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MB90495 Datasheet(PDF) 23 Page - Fujitsu Component Limited. |
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MB90495 Datasheet(HTML) 23 Page - Fujitsu Component Limited. |
23 / 40 page MB90495 Series MB90495 Series Data Sheet (Advance Information) 23 / 40 FME EMDC June 19, 2000 14. AC CHARACTERISTICS 14.1 Clock Timing (TA = –40 to +85 °C, VCC = 5.0 V 10%, VSS = AVSS = 0 V) *: Frequency deviation indicates the maximum frequency difference from the target frequency when using a multiplied clock. Parameter Symbol Pin Rated Value Units Remarks Min. Typ. Max. Oscillation frequency fC X0, X1 3 — 16 MHz fCL X0A, X1A — 32.768 — kHz Oscillation cycle time tHCYL X0, X1 62.5 — 333 ns tLCYL X0A, X1A — 30.5 — µs Frequency deviation with PLL * ∆f— — — 5 % Input clock pulse width PWH, PWL X0 10 — — ns Duty ratio is about 30 to 70%. PWLH,PWLL X0A — 15.2 — µs Input clock rise and fall time tCR, tCF X0 — — 5 ns When using external clock Machine clock frequency fCP — 1.5 — 16 MHz When using main clock fLCP — — 8.192 — kHz When using sub-clock Machine clock cycle time tCP — 62.5 — 666 ns When using main clock tLCP — — 122.1 — µs When using sub-clock |a| fO +a Central frequency fO –a ∆f = × 100% tHCYL PWH tCF PWL tCR 0.8 VCC 0.2 VCC X0 tLCYL PWLH tCF PWLL tCR 0.8 VCC 0.2 VCC X0A |
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