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MC81F4316S Datasheet(PDF) 43 Page - Finechips |
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MC81F4316S Datasheet(HTML) 43 Page - Finechips |
43 / 200 page ![]() MC81F4x16 October 19, 2009 Ver.1.35 43 7.12 Main clock Oscillator Characteristics (TA = - 40C to + 85C, VDD = 2.2 V to 5.5 V) Oscillator Parameter Conditions Min Typ. Max Units Crystal Main oscillation frequency 2.2 V – 5.5 V 1.0 – 4.2 MHz 2.7 V – 5.5 V 1.0 – 8.0 4.0 V – 5.5 V 1.0 – 12.0 Ceramic Oscillator Main oscillation frequency 2.2 V – 5.5 V 1.0 – 4.2 MHz 2.7 V – 5.5 V 1.0 – 8.0 4.0 V – 5.5 V 1.0 – 12.0 External Clock XIN input frequency 2.2 V – 5.5 V 1.0 – 4.2 MHz 2.7 V – 5.5 V 1.0 – 8.0 4.0 V – 5.5 V 1.0 – 12.0 7.13 External RC Oscillation Characteristics (TA = - 40 C to + 85C, VDD = 2.2 V to 5.5 V) Parameter Symbol Conditions Min Typ. Max Units RC oscillator frequency Range (1) fERC TA = 25C 1 – 8 MHz Accuracy of RC Oscillation (2) ACCERC VDD =5.5V, TA = 25C – 6 – + 6 % VDD =5.5V, TA = – 40 C to + 85C – 12 – + 12 RC oscillator setup time (3) tSUERC TA = 25C – – 10 mS Note : 1. The external resistor is connected between VDD and XIN pin and the 270pF capacitor is connected between XIN and V SS pin. (X OUT pin can be used as a normal port). The frequency is adjusted by external resistor. 2. The min/max frequencies are within the range of RC OSC frequency (1MHz to 8MHz) 3. Data based on characterization results, not tested in production |
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