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LQFP100 数据表(PDF) 94 Page - STMicroelectronics |
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LQFP100 数据表(HTML) 94 Page - STMicroelectronics |
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94 / 133 page ![]() Electrical characteristics SPC560B54x/6x 94/133 DocID15131 Rev 9 4.15 Fast internal RC oscillator (16 MHz) electrical characteristics The device provides a 16 MHz main internal RC oscillator. This is used as the default clock at the power-up of the device. Table 41. FMPLL electrical characteristics Symbol C Parameter Conditions(1) Value Unit Min Typ Max fPLLIN SR — FMPLL reference clock(2) —4 — 64 MHz PLLIN SR — FMPLL reference clock duty cycle(2) —40 — 60 % fPLLOUT CC P FMPLL output clock frequency — 16 — 64 MHz fVCO (3) CC P VCO frequency without frequency modulation —256 — 512 MHz P VCO frequency with frequency modulation — 245.76 — 532.48 fCPU SR — System clock frequency — — — 64 MHz fFREE CC P Free-running frequency — 20 — 150 MHz tLOCK CC P FMPLL lock time Stable oscillator (fPLLIN = 16 MHz) 40 100 µs t STJIT CC — FMPLL short term jitter(4) fsys maximum –4 — 4 % t LTJIT CC — FMPLL long term jitter fPLLCLK at 64 MHz, 4000 cycles — — 10 ns IPLL CC C FMPLL consumption TA = 25 °C — — 4 mA 1. VDD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified 2. PLLIN clock retrieved directly from FXOSC clock. Input characteristics are granted when oscillator is used in functional mode. When bypass mode is used, oscillator input clock should verify fPLLIN and PLLIN. 3. Frequency modulation is considered ± 4%. 4. Short term jitter is measured on the clock rising edge at cycle n and n+4. Table 42. Fast internal RC oscillator (16 MHz) electrical characteristics Symbol C Parameter Conditions(1) Value Unit Min Typ Max fFIRC CC P Fast internal RC oscillator high frequency TA = 25 °C, trimmed — 16 — MHz SR — — 12 20 IFIRCRUN (2) CC T Fast internal RC oscillator high frequency current in running mode TA = 25 °C, trimmed — — 200 µA IFIRCPWD CC D Fast internal RC oscillator high frequency current in power down mode TA = 25 °C — — 10 µA |
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