bcm5488s Broadcom Corp., bcm5488s Datasheet
bcm5488s
Manufacturer Part Number
bcm5488s
Description
Bcm5488s - Octal-port 10/100/1000base-t Gigabit Copper Transceiver
Manufacturer
Broadcom Corp.
Datasheet
1.BCM5488S.pdf
(2 pages)
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OCTAL-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER
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Eight fully-integrated 10BASE-T/100BASE-TX/1000BASE-T
Gigabit Ethernet transceivers
Ethernet@Wirespeed™ and super isolate mode support
Fully compliant with IEEE 802.3, IEEE 802.3u, and
IEEE 802.3ab standards
0.13-micron CMOS—low power and cost
Supports line side copper or 100BASE-FX fiber mode
Low power
Trace-matched output impedance
Line-side loopback
Low EMI emissions
CableChecker™ diagnostics
Robust cable-sourced electrostatic discharge (CESD) tolerance
Support for jumbo packets up to 10 KB
IEEE 1149.1 (JTAG) and 1149.6 (AC-JTAG) boundary scan
Package: 484-pin PBGA
SGMII and SerDes MAC interface options
- <625 mW per port
- Advanced power management
- CableChecker detection of cable plant impairments
- Link quality indication LED
- Automatic detection and correction of wiring pair swaps,
- Automatic MDI/MDIX crossover at all speeds
pair skew, and pair polarity
F E A T U R E S
®
10/100/1000
Ethernet
Switch
Mbps
BCM5488S System Diagram
10/100/1000BASE-T
10/100/1000BASE-T
Mbps Ethernet
Mbps Ethernet
BCM5488S
Switch
Switch
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Low-power, octal-port integration enables single-row, high-
port density switches.
Provides compatibility with IEEE standard devices operating at
10 Mbps, 100 Mbps, and 1000 Mbps at half-duplex and full-
duplex.
Lowers system BOM cost and simplifies system design.
Eases system level debug.
Enables use of low-cost magnetics, even in high-density (48+)
designs.
CableChecker characterizes cable plant condition and
immediately indicates cabling issues.
Over 3 kV of CESD tolerance prevents equipment damage and
return.
Operates with larger packets for wider range of packet protocol
support and improved efficiency.
Ease of manufacturing with JTAG support, simplified power
supply, and multiple MAC interfaces.
- Lowers system costs by eliminating PCB layers required for
- Reduced I/O pin requirements with SGMII (over 75%) and
- Lowers MAC/switch costs by reducing the number of pins
- Prevents erroneous equipment return due to bad cable
- Prevents manufacturing fallout due to bad cable plants.
S U M M A R Y O F B E N E F I T S
routing high-density solutions.
SerDes (over 80%).
required to interface with the PHY.
plants.
Integrated
Magnetics
RJ-45s
2x8
with
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bcm5488s Summary of contents
Page 1
... Over CESD tolerance prevents equipment damage and return. • Operates with larger packets for wider range of packet protocol support and improved efficiency. • Ease of manufacturing with JTAG support, simplified power supply, and multiple MAC interfaces. BCM5488S System Diagram 10/100/1000 Mbps Ethernet 10/100/1000BASE-T Switch Mbps Ethernet Switch ...
Page 2
... Low power is the key to implementing high-density Gigabit Ethernet switches, and the BCM5488S has the lowest power in the industry at less than 625 mW per port. In addition, the BCM5488S has extremely low EMI emissions, which reduces the design constraints required to meet EMI radiation specifications. ...