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EPM570GF100A Datasheet(PDF) 30 Page - Altera Corporation |
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EPM570GF100A Datasheet(HTML) 30 Page - Altera Corporation |
30 / 86 page 2–22 Chapter 2: MAX II Architecture MultiVolt Core MAX II Device Handbook © October 2008 Altera Corporation MultiVolt Core The MAX II architecture supports the MultiVolt core feature, which allows MAX II devices to support multiple VCC levels on the VCCINT supply. An internal linear voltage regulator provides the necessary 1.8-V internal voltage supply to the device. The voltage regulator supports 3.3-V or 2.5-V supplies on its inputs to supply the 1.8-V internal voltage to the device, as shown in Figure 2–18. The voltage regulator is not guaranteed for voltages that are between the maximum recommended 2.5-V operating voltage and the minimum recommended 3.3-V operating voltage. The MAX IIG and MAX IIZ devices use external 1.8-V supply. The 1.8-V VCC external supply powers the device core directly. Figure 2–17. EPM570, EPM1270, and EPM2210 UFM Block LAB Row Interface RTP_BUSY BUSY OSC DRDout DRDin PROGRAM ERASE OSC_ENA ARCLK ARSHFT DRDCLK DRDSHFT ARDin UFM Block CFM Block LAB LAB LAB Figure 2–18. MultiVolt Core Feature in MAX II Devices MAX II Device 3.3-V or 2.5-V on VCCINT Pins Voltage Regulator 1.8-V Core Voltage MAX IIG or MAX IIZ Device 1.8-V on VCCINT Pins 1.8-V Core Voltage |
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