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MCF51QM128VHS Datasheet(PDF) 11 Page - Freescale Semiconductor, Inc |
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MCF51QM128VHS Datasheet(HTML) 11 Page - Freescale Semiconductor, Inc |
11 / 71 page 5.2.2 LVD and POR operating requirements Table 2. LVD and POR operating requirements Symbol Description Min. Typ. Max. Unit Notes VPOR Falling VDD POR detect voltage 0.8 1.1 1.5 V VLVDH Falling low-voltage detect threshold — high range (LVDV=01) 2.48 2.56 2.64 V VLVW1H VLVW2H VLVW3H VLVW4H Low-voltage warning thresholds — high range • Level 1 falling (LVWV=00) • Level 2 falling (LVWV=01) • Level 3 falling (LVWV=10) • Level 4 falling (LVWV=11) 2.62 2.72 2.82 2.92 2.70 2.80 2.90 3.00 2.78 2.88 2.98 3.08 V V V V 1 VHYSH Low-voltage inhibit reset/recover hysteresis — high range — ±80 — mV VLVDL Falling low-voltage detect threshold — low range (LVDV=00) 1.54 1.60 1.66 V VLVW1L VLVW2L VLVW3L VLVW4L Low-voltage warning thresholds — low range • Level 1 falling (LVWV=00) • Level 2 falling (LVWV=01) • Level 3 falling (LVWV=10) • Level 4 falling (LVWV=11) 1.74 1.84 1.94 2.04 1.80 1.90 2.00 2.10 1.86 1.96 2.06 2.16 V V V V 1 VHYSL Low-voltage inhibit reset/recover hysteresis — low range — ±60 — mV VBG Bandgap voltage reference 0.97 1.00 1.03 V tLPO Internal low power oscillator period factory trimmed 900 1000 1100 μs 1. Rising thresholds are falling threshold + hysteresis voltage Nonswitching electrical specifications MCF51QM128 Data Sheet, Rev. 6, 01/2012. Freescale Semiconductor, Inc. 11 |
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