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AX88796BLF 数据表(PDF) 8 Page - ASIX Electronics Corporation |
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AX88796BLF 数据表(HTML) 8 Page - ASIX Electronics Corporation |
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8 / 82 page ![]() ASIX ELECTRONICS CORPORATION 8 AX88796BLF / AX88796BLI 2.5 Miscellaneous pins group Signal Type Pin No. Description XTALIN I 61 Crystal/Oscillator Input: A 25Mhz crystal, +/- 50 PPM can be connected across XTALIN and XTALOUT. CMOS Local Clock: A 25Mhz clock, +/- 50 PPM, 40%-60% duty cycle. Note that the pin does not support 3.3V or 5V voltage supply. XTALOUT O 62 Crystal/Oscillator Output: A 25Mhz crystal, +/- 50 PPM can be connected across XTALIN and XTALOUT. If a single-ended external clock (LCLK) is connected to XTALIN, the crystal output pin should be left floating. RSTn I5/S 17 Reset: Reset is active low then place AX88796B into reset mode. During the rising edge the AX88796B loads the power on setting data. TCLK I5/PD 56 Test Clock Pins: As a clock input for ASIC testing only No connection when normal operation TCLK_EN I5/PD/S 57 Enable TCLK in to ASIC as a main clock for test only. No connection when normal operation TEST2 I5/S 12 TEST mode select Connect to ground when normal operation TEST1 I5/S 13 TEST mode select Connect to ground when normal operation VCC3A3 P 1 Power Supply for Analog Circuit: +3.3V DC. GND3A3 P 2 Power Supply for Analog Circuit: +0V DC or Ground Power. VCC18A P 5, 60 Analog power for oscillator, PLL, and Ethernet PHY differential I/O pins, 1.8V GND18A P 8, 63 Analog ground for oscillator, PLL, and Ethernet PHY differential I/O pins. V18F P 9 On-chip 3.3V to 1.8V Regulator output +1.8V DC. VCC3R3 P 10 On-chip 3.3V to 1.8V Regulator power supply: +3.3V DC. GND3R3 P 11 On-chip 3.3V to 1.8V Regulator ground. GND P 18, 26, 58 Ground. VCC3IO P 25, 44 Power Supply for IO: +3.3V DC. VCCK P 24, 43, 59 Power Supply for core logic: +1.8V DC. Tab - 5 miscellaneous pins group |
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