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AM79C975VCW 数据表(PDF) 26 Page - Advanced Micro Devices |
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AM79C975VCW 数据表(HTML) 26 Page - Advanced Micro Devices |
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26 / 304 page ![]() 26 Am79C973/Am79C975 P R E L I M INARY PIN DESIGNATIONS Listed by Group (Concluded) Notes: 1. Not including test features. 2. PHY power and ground pins require careful decoupling to ensure proper device performance. Pin Name Pin Function Type1 Driver No. of Pins Power Supplies (MAC, PCI, Buffer, ROM) VDD Digital Power P NA 6 VSS Digital Ground P NA 7 VDDB I/O Buffer Power P NA 6 VSSB I/O Buffer Ground P NA 17 VDD_PCI PCI I/O Buffer Power P NA 9 Power Supplies (PHY)2 DVDDA Analog PLL Power P NA 1 DVDDD, DVDDP Physical Data Transceiver (PDX) Power, IREF P NA 2 DVSSD, DVSSP Physical Data Transceiver (PDX) Ground P NA 2 DVDDTX, DVDDRX PHY I/O Buffer Power P NA 2 DVSSX PHY Ground P NA 1 DVDDCO Crystal Oscillator Power P NA 1 |
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