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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC32MX795F512LT-80I/PF датащи(PDF) 199 Page - Microchip Technology |
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PIC32MX795F512LT-80I/PF датащи(HTML) 199 Page - Microchip Technology |
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199 / 256 page  © 2009-2011 Microchip Technology Inc. DS61156G-page 199 PIC32MX5XX/6XX/7XX FIGURE 31-5: EXTERNAL RESET TIMING CHARACTERISTICS TABLE 31-22: RESETS TIMING AC CHARACTERISTICS Standard Operating Conditions: 2.3V to 3.6V (unless otherwise stated) Operating temperature -40°C ≤TA ≤+85°C for Industrial -40°C ≤TA ≤+105°C for V-Temp Param. No. Symbol Characteristics(1) Min. Typical(2) Max. Units Conditions SY00 TPU Power-up Period Internal Voltage Regulator Enabled —400 600 μs -40°C to +85°C SY01 TPWRT Power-up Period External VCORE Applied (Power-up timer active) 48 64 80 ms -40°C to +85°C SY02 TSYSDLY System Delay Period: Time Required to Reload Device Configuration Fuses plus SYSCLK Delay before First instruction is Fetched. — 1 μs + 8 SYSCLK cycles — — -40°C to +85°C SY20 TMCLR MCLR Pulse Width (low) — 2 — μs -40°C to +85°C SY30 TBOR BOR Pulse Width (low) — 1 — μs -40°C to +85°C Note 1: These parameters are characterized, but not tested in manufacturing. 2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Characterized by design but not tested. MCLR (SY20) Reset Sequence (SY10) CPU Starts Fetching Code BOR (SY30) TOST TMCLR TBOR Reset Sequence CPU Starts Fetching Code Clock Sources = (FRC, FRCDIV, FRCDIV16, FRCPLL, EC, ECPLL and LPRC) Clock Sources = (HS, HSPLL, XT, XTPLL and SOSC) (TSYSDLY) SY02 (TSYSDLY) SY02 |
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