MAX II Architecture
Figure 2–17. EPM570, EPM1270, and EPM2210 UFM Block LAB Row Interface
CFM Block
RTP_BUSY
BUSY
OSC
DRDout
DRDin
LAB
DRDCLK
DRDSHFT
ARDin
PROGRAM
ERASE
OSC_ENA
ARCLK
ARSHFT
LAB
UFM Block
LAB
The MAX II architecture supports the MultiVolt core feature, which
allows MAX II devices to support multiple VCC levels on the VCCINT
MultiVolt Core
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.
Altera Corporation
March 2008
2–27
MAX II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
