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PIC18F6620 Datasheet(PDF) 5 Page - Microchip Technology |
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PIC18F6620 Datasheet(HTML) 5 Page - Microchip Technology |
5 / 12 page © 2005 Microchip Technology Inc. DS80172C-page 5 PIC18F8720/8620/6720/6620 2. Module: Timing Diagrams and Specifications Table 26-6: External Clock Timing Requirements for PIC18FX620/X720 devices (page 322) has been revised (changes and additions are shown in bold text). TABLE 26-6: EXTERNAL CLOCK TIMING REQUIREMENTS 3. Module: CCP In Section 23.3.1 “Wake-up From Sleep”, the list of peripheral interrupts which can wake the device from Sleep has been updated. From the list of 11 events, item 4 has been clarified and item 5 has been removed. The list now reads as follows: 1. PSP read or write. 2. TMR1 interrupt. Timer1 must be operating as an asynchronous counter. 3. TMR3 interrupt. Timer3 must be operating as an asynchronous counter. 4. CCP Capture mode interrupt (Capture will not occur). 5. MSSP (Start/Stop) bit detect interrupt. 6. MSSP transmit or receive in Slave mode (SPI/I2C). 7. USART RX or TX (Synchronous Slave mode). 8. A/D conversion (when A/D clock source is RC). 9. EEPROM write operation complete. 10. LVD interrupt. Param No. Symbol Characteristic Min Max Units Conditions 1A FOSC External CLKI Frequency(1) DC 25 MHz EC, ECIO oscillator, PIC18FX620/X720 (Industrial) DC 16 MHz EC, ECIO oscillator, PIC18FX620/X720 (Extended) Oscillator Frequency(1) DC 4 MHz RC oscillator 0.1 4 MHz XT oscillator 4 25 MHz HS oscillator (Industrial) 4 16 MHz HS oscillator (Extended) 4 6.25 MHz HS + PLL oscillator, PIC18FX620/X720 (Industrial) 4 4 MHz HS + PLL oscillator, PIC18FX620/X720 (Extended) 5 33 kHz LP Oscillator mode 1TOSC External CLKI Period(1) 40 — ns EC, ECIO oscillator, PIC18FX620/X720 (Industrial) 62.5 — ns EC, ECIO oscillator, PIC18FX620/X720 (Extended) Oscillator Period(1) 250 — ns RC oscillator 250 10,000 ns XT oscillator 40 62.5 160 250 30 250 250 250 250 200 ns ns ns ns μs HS oscillator (Industrial) HS oscillator (Extended) HS + PLL oscillator, PIC18FX620/X720 (Industrial) HS + PLL oscillator, PIC18FX620/X720 (Extended) LP Oscillator mode Note 1: Instruction cycle period (TCY) equals four times the input oscillator time base period for all configurations except PLL. All specified values are based on characterization data for that particular oscillator type under standard operating conditions with the device executing code. Exceeding these specified limits may result in an unstable oscillator operation and/or higher than expected current consumption. All devices are tested to operate at “min.” values with an external clock applied to the OSC1/CLKI pin. When an external clock input is used, the “max.” cycle time limit is “DC” (no clock) for all devices. |
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