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数据搜索系统，热门电子元器件搜索 |
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AM79C970A 数据表(PDF) 20 Page - Advanced Micro Devices |
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AM79C970A 数据表(HTML) 20 Page - Advanced Micro Devices |
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20 / 219 page  AMD P R E L I M I N A R Y 20 Am79C970A PIN DESIGNATIONS Listed By Driver Type The next table describes the various types of drivers that are used in the PCnet-PCI II controller: Name Type I OL (mA) I OH (mA) Load (pF) LED LED 12 -0.4 50 O6 Totem Pole 6 -0.4 50 OD6 Open Drain 6 N/A 50 STS6 Sustained Tri-State TM 6-2 50 TS3 Tri-State 3 -2 50 TS6 Tri-State 6 -2 50 All IOL and IOH values shown in the table above apply to 5 V signaling. See the section “DC Characteristics” for the values applying to 3.3 V signaling. A sustained tri-state signal is a low active signal that is driven high for one clock period before it is left floating. DO, TDO and TPO are differential output drivers. The characteristic of these and the XTAL output are de- scribed in the section “DC Characteristics”. |
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