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ML4642CQ Scheda tecnica(PDF) 3 Page - Micro Linear Corporation |
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ML4642CQ Scheda tecnica(HTML) 3 Page - Micro Linear Corporation |
3 / 15 page 3 ML4642 PIN DESCRIPTIONS PIN NO. NAME FUNCTION DESCRIPTION 1 RXLED/LPBK/SQE I/O Active low receive LED driver for MAU port. If tied to ground, this pin enables internal loopback of the active TXIN pair to the RXOUT pairs and enables SQE test. If tied to 0.6 volts internal loopback is enable but SQE test is disabled. SQE and loopback are disabled when this pin is pulled high. 2 RXINP Input Receive signal pair for MAU port. 3 RXINN Onput Receive signal pair for MAU port. 4 JAB1/JDIS I/O Active low jabber LED driver for DTE port 1. If tied to ground, the jabber function is disabled at TXIN1 and TXIN2. 5 RRSET Input Bias setting external resistor, 61.9Ký. 6VCC Power +5 volt power supply 7 TXOUTP Output Transmit signal pair for MAU port. 8 TXOUTN Output Transmit signal pair for MAU port. 9 TXLED1 Output Open collector, active low transmit LED driver for DTE AUI port 1. 10 TXLED2 Output Open collector, active low transmit LED driver for DTE AUI port 2. 11 TXIN2P Input Transmit signal pair for DTE port 2. 12 TXIN2N Input Transmit signal pair for DTE port 2. 13 TXIN1P Input Transmit signal pair for DTE port 1. 14 TXIN1N Input Transmit signal pair for DTE port 1. 15 VCC Power +5 volt power supply 16 CDOUT2N Output Collision signal pair for DTE port 2. 17 CDOUT2P Output Collision signal pair for DTE port 2. 18 CDLED Output Open collector, active low collision LED driver. 19 CDINN Input Collision signal pair for MAU port. 20 CDINP Input Collision signal pair for MAU port. 21 JAB2 Output Open collector, active low jabber LED driver for DTE port 2. 22 CDOUT1P Output Collision signal pair for DTE port 1. 23 CDOUT1N Output Collision signal pair for DTE port 1. 24 GND Ground GND. 25 RXOUT2P Output Receive signal pair for DTE port 2. 26 RXOUT2N Output Receive signal pair for DTE port 2. 27 RXOUT1N Output Receive signal pair for DTE port 1. 28 RXOUT1P Output Receive signal pair for DTE port 1. |
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