PIC24HJ64 Datasheet

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PIC24HJ32GP302/304, <strong>PIC24HJ64</strong>GPX02/X04, AND PIC24HJ128GPX02/X04 FIGURE 27-2: EXTERNAL CLOCK TIMING Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 OSC1 CLKO OS20 OS30 OS25 OS30 OS31 OS31 OS41 OS40 TABLE 27-16: EXTERNAL CLOCK 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. Symb Characteristic Min Typ (1) Max Units Conditions OS10 FIN External CLKI Frequency (External clocks allowed only in EC and ECPLL modes) DC — 40 MHz EC Oscillator Crystal Frequency 3.5 10 — — — 10 40 33 MHz MHz kHz OS20 TOSC TOSC = 1/FOSC 12.5 — DC ns OS25 TCY Instruction Cycle Time (2) 25 — DC ns OS30 TosL, TosH External Clock in (OSC1) High or Low Time 0.375 x TOSC — 0.625 x TOSC ns EC OS31 TosR, TosF External Clock in (OSC1) Rise or Fall Time — — 20 ns EC XT HS SOSC OS40 TckR CLKO Rise Time (3) — 5.2 — ns OS41 TckF CLKO Fall Time (3) — 5.2 — ns Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. 2: Instruction cycle period (TCY) equals two times the input oscillator time-base period. All specified values are based on characterization data for that particular oscillator type under standard operating conditions with the device executing code. Exceeding these specified limits may result in an unstable oscillator operation and/or higher than expected current consumption. All devices are tested to operate at “min.” values with an external clock applied to the OSC1/CLKI pin. When an external clock input is used, the “max.” cycle time limit is “DC” (no clock) for all devices. 3: Measurements are taken in EC mode. The CLKO signal is measured on the OSC2 pin. DS70293B-page 286 Preliminary © 2008 Microchip Technology Inc.
PIC24HJ32GP302/304, <strong>PIC24HJ64</strong>GPX02/X04, AND PIC24HJ128GPX02/X04 TABLE 27-17: AC CHARACTERISTICS PLL CLOCK TIMING SPECIFICATIONS (VDD = 3.0V TO 3.6V) Param No. OS50 FPLLI PLL Voltage Controlled Oscillator (VCO) Input Frequency Range OS51 FSYS On-Chip VCO System Frequency Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +85°C for Industrial -40°C ≤ TA ≤ +125°C for Extended Symbol Characteristic Min Typ (1) Max Units Conditions 0.8 — 8 MHz ECPLL, HSPLL, XTPLL modes 100 — 200 MHz OS52 TLOCK PLL Start-up Time (Lock Time) 0.9 1.5 3.1 mS OS53 DCLK CLKO Stability (Jitter) -3 0.5 3 % Measured over 100 ms period Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only and are not tested. TABLE 27-18: AC CHARACTERISTICS: INTERNAL RC ACCURACY Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated) AC CHARACTERISTICS Operating temperature -40°C ≤ TA ≤ +85°C for Industrial -40°C ≤ TA ≤ +125°C for Extended Param No. Characteristic Min Typ Max Units Conditions Internal FRC Accuracy @ 7.3728 MHz (1,2) F20 FRC -2 — +2 % -40°C ≤ TA ≤ +85°C VDD = 3.0-3.6V FRC -5 — +5 % -40°C ≤ TA ≤ +125°C VDD = 3.0-3.6V Note 1: Frequency calibrated at 25°C and 3.3V. TUN bits can be used to compensate for temperature drift. 2: FRC is set to initial frequency of 7.37 MHz (±2%) at 25°C. TABLE 27-19: INTERNAL RC ACCURACY Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated) AC CHARACTERISTICS Operating temperature -40°C ≤ TA ≤ +85°C for Industrial -40°C ≤ TA ≤ +125°C for Extended Param No. Characteristic Min Typ Max Units Conditions LPRC @ 32.768 kHz (1) F21 LPRC -20 ±6 +20 % -40°C ≤ TA ≤ +85°C VDD = 3.0-3.6V LPRC -70 — +70 % -40°C ≤ TA ≤ +125°C VDD = 3.0-3.6V Note 1: Change of LPRC frequency as VDD changes. © 2008 Microchip Technology Inc. Preliminary DS70293B-page 287
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