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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SPEAR1340 датащи(PDF) 142 Page - STMicroelectronics |
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SPEAR1340 датащи(HTML) 142 Page - STMicroelectronics |
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142 / 200 page  Electrical characteristics SPEAr1340 142/200 Doc ID 023063 Rev 4 4.4.2 IOTYPE4 I/O buffers There is only one I/O pin of this type: XGPIO169 (ball K28). Features ● 3.3 V signaling ● Programmable pull-up/down functionality DC characteristics Table 49 shows the DC characteristics of IOTYPE4 buffers. Table 49. IOTYPE4 DC characteristics Symbol Parameter Conditions Min Typ Max Unit VDD 3V3 Supply voltage - 3.0 - 3.6 V Receiver characteristics(1) 1. External drivers must be powered at the same voltage as the relative SPEAr input pad. VIH High level input voltage -2.0 - VDD 3V3+0.5 V VIL Low level input voltage --0.5 - 0.8 V Driver characteristics IOH Source current VOH= VDD 3V3-0.2 8 - - mA IOL Sink current VOL= 0.2 8 - - mA Pull-up and pull-down characteristics RPU Equivalent pull-up resistance Vpad = 0 - 50 - K Ω RPD Equivalent pull-down resistance Vpad = VDD 3V3 - 50 - K Ω |
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