synopsys学习资料-Micrel_KS8721BL__LQFP48__Ethernet-Phy-int-LDO.pdf

KS8721BL/SL Micrel KS8721BL/SL 3.3V Single Power Supply 10/100BASE-TX/FX MII Physical Layer Transceiver Rev. 1.1 General Description Features Operating with a 2.5V core to meet low-voltage and low- • Single chip 100BASE-TX/100BASE-FX/10BASE-T power requirements, the KS8721BL and KS8721SL are physical layer solution 10BASE-T/100BASE-TX/FX Physical Layer Transceivers • 2.5V CMOS design; 2.5/3.3V tolerance on I/O that use MII and RMII interfaces to transmit and receive data. • 3.3V single power supply with built-in voltage regulator; They contain 10BASE-T Physical Medium Attachment (PMA), Power consumption 340mW (including output driver Physical Medium Dependent (PMD), and Physical Coding current) Sub-layer (PCS) functions. The KS8721BL/SL also have on- • Fully compliant to IEEE 802.3u standard chip 10BASE-T output filtering. This eliminates the need for • Supports MII and Reduced MII (RMII) external filters and allows a single set of line magnetics to be • Supports 10BASE-T, 100BASE-TX, and 100BASE-FX used to meet requirements for both 100BASE-TX and with Far_End_Fault Detection 10BASE-T. • Supports power-down and power-saving modes The KS8721BL/SL automatically configures itself for 100 or • Configu