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MPC5634MF0MMGA4 Datasheet(PDF) 81 Page - Freescale Semiconductor, Inc |
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MPC5634MF0MMGA4 Datasheet(HTML) 81 Page - Freescale Semiconductor, Inc |
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81 / 118 page ![]() Electrical characteristics MPC5634M Microcontroller Data Sheet, Rev. 4 Preliminary—Subject to Change Without Notice Freescale Semiconductor 81 3.10 Oscillator and PLLMRFM electrical characteristics Table 24. PLLMRFM electrical specifications1 (VDDPLL =1.14 V to 1.32 V, VSS = VSSPLL = 0 V, TA = TL to TH) Symbol C Parameter Conditions Value Unit min max fref_cryst al fref_ext CC C PLL reference frequency range2 Crystal reference 4 20 MHz C External reference 4 80 fpll_in CC C Phase detector input frequency range (after pre-divider) —4 16 MHz fvco CC C VCO frequency range3 —4 512 MHz fsys CC C On-chip PLL frequency2 —16 80 MHz fsys CC C System frequency in bypass mode4 Crystal reference 4 20 MHz C External reference 0 80 tCYC CC C System clock period — — 1 / fsys ns fLORL fLORH CC C Loss of reference frequency window5 Lower limit 1.6 3.7 MHz C Upper limit 24 56 fSCM CC C Self-clocked mode frequency 6,7 —1.2 75 MHz CJITTER CC C CLKOUT period jitter8,9,10,11 Peak-to-peak (clock edge to clock edge) fSYS maximum –5 5 % fCLKOUT C Long-term jitter (avg. over 2 ms interval) –6 6 ns tcst CC C Crystal start-up time 12, 13 —— 10 ms VIHEXT CC C EXTAL input high voltage Crystal Mode14, 0.8 ≤Vxtal≤1.5V15 Vxtal + 0.4 —V C External Reference14, 16 VRC33/ 2 + 0.4 VRC33 VILEXT CC C EXTAL input low voltage Crystal Mode14, 0.65 ≤Vxtal≤1.25V15 — Vxtal – 0.4 V C External Reference14, 16 0VRC33 /2 – 0.4 — CC C XTAL load capacitance12 — 5 30 pF tlpll CC C PLL lock time 12, 17 —— 200 μs tdc CC C Duty cycle of reference —40 60 % fLCK CC C Frequency LOCK range — –6 6 % fsys |
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