VSC7421-04
17-Port Layer 2 Gigabit Ethernet Switch with 12 Fully Integrated Copper PHYs
Microsemi’s next-generation switch device delivers the industry’s lowest
power GbE switching solution.
VSC7421-04 is the industry’s first fully integrated 17-port Gigabit
Ethernet switch with 12 copper PHYs in a single package. In
conjunction with Microsemi’s 4-port VSC8504-03 or VSC8664-03
devices, a 17-port switch can be designed using only two ICs.
The device leverages Microsemi’s 65 nm technology, resulting in one
of the most cost-effective and lowest power consumption solutions in
the industry. It includes the most advanced Ethernet energy efficiency
features for bringing green technology solutions to market.
A rich set of Ethernet switching features, such as Layer 2 forwarding
with VLAN and QoS processing, enables the delivery of differentiated
services. The VSC7421-04 device contains an 8051 CPU for light
management of the switch.
A comprehensive application software package is provided for LED
control, loop indication, device overheat protection, and other enhanced
functions.
Highlights
• Supports IEEE 802.3az and green energy
efficiency modes with ActiPHY™ and
PerfectReach™
• Lowest BOM solution requires only two ICs
• One QSGMII MAC interface and up to four
SGMII ports with 100 Mbps and 1 Gbps
fiber support
Applications
• Unmanaged and Lightly Managed Ethernet
switches
• Industrial switches and routers
• Customer premises equipment (CPE) and
outdoor equipment
• VPN, firewall, and UTM appliances
VSC7421-04 in a 16-Port 1-Gigabit Industrial Switch Application
SPI Flash
SI
VSC7421-04
SparX-III
17 × 1G with
12 Copper
PHYs
12
RJ-45
4× SGMII
1× QGMII
VSC8504-03
4-Port
Copper PHY
4
RJ-45
Copper
Copper
Copper or Fiber
Modules
Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability
whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction
with mission-critical equipment or applications. Any performance specifications are believed to be reliable but are not verified, and Buyer must conduct and complete all performance and other testing of the products, alone
and together with, or installed in, any end-products. Buyer shall not rely on any data and performance specifications or parameters provided by Microsemi. It is the Buyer’s responsibility to independently determine suitability
of any products and to test and verify the same. The information provided by Microsemi hereunder is provided “as is, where is” and with all faults, and the entire risk associated with such information is entirely with the Buyer.
Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other IP rights, whether with regard to such information itself or anything described by such information. Information provided in
this document is proprietary to Microsemi, and Microsemi reserves the right to make any changes to the information in this document or to any products and services at any time without notice.
SFP
SFP
SFP
SFP
VSC7421-04
17-Port Layer 2 Gigabit Ethernet Switch with 12 Fully Integrated Copper PHYs
Best-In-Class Power Consumption
• Lowest power 17-port Gigabit Ethernet switch available in the
market
• Green energy efficiency modes including ActiPHY™, Perfect-
Reach™, and Draft IEEE 802.3az
• Two ICs reduce overall power requirements
• Optimal power consumption for all link speeds
• Wire-speed hardware-based learning and CPU-based learning
configurable per port
• Independent and shared VLAN learning
• Jumbo frame support up to 12.2 kilobytes with per-port pro-
grammable MTU
• Provider Bridging (VLAN Q-in-Q) support (IEEE 802.1ad)
• 4 megabits of integrated shared packet memory
Features
• Twelve integrated IEEE 802.3ab-compliant
10/100/1000BASE-T Ethernet copper transceivers with
VeriPHY™ cables diagnostics
• Two configuration options: 12 × CuPHY + 2 × 1G SGMII +
2 × 1G/2.5G SGMII, 12 × CuPHY + 1× QGMII + 1 × 1G/2.5G
SGMII
• Integrated 250 MHz 8051 CPU with 64 KB internal storage
• Serial interface for external CPU register access
• Device overheat protection
• Hardware loop detection
• Integrated fan controller
• 8K MAC addresses and 4K VLAN support
• Push/pop VLAN tag
• Supports IEEE 1149.1 JTAG boundary scan, IEEE 1149.6
JTAG, 1 Gbps SGMII, and 100BASE-FX and 1000BASE-X
QoS
• Eight QoS queues per port with strict or deficit-weighted round
robin scheduling
• QoS classification based on IEEE 802.1p and IPv4/IPv6 DSCP
• Data rate shaper and policer per-queue, per-port for both
ingress and egress directions
• Full-duplex flow control (IEEE 802.3x) and halfduplex backpres-
sure, symmetric and asymmetric
• Multicast and broadcast storm control with flooding control
Key Specifications
• 1 V core power supply
• 2.5 V I/O power supplies
• –40 °C to 125 °C temperature range
Related Products
Visit
www.microsemi.com
for information about these related
products:
• Ethernet switches
• 1G copper PHYs
• MACs
Layer 2 Switching
• 17-port Gigabit Ethernet switch with nonblocking wire-speed
performance
• Link aggregation (IEEE 802.3ad) with programmable traffic
distribution based on Layer 2 through Layer 4 information
L2 Forwarding
and Policers
Ingress and Egress
Statistics
VLAN and QoS
Classi cation
17× 1G MAC
I/O Muxing
12× Copper
PHY
1× QSGMII
Shared Queue System
4 Mb Memory
DWRR Scheduler
and Shapers
VLAN Editing and
DSCP Remarking
8051 CPU
64 KB Integrated RAM
JTAG, SPI, MIIM
14× GPIO:
LED
UART
SIO
IRQ
Two-Wire Serial
Fan Controller
4× SGMII
12×
10/100/1000 Mbps
1× QSGMII
1000BASE-X
100BASE-FX
2× 1G + 2× 1G/2.5G SGMII
1000BASE-X
100BASE-FX
Microsemi Corporate Headquarters
One Enterprise, Aliso Viejo, CA 92656 USA
Within the USA: +1 (800) 713-4113
Outside the USA: +1 (949) 380-6100
Sales: +1 (949) 380-6136
Fax: +1 (949) 215-4996
email: sales.support@microsemi.com
www.microsemi.com
Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for com-
munications, defense and security, aerospace, and industrial markets. Products include high-performance and radiation-
hardened analog mixed-signal integrated circuits, FPGAs, SoCs, and ASICs; power management products; timing and
synchronization devices and precise time solutions; voice processing devices; RF solutions; discrete components; enter-
prise storage and communications solutions, security technologies, and scalable anti-tamper products; Ethernet solutions;
Power-over-Ethernet ICs and midspans; custom design capabilities and services. Microsemi is headquartered in Aliso Viejo,
California, and has approximately 4,800 employees worldwide. Learn more at www.microsemi.com.
©2014–2018 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are registered trademarks of Microsemi Corporation. All other trademarks
and service marks are the property of their respective owners.
VPPD-03731. 1.1. 5/18
ADI 工业技术
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
