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MB95430 Datasheet(PDF) 30 Page - fujitsu semiconductor |
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MB95430 Datasheet(HTML) 30 Page - fujitsu semiconductor |
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30 / 56 page  MB95430H Series 30 DS07–12xxx–1E 4. AC Characteristics (1) Clock Timing (VCC = 2.4 V to 5.5 V, VSS = 0.0 V, TA = −40°C to +85°C) *: The external clock signal is input to X0 and the inverted external clock signal to X1. Parameter Symbol Pin name Condition Value Unit Remarks Min Typ Max Clock frequency FCH X0, X1 — 1 — 16.25 MHz When the main oscillation circuit is used X0 X1: open 1 — 12 MHz When the main external clock is used X0, X1 * 1 — 32.5 MHz FCRH —— TBD 12.5 TBD MHz When the main CR clock is used TBD 10 TBD MHz TBD 8 TBD MHz TBD 1 TBD MHz FCL X0A, X1A — — 32.768 — kHz When the sub-oscillation circuit is used — 32.768 — kHz When the sub-external clock is used FCRL — — 50 100 200 kHz When the sub-CR clock is used Clock cycle time tHCYL X0, X1 — 61.5 — 1000 ns When the main oscillation circuit is used X0 X1: open 83.4 — 1000 ns When the external clock is used X0, X1 * 30.8 — 1000 ns tLCYL X0A, X1A — — 30.5 — µs When the subclock is used Input clock pulse width tWH1 tWL1 X0 X1: open 33.4 — — ns When the external clock is used, the duty ratio should range between 40% and 60%. X0, X1 * 12.4 — — ns tWH2 tWL2 X0A — — 15.2 — µs Input clock rise time and fall time tCR tCF X0 X1: open — — 5 ns When the external clock is used X0, X1 * — — 5 ns CR oscillation start time tCRHWK — — — — 80 µs When the main CR clock is used tCRLWK — — — — 10 µs When the sub-CR clock is used |
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