BCM5304M 데이터 시트보기 (PDF) - Broadcom Corporation
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BCM5304M Datasheet PDF : 2 Pages
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BCM5304M
PRODUBCrTief
BCM5304M 5-PORT MANAGED 10/100BASE-T/TX SWITCH
BCM5304M FEATURES
• 5-Port 10/100 Switch Integrating the MACs, Switching
Fabric and 4 Transceivers into a Single Chip
• Supports Full-Wire Speed, Full-Duplex Traffic on
Every Port Simultaneously
• Cascadable up to 12 Ports, with a BCM5308M
• Serial Management Port (SMP) Provided for CPU
• Hardware support for SNMP, RMON, and Spanning Tree
• On Board 32/64-Bit Counters Support Popular MIBs
• Glueless Interface to Low-Cost 256k Bytes or 512k Bytes
SSRAM, Configurable to use a Single 64k x 32 Device
• 5.2 Gb/s Memory Bandwidth Provided per Device
• MII Connection for External Phy (FX or TX)
• 2.6 Gb/s Expansion Port Cascades up to 3 Devices in a
Daisy-Chain Configuration
• Flow Control: Full-Duplex (802.3x) and Half-Duplex
Options Supported
• Direct LED Interface Provides Status on each Port
• Low-Power 3.3V Design in .35µ CMOS Technology
• 352-Pin TBGA Package
SUMMARY OF BENEFITS
• World’s most integrated 10/100 managed switch
• Lowest cost solution for SOHO and entry-level
corporate applications
• Smallest form factor (reduces board space by 50%)
• Scalable architecture supports 4 to 12 port densities
• Fifth port supports any external Ethernet MII
transceiver
• Eliminates cost of external LED latches and drivers
• Robust and field-proven Digi-Φ™ based 10/100
transceivers
• Substantially simplifies board and system design
• Integrated transceivers eliminate pin-intensive media
Independent Interface (MII)
• Internal PLL generates all system clocks from a single
25 MHz source
• Fully manageable with external CPU
• Basic management statistics can be gathered and
reported with only a very low-cost microcontroller
12-Port Managed Switch Using SMP & 100 Mb/s Uplink Interface
Optional 2nd
TX/FX Uplink Module
CPU
5201
ODL
TX/FX Uplink Port
D
5201
Mag
MII
SSRAM
5304M
MII
SSRAM
5308M
LED Matrix
Quad
Magn.
Quad Quad
Magn. Magn.
4 x RJ-45
LED Matrix
8 x RJ-45
12 Front Panel Ports
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