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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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IMX7ULPCEC 데이터시트(PDF) 39 Page - NXP Semiconductors |
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IMX7ULPCEC 데이터시트(HTML) 39 Page - NXP Semiconductors |
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39 / 118 page  6.2.1.1 Fast IRC (FIRC) specifications Table 8. FIRC specifications with 48 MHz internal reference frequency Symbol Description Min. Typ. Max. Unit Notes firc48m Internal reference frequency — 48 — MHz Δfirc48m_ol_lv Open loop total deviation of IRC48M frequency -1.5 — 1.5 %firc48m Jcyc_irc48m Period Jitter (RMS) — 35 150 ps tirc48mst Startup time — 2 3 μs 1 1. FIRC startup time is defined as the time between clock enablement and clock availability for system use. Table 9. FIRC specifications with 60 MHz internal reference frequency Symbol Description Min. Typ. Max. Unit Notes firc60m Internal reference frequency — 60 — MHz Δfirc60m_ol_lv Open loop total deviation of IRC60M frequency -1.5 — 1.5 %firc60m Jcyc_irc60m Period Jitter (RMS) — 35 150 ps tirc60mst Startup time — 2 3 μs 1 1. FIRC startup time is defined as the time between clock enablement and clock availability for system use. 6.2.1.2 Slow IRC (SIRC) specifications Table 10. Slow IRC (SIRC) specifications Symbol Description Min Typ Max Unit firc16m Internal reference frequency 15.52 16 16.48 MHz Δfirc16m_ol_lv Open loop total deviation of IRC16M frequency at low voltage (VDD=1.71V-1.89V) over temperature -3% 3% %firc16m_ol_lv 6.2.1.3 Oscillator electrical specifications 6.2.1.3.1 Oscillator DC electrical specifications Table 11. Oscillator DC electrical specifications Symbol Description Min. Typ. Max. Unit Notes Cx EXTAL load capacitance — — — 1 Cy XTAL load capacitance — — — 1 RF Feedback resistor — low-power mode (HGO=0) — — — MΩ 1, 2 Table continues on the next page... System specifications i.MX 7ULP Applications Processor—Consumer Products, Rev. 0, 06/2019 39 NXP Semiconductors |
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