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UPD703033A Datasheet(PDF) 25 Page - NEC |
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UPD703033A Datasheet(HTML) 25 Page - NEC |
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25 / 29 page  Data Sheet U14734EJ1V0DS00 25 µµµµPD703031A, 703031AY, 703033A, 703033AY, 70F3033A, 70F3033AY (2) Subsystem clock oscillator (TA = –40 to +85°C) (a) Connection of crystal resonator XT1 XT2 Parameter Symbol Conditions MIN. TYP. MAX. Unit Oscillation frequency fXT 32 32.768 35 kHz Oscillation stabilization time – 10 s Cautions 1. Subsystem clock oscillator operates on the output voltage of the on-chip regulator. External clock input is prohibited. 2. When using the subsystem clock oscillator, wire as follows in the area enclosed by the broken lines in the above figure to avoid an adverse effect from wiring capacitance. •••• Keep the wiring length as short as possible. •••• Do not cross the wiring with the other signal lines. •••• Do not route the wiring near a signal line through which a high fluctuating current flows. •••• Always make the ground point of the oscillator capacitor the same potential as VSS. •••• Do not ground the capacitor to a ground pattern through which a high current flows. •••• Do not fetch signals from the oscillator. 3. Sufficiently evaluate the matching between the µµµµPD703031A, 703031AY, 703033A, 703033AY, 70F3033A, 70F3033AY and the resonator. |
Similar Part No. - UPD703033A |
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Similar Description - UPD703033A |
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