datasheet (3).pdf - EEWeb

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dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04 FIGURE 31-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP TIMER TIMING CHARACTERISTICS VDD MCLR Internal POR PWRT Time-out OSC Time-out Internal Reset Watchdog Timer Reset I/O Pins FSCM Delay SY12 SY11 SY30 SY35 Note: Refer to Figure 31-1 for load conditions. SY13 DS70291E-page 358 © 2011 Microchip Technology Inc. SY10 SY20 SY13
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04 TABLE 31-21: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER TIMING REQUIREMENTS Standard Operating Conditions: 3.0V to 3.6V AC CHARACTERISTICS (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 4 8 16 32 64 128 — ms -40°C to +85°C 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 0.68 0.72 1.2 μs — SY20 TWDT1 Watchdog Timer Time-out Period — — — — See Section 28.4 “Watchdog Timer (WDT)” and LPRC specification F21 (Table 31-19) SY30 TOST Oscillator Start-up Time — 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 3.3V, 25°C unless otherwise stated. © 2011 Microchip Technology Inc. DS70291E-page 359
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