MICREL SEMICONDUCTOR  KSZ8721BL  Ethernet Controller, 100 Mbps, IEEE 802.3u, 2.97 V, 3.63 V, LQFP, 48


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Product Overview

The KSZ8721BL is a single power supply 10/100BASE-TX/FX MII Physical-layer Transceiver, contains 10BASE-T Physical medium attachment (PMA), physical medium dependent (PMD) and physical coding sub-layer (PCS) functions. It also have on-chip 10BASE-T output filtering. This eliminates the need for external filters and allows a single set of line magnetic to be used to meet requirements for both 100BASE-TX and 10BASE-T. It is automatically configure themselves for 100 or 10Mbps and full- or half-duplex operation, using an on-chip auto-negotiation algorithm. The physical layer transceiver is ideal for 100BASE-TX/10BASE-T applications.
  • Single chip 100BASE-TX/100BASE-FX/10BASE-T physical layer solution
  • 2.5V CMOS design
  • <340mW Power consumption (including output driver current)
  • Fully compliant to IEEE 802.3u standard
  • Supports MII and reduced MII (RMII)
  • Supports 10BASE-T, 100BASE-TX and 100BASE-FX with Far_End_Fault detection
  • Supports power-down and power-saving modes
  • Configurable through MII serial management ports or via external control pins
  • On-chip, built-in, analogue front-end filtering for both 100BASE-TX and 10BASE-T
  • Supports MDI/MDI-X auto-crossover


Communications & Networking
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Product Specifications, Documents & More

  • Controller IC Case Style: LQFP
  • Data Rate: 100Mbps
  • Digital IC Case Style: LQFP
  • Ethernet Type: IEEE 802.3u
  • IC Interface Type: MII, RMII
  • MSL: -
  • No. of Pins: 48
  • No. of Ports: 1
  • Operating Temperature Max: 70°C
  • Operating Temperature Min: 0°C
  • Packaging: Each
  • SVHC: To Be Advised
  • Supply Current: 151mA
  • Supply Voltage Max: 3.63V
  • Supply Voltage Min: 2.97V
  • Supply Voltage Range: 2.97V to 3.63V

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Availability: No Longer Manufactured


Quantity List Price
1 - 49 $5.58
50 - 99 $5.04
100 - 249 $4.63
250 - 499 $4.27
500+ $4.00

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