•
Target usage: Fast Ethernet switches.
•
Lowest per port power solution available:
< 215 milliwatts per port.
•
Smallest footprint per port available.
•
Measures 14 mm ∞ 20 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.
24-Port 10/100 Switch
SUMMARY OF BENEFITS
SMII SMII SMII
BCM5421
Gigabit
PHY
BCM5421
Gigabit
PHY
BCM5238
OCTAL-Φ
BCM5238
OCTAL-Φ
BCM5238
OCTAL-Φ
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
•
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
•
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
BCM5238 FEATURES
10/100BASE-TX OCTAL-Φ™ TRANSCEIVER
®
PRODUCTPRODUCT
BriefBrief
BCM5238