KSZ8721BL Overview
Operating with a 2.5V core to meet low-voltage and low-power requirements, the KS8721BL and KS8721SL are 10BASET/100BASE-TX/FX Physical Layer Transceivers that use MII and RMII interfaces to transmit and receive data. They contain 10BASE-T Physical Medium Attachment (PMA), Physical Medium Dependent (PMD), and Physical Coding Sub-layer (PCS) functions. The KS8721BL/SL also have on-chip 10BASE-T output filtering.
KSZ8721BL Key Features
- Single chip 100BASE-TX/100BASE-FX/10BASE-T physical layer solution
- 2.5V CMOS design; 2.5/3.3V tolerance on I/O
- 3.3V single power supply with built-in voltage regulator; Power consumption <340mW (including output driver current)
- Fully pliant 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
- Supports auto-negotiation and manual selection for 10/100Mbps speed and full-/half-duplex modes
- On-chip, built-in, analog front-end filtering for both 100BASE-TX and 10BASE-T
