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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PSD813F2 датащи(PDF) 75 Page - STMicroelectronics |
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PSD813F2 датащи(HTML) 75 Page - STMicroelectronics |
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75 / 110 page  PSD8XX Family PSD835G2 74 AC/DC Parameters The following tables describe the AD/DC parameters of the PSD8XX family: t DC Electrical Specification t AC Timing Specification • PLD Timing – Combinatorial Timing – Synchronous Clock Mode – Asynchronous Clock Mode – Input Micro ⇔Cell Timing • Microcontroller Timing – Read Timing – Write Timing – Peripheral Mode Timing – Power Down and Reset Timing Following are issues concerning the parameters presented: t In the DC specification the supply current is given for different modes of operation. Before calculating the total power consumption, determine the percentage of time that the PSD8XX is in each mode. Also, the supply power is considerably different if the Turbo bit is "OFF". t The AC power component gives the PLD, Flash memory, and SRAM mA/MHz specification. Figures 32 and 32a show the PLD mA/MHz as a function of the number of Product Terms (PT) used. t In the PLD timing parameters, add the required delay when Turbo bit is "OFF". Figure 32. PLD ICC /FrequencyConsumption (VCC = 5 V ± 10%) 0 10 20 30 40 60 70 80 90 100 110 VCC = 5V 50 010 15 5 20 25 HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz) TURBO ON (100%) TURBO ON (25%) TURBO OFF PT 100% PT 25% |
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