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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PSD511B1 датащи(PDF) 113 Page - STMicroelectronics |
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PSD511B1 датащи(HTML) 113 Page - STMicroelectronics |
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113 / 153 page  PSD5XX Family 110 0 20 60 80 100 120 40 010 15 5 20 25 PT100% PT25% COMPOSITE FREQUENCY AT PLD INPUTS (MHz) TURBO ON TURBO ON TURBO OFF TURBO OFF Figure 50. ZPLD Typical ICC / Frequency Consumption (5 V) Specifications (cont.) 13.4 AC/DC Parameters The following tables describe the AC/DC parameters of the PSD5XX family: t DC Electrical Specification t AC Timing Specification • ZPLD Timing – Combinatorial Delays – Synchronous Clock Mode – Asynchronous Clock Mode • Microcontroller Timing – Read Timing – Write Timing – Peripheral Mode Timing – Power Down and Reset Timing • PSD5XX Specific Timings – Counter/Timer Timing – Interrupt Controller Timing Following are some 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 PSD5XX is in each mode. Also the current is considerably different if the ZPLD_TURBO bit is "OFF" and EPROM_CMISER is "ON". t The AC power component provides the ZPLD, EPROM, SRAM and TIMER mA/MHz specification. Figure 50 shows the ZPLD mA/MHz as a function of the number of Product Terms (PT) used. t In the ZPLD timing parameters add the required delay when ZPLD_TURBO is "OFF". t In the MCU timing specification, add the required time delay when EPROM_CMISER is "ON". |
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