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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VSC8541-01 датащи(PDF) 13 Page - Microsemi Corporation |
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VSC8541-01 датащи(HTML) 13 Page - Microsemi Corporation |
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13 / 100 page  Overview VMDS-10496 VSC8541-01 Datasheet Revision 4.2 3 2.1.3 Fast Link Up/Link Drop Modes • Fast link failure indication (<1 ms typical, programmable down to <10 µS) • Supports 1000Base-T forced mode for both master and slave end point configurations with constant link self-monitoring and link auto-reset should the link come down 2.1.4 Best-in-Class Power Consumption • EcoEthernet™ v2.0 green energy efficiency with ActiPHY™, PerfectReach™, and IEEE 802.3az Energy-Efficient Ethernet • Fully optimized power consumption for all link speeds • Clause 45 registers to support Energy-Efficient Ethernet 2.1.5 Key Specifications • Compliant with IEEE 802.3 (10BASE-T, 100BASE-TX, and 1000BASE-T) specifications • Supports R/G/MII • Supports 1.5 V, 1.8 V, 2.5 V, and 3.3 V CMOS for RGMII versions 1.3 and 2.0 (without HSTL support), GMII/MII as well as RMII version 1.2 • Supports a variety of clock sources: 25 MHz Xtal, 25 MHz OSC, 50 MHz OSC, 125 MHz OSC • Supports programmable output frequencies of 25 MHz, 50 MHz, or 125 MHz, regardless of chosen Xtal or OSC frequencies • Supports a wide array of stand-alone hardware configuration options • Supports all 5 bits of MDIO/MDC addressing possible for managed mode designs using pull-up/pull- down resistors • Low alpha mold compound enables 80 SER FIT (VSC8541XMV-04 only) • Devices support operating temperatures of –40 °C ambient to 125 °C junction or 0 °C ambient to 125 °C junction • Optionally reports if a link partner is requesting inline Power-over-Ethernet (PoE and PoE+) • Available in 8 mm x 8 mm, 68-pin QFN package 2.2 Block Diagram The following illustration shows the primary functional blocks of the VSC8541-01 device. Figure 2 • Block Diagram LED[1:0] 10/100/ 1000BASE-T PMA COMA_MODE NRESET MDC MDIO MDINT Management and Control Interface (MIIM) PLL and Analog CLKOUT XTAL1/REFCLK XTAL2 REFCLK_SEL[1:0] REF_FILT_A REF_REXT_A LED Interface RCVRD_CLK CLK_SQUELCH_IN FASTLINK_FAIL Sync Ethernet 10/100/ 1000BASE-T PCS MDI Twisted Pair Interface P0_D0N P0_D0P P0_D1N P0_D1P P0_D2N P0_D2P P0_D3N P0_D3P PO_TX P0_RX MICRO 8051 Temp Diode MAC Interface (R/G/MII, RMII) THERMDC THERMDA |
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