Datasheet KSZ8999 (Microchip) - 8
| Manufacturer | Microchip |
| Description | Integrated 9-Port 10/100 Switch with PHY and Frame Buffer |
| Pages / Page | 53 / 8 — Micrel, Inc. KS8999 Pin Description |
| File Format / Size | PDF / 449 Kb |
| Document Language | English |
Micrel, Inc. KS8999 Pin Description
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Micrel, Inc. KS8999 Pin Description
Pin Number Pin Name Type(1) 1 VDD_RX Pwr 2.0V for equalizer 2 GND_RX GND Ground for equalizer 3 GND_RX GND Ground for equalizer 4 VDD_RX Pwr 2.0V for equalizer 5 RXP[3] I 3 Physical receive signal + (differential) 6 RXM[3] I 3 Physical receive signal -(differential) 7 AOUT2 O Factory test output 8 DOUT2 O Factory test output 9 TXP[3] O 3 Physical transmit signal + (differential) 10 TXM[3] O 3 Physical transmit signal -(differential) 11 QH[5] Opd Factory test pin –leave open for normal operation 12 QH[4] Opd Factory test pin –leave open for normal operation 13 QH[3] Opd Factory test pin –leave open for normal operation 14 QH[2] Opd Factory test pin –leave open for normal operation 15 GND_TX GND Ground for transmit circuitry 16 VDD_TX Pwr 2.0V for transmit circuitry 17 VDD_TX Pwr 2.0V for transmit circuitry 18 GND-ISO GND Analog ground 19 TXP[4] O 4 Physical transmit signal + (differential) 20 TXM[4] O 4 Physical transmit signal -(differential) 21 GND_TX GND 22 RXP[4] I 4 Physical receive signal + (differential) 23 RXM[4] I 4 Physical receive signal -(differential) 24 GND_RX GND Ground for equalizer 25 VDD_RX Pwr 2.0V for equalizer 26 ISET 27 GND-ISO GND Analog ground 28 VDD_RX Pwr 2.0V for equalizer 29 GND_RX GND Ground for equalizer 30 RXP[5] I 5 Physical receive signal + (differential) 31 RXM[5] I 5 Physical receive signal -(differential) 32 GND_TX GND 33 TXP[5] O 5 Physical transmit signal + (differential) 34 TXM[5] O 5 Physical transmit signal -(differential) 35 GND-ISO GND Analog ground 36 VDD_TX Pwr 2.0V for transmit circuitry 37 VDD_TX Pwr 2.0V for transmit circuitry 38 GND_TX GND Ground for transmit circuitry January 2005 Port Pin Function Ground for transmit circuitry Set physical transmit output current Ground for transmit circuitry 8 KS8999
Pin Number Pin Name Type(1) 1 VDD_RX Pwr 2.0V for equalizer 2 GND_RX GND Ground for equalizer 3 GND_RX GND Ground for equalizer 4 VDD_RX Pwr 2.0V for equalizer 5 RXP[3] I 3 Physical receive signal + (differential) 6 RXM[3] I 3 Physical receive signal -(differential) 7 AOUT2 O Factory test output 8 DOUT2 O Factory test output 9 TXP[3] O 3 Physical transmit signal + (differential) 10 TXM[3] O 3 Physical transmit signal -(differential) 11 QH[5] Opd Factory test pin –leave open for normal operation 12 QH[4] Opd Factory test pin –leave open for normal operation 13 QH[3] Opd Factory test pin –leave open for normal operation 14 QH[2] Opd Factory test pin –leave open for normal operation 15 GND_TX GND Ground for transmit circuitry 16 VDD_TX Pwr 2.0V for transmit circuitry 17 VDD_TX Pwr 2.0V for transmit circuitry 18 GND-ISO GND Analog ground 19 TXP[4] O 4 Physical transmit signal + (differential) 20 TXM[4] O 4 Physical transmit signal -(differential) 21 GND_TX GND 22 RXP[4] I 4 Physical receive signal + (differential) 23 RXM[4] I 4 Physical receive signal -(differential) 24 GND_RX GND Ground for equalizer 25 VDD_RX Pwr 2.0V for equalizer 26 ISET 27 GND-ISO GND Analog ground 28 VDD_RX Pwr 2.0V for equalizer 29 GND_RX GND Ground for equalizer 30 RXP[5] I 5 Physical receive signal + (differential) 31 RXM[5] I 5 Physical receive signal -(differential) 32 GND_TX GND 33 TXP[5] O 5 Physical transmit signal + (differential) 34 TXM[5] O 5 Physical transmit signal -(differential) 35 GND-ISO GND Analog ground 36 VDD_TX Pwr 2.0V for transmit circuitry 37 VDD_TX Pwr 2.0V for transmit circuitry 38 GND_TX GND Ground for transmit circuitry January 2005 Port Pin Function Ground for transmit circuitry Set physical transmit output current Ground for transmit circuitry 8 KS8999
