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AC104X-DS00-R Datasheet(PDF) 1 Page - Broadcom Corporation. |
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AC104X-DS00-R Datasheet(HTML) 1 Page - Broadcom Corporation. |
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1 / 50 page  PRELIMINARY DATA SHEET ■ AC104X AC104X-DS00-405-R 16215 Alton Parkway • P.O. Box 57013 • Irvine, CA 92619-7013 • Phone: 949-450-8700 •Fax: 949-450-8710 12/11/01 2.5V 4-Port 10/100-TX Ethernet Transceiver Figure 1: Functional Block Diagram The AC104X is a highly integrated, 2.5V, low power, four port, 10BASE-T/100BASE-TX, Ethernet transceiver implemented in 0.25mm CMOS technology. Multiple modes of operation, including normal operation, test mode and power saving mode, are available through either hardware or software control. Features include ENDECs, Scrambler/Descrambler, and Auto-Negotiation (ANeg) with support for parallel detection. The transmitter includes a dual-speed clock synthesizer that only needs one external clock source. The chip has built-in wave shaping driver circuit for both 10Mbps and 100Mbps, eliminating the need for an external hybrid filter. The receiver has an adaptive equalizer / DC restoration circuit for accurate clock / data recovery for the 100BASE-TX signal. It also provides an on-chip low pass filer / Squelch circuit for the 10BASE-T signal. • 4 ports with RMII MAC interface • 4 ports with 10/100 TX media interface • Full-Duplex or Half-Duplex • Very small package • 100PQFP • Very low power - TYP < 280mW / port • Cable Detect mode - TYP < 40 mW / port • Power Down mode - TYP < 3.3 mW / port • 2.5V .25 micron CMOS • RMII 3.3V tolerant I/O • Fully compliant with • IEEE 802.3 / 802.3u •RMII • Baseline Wander Compensation • Multi-Function LED outputs • Cable length indicator • Reverse polarity detection and correction with Regis- ter Bit indication - Automatic or Forced • HP Auto-MDIX • 8 programmable interrupts Port A Port B Port C Mux MII Serial Management Interface and Registers PLL Clk Gen. Test/LED Control 100TX 100RX 10TX 10RX Auto- Negotiation RX FLP 25 MHz 20 MHz Control/Status PHYAD[4:0] CKIN TEST[3:0] LED Drivers 25 MHz Port D RMII MDIO/MDC TXOP/N(A) RXIP/N(A) TXOP/N(B) RXIP/N(B) TXOP/N(C) RXIP/N(C) PCS .Framer .Carrier Detect .4B/5B PMA .Clock Recov. .Link Monitor .Signal Detect 10BASE-T TP_PMD .MLT-3 .BLW .Stream Cipher TXOP/N(D) RXIP/N(D) GEN E RA L DES CRI P T I O N F E A T U RE S |
Similar Part No. - AC104X-DS00-R |
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Similar Description - AC104X-DS00-R |
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