Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller TLLGA 48 (5.5x5.5) 32-Bit 50 MHz I/O number 36

42

32142D–06/2013

ATUC64/128/256L3/4U

6.1.3.2 1.8V Single Supply Mode

In 1.8V single supply mode the internal regulator is not used, and VDDIO and VDDCORE are

powered by a single 1.8V supply as shown in Figure 6-3. All I/O lines will be powered by the

same power (VDDIN = VDDIO = VDDCORE).

Figure 6-3. 1.8V Single Supply Mode

VDDIO

VDDCORE

+

-

1.62-1.98V

VDDANA

ADC

VDDIN

GND

GNDANA

CPU,

Peripherals,

Memories,

SCIF, BOD,

RCSYS,

DFLL, PLL

OSC32K,

RC32K,

POR33,

SM33

I/O Pins

I/O Pins

OSC32K_2,

AST, Wake,

Regulator

control