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BCM5238_04 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – 10/100BASE-TX OCTAL-Φ TRANSCEIVER | |||
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BCM5238
®
10/100BASE-TX OCTAL-Φ⢠TRANSCEIVER
FEATURES
⢠Single-chip, eight-port Fast Ethernet transceiver
⢠Low-power 1.8V CMOS technology
⢠Serial Media Independent Interface (SMII)
⢠Source Synchronous SMII (SSSMII)
⢠HP Auto-MDIX automatic crossover
⢠Supports 10BASE-T Polarity Correction
⢠Compatible with 2.5V I/O and 3.3V I/O
⢠Fully integrated digital adaptive equalization
⢠Up to 150 meters of error-free operation
⢠Full-duplex support
⢠Interrupt output capability
⢠128-pin PQFP or 256-ball BGA package
⢠Proven Broadcom proprietary all-DSP Digi-Φ⢠architecture
SUMMARY OF BENEFITS
⢠Target usage: Fast Ethernet switches.
⢠Lowest per port power solution available:< 215 milliwatts per
port.
⢠Smallest footprint per port available.
⢠Measures 14 mm â20 mm for eight ports.
⢠Single-chip device contains eight independent Fast Ethernet
transceivers.
⢠Performs all physical layer interface functions for 100BASE-
TX full-duplex or half-duplex Ethernet on Category 5
unshielded twisted-pair (UTP) cable and 10BASE-T full or
half-duplex Ethernet on Category 3, 4, or 5 UTP cable.
⢠Compliant with IEEE 802.3 standard.
⢠IEEE 1149.1 (JTAG) scan chain support.
⢠Two LED indicator pins per port.
BCM5421
Gigabit
PHY
BCM5421
Gigabit
PHY
BCM5238
OCTAL-Φ
Quad
Magnetics
Quad
Magnetics
BCM5238
OCTAL-Φ
Quad
Magnetics
Quad
Magnetics
BCM5238
OCTAL-Φ
Quad
Magnetics
Quad
Magnetics
24-Port 10/100BASE-T Ethernet Switch Example
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