONFIGURATION
LED
DRIVERS
I2C
P1 LED[1:0]
P2 LED[1:0]