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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F628-20/SS датащи(PDF) 138 Page - Microchip Technology |
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PIC16F628-20/SS датащи(HTML) 138 Page - Microchip Technology |
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138 / 160 page  PIC16F62X DS40300B-page 138 Preliminary © 1999 Microchip Technology Inc. 17.4 Timing Parameter Symbology The timing parameter symbols have been created with one of the following formats: FIGURE 17-5: LOAD CONDITIONS TABLE 17-3: DC CHARACTERISTICS: PIC16F62X, PIC16LF62X 1. TppS2ppS 2. TppS T F Frequency T Time Lowercase subscripts (pp) and their meanings: pp ck CLKOUT osc OSC1 io I/O port t0 T0CKI mc MCLR Uppercase letters and their meanings: S F Fall P Period HHigh R Rise I Invalid (Hi-impedance) V Valid L Low Z Hi-Impedance DC Characteristics Standard Operating Conditions (unless otherwise stated) Parameter No. Sym Characteristic Min Typ† Max Units Conditions Data EEPROM Memory D120 Ed Endurance 1M* 10M —E/W 25 °C at 5V D121 Vdrw VDD for read/write VMIN —5.5 V VMIN = Minimum operating voltage D122 Tdew Erase/Write cycle time — 4 8* ms Program Flash Memory D130 Ep Endurance 1000* 10000 — E/W D131 Vpr VDD for read Vmin — 5.5 V VMIN = Minimum operating voltage D132 Vpew VDD for erase/write 4.5 — 5.5 V D133 Tpew Erase/Write cycle time — 4 8* ms * These parameters are characterized but not tested. † Data in “Typ” column is at 5.0V, 25 °C unless otherwise stated. These parameters are for design guidance only and are not tested. VDD/2 CL RL Pin Pin VSS VSS CL RL =464 Ω CL = 50 pF for all pins except OSC2 15 pF for OSC2 output Load condition 1 Load condition 2 |
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