English
Language : 

VSC7421-04 Datasheet, PDF (1/2 Pages) Vitesse Semiconductor Corporation – 17-Port Layer 2 Gigabit Ethernet Switch
PRODUCT BRIEF
17-Port Layer 2 Gigabit Ethernet Switch with
12 Fully Integrated Copper PHYs
Vitesse’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 eight copper PHYs in a single package. In
conjunction with Vitesse’s 4-port VSC8514-03 or VSC8664-03 devices,
a 17-port switch can be designed using only two ICs.
The device leverages Vitesse’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.
VSC7421-04
Highlights
• Supports IEEE 802.3az and
green energy efficiency modes
with ActiPHY and
PerfectReach
• Lowest BOM solution requires
only one IC
• 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
SPI Flash
SI
VSC7421-04
SparX-III
17 × 1G with
12 CuPHYs
4 × SGMII
1 ×QSGMII
VSC8514-03
4-Port CuPHY
12
RJ-45
4
RJ-45
SS SS
FFFF
PP PP
Copper
Copper
Copper or Fiber Modules
VSC7421-04 in a 16-port in 1-Gigabit industrial switch application