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PIC24FJ64GA Datasheet(PDF) 2 Page - Microchip Technology |
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PIC24FJ64GA Datasheet(HTML) 2 Page - Microchip Technology |
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2 / 52 page  PIC24FJXXXGA0XX DS39768D-page 2 © 2008 Microchip Technology Inc. The regulator provides power to the core from the other VDD pins. A low-ESR capacitor (such as tantalum) must be connected to the VDDCORE pin (Figure 2-2 and Figure 2-3). This helps to maintain the stability of the regulator. The specifications for core voltage and capac- itance are listed in Section 7.0 “AC/DC Characteristics and Timing Requirements”. FIGURE 2-2: CONNECTIONS FOR THE ON-CHIP REGULATOR (64/80/100-PIN DEVICES) FIGURE 2-3: CONNECTIONS FOR THE ON-CHIP REGULATOR (28/44-PIN DEVICES) VDD ENVREG VDDCORE/VCAP VSS PIC24FJXXXGA0XX CEFC 3.3V Regulator Enabled (ENVREG tied to VDD): (10 μF typ) Note 1: These are typical operating voltages. Refer to Section 7.0 “AC/DC Characteristics and Timing Requirements” for the full operating ranges of VDD and VDDCORE. VDD ENVREG VDDCORE/VCAP VSS PIC24FJXXXGA0XX 3.3V(1) 2.5V(1) Regulator Disabled (ENVREG tied to ground): VDD ENVREG VDDCORE/VCAP VSS PIC24FJXXXGA0XX 2.5V(1) Regulator Disabled (VDD tied to VDDCORE): VDD DISVREG VDDCORE/VCAP VSS PIC24FJXXXGA0XX 3.3V(1) 2.5V(1) Regulator Disabled (DISVREG tied to VDD): VDD DISVREG VDDCORE/VCAP VSS PIC24FJXXXGA0XX 2.5V(1) Regulator Disabled (VDD tied to VDDCORE): VDD DISVREG VDDCORE/VCAP VSS PIC24FJXXXGA0XX CEFC 3.3V (10 μF typ) Regulator Enabled (DISVREG tied to VSS): Note 1: These are typical operating voltages. Refer to Section 7.0 “AC/DC Characteristics and Timing Requirements” for the full operating ranges of VDD and VDDCORE. |
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