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FM8PE53B Datasheet(PDF) 25 Page - Feeling Technology Corp. |
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FM8PE53B Datasheet(HTML) 25 Page - Feeling Technology Corp. |
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25 / 53 page  FM8PE53B Web site: http://www.feeling-tech.com.tw Rev1.02.011 Aug 21, 2014 P.25/FM8PE53B FEELING TECHNOLOGY 2.8 Oscillator Configurations FM8PE53B can be operated in six different oscillator modes. Users can program FOSC configuration bit to select the appropriate modes: ERC: External Resistor/Capacitor Oscillator HF: High Frequency Crystal/Resonator Oscillator XT: Crystal/Resonator Oscillator LF: Low Frequency Crystal Oscillator IRC: Internal Resistor/Capacitor Oscillator ERIC: External Resistor/Internal Capacitor Oscillator In LF, XT, or HF modes, a crystal or ceramic resonator in connected to the OSCI and OSCO pins to establish oscillation. When in LF, XT, or HF modes, the devices can have an external clock source drive the OSCI pin. The ERC device option offers additional cost savings for timing insensitive applications. The RC oscillator frequency is a function of the resistor (Rext) and capacitor (Cext), the operating temperature, and the process parameter. The IRC/ERIC device option offers largest cost savings for timing insensitive applications. These devices offer 4 different internal RC oscillator frequency, 8 MHz, 4 MHz, 1 MHz, and 455 KHz, which is selected by configuration bit (Fosc). Or user can change the oscillator frequency with external resistor. The ERIC oscillator frequency is a function of the resistor (Rext), the operating temperature, and the process parameter. Figure 2.6: HF, XT or LF Oscillator Modes (Crystal Operation or Ceramic Resonator) FM8PE53B RF OSCI OSCO RS C1 C2 X`TAL R1 SLEEP Internal Circuit Figure 2.7: HF, XT or LF Oscillator Modes (External Clock Input Operation) FM8PE53B OSCI OSCO Clock from External System |
Similar Part No. - FM8PE53B |
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Similar Description - FM8PE53B |
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