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I2CSTAT 数据表(PDF) 165 Page - Microchip Technology |
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I2CSTAT 数据表(HTML) 165 Page - Microchip Technology |
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165 / 210 page  © 2010 Microchip Technology Inc. DS70139G-page 165 dsPIC30F2011/2012/3012/3013 FIGURE 20-6: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP TIMER TIMING CHARACTERISTICS TABLE 20-21: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER AND BROWN-OUT RESET TIMING REQUIREMENTS AC CHARACTERISTICS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40°C ≤TA ≤+85°C for Industrial -40°C ≤TA ≤+125°C for Extended Param No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions SY10 TmcL MCLR Pulse Width (low) 2 — — μs -40°C to +85°C SY11 TPWRT Power-up Timer Period 2 10 43 4 16 64 8 32 128 ms -40°C to +85°C, VDD = 5V User programmable SY12 TPOR Power On Reset Delay 3 10 30 μs -40°C to +85°C SY13 TIOZ I/O high impedance from MCLR Low or Watchdog Timer Reset —0.8 1.0 μs SY20 TWDT1 TWDT2 TWDT3 Watchdog Timer Time-out Period (No Prescaler) 1.1 1.2 1.3 2.0 2.0 2.0 6.6 5.0 4.0 ms ms ms VDD = 2.5V VDD = 3.3V, ±10% VDD = 5V, ±10% SY25 TBOR Brown-out Reset Pulse Width(3) 100 — — μsVDD ≤VBOR (D034) SY30 TOST Oscillation Start-up Timer Period — 1024 TOSC —— TOSC = OSC1 period SY35 TFSCM Fail-Safe Clock Monitor Delay — 500 900 μs -40°C to +85°C Note 1: These parameters are characterized but not tested in manufacturing. 2: Data in “Typ” column is at 5V, 25°C unless otherwise stated. 3: Refer to Figure 20-2 and Table 20-11 for BOR. VDD MCLR Internal POR PWRT Time-out OSC Time-out Internal RESET Watchdog Timer RESET SY11 SY10 SY20 SY13 I/O Pins SY13 Note: Refer to Figure 20-3 for load conditions. FSCM Delay SY35 SY30 SY12 |
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