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NUC230SD2AE Datasheet(Fiches technique) 48 Page - Nuvoton Technology Corporation

Numéro de pièce NUC230SD2AE
Description  NuMicro
Télécharger  97 Pages
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Fabricant  NUVOTON [Nuvoton Technology Corporation]
Site Internet  http://www.nuvoton.com
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NuMicro NUC230/240 Datasheet
Dec. 30, 2014
Page 48 of 97
Revision 1.01
6.2.3 System Power Distribution
In this chip, the power distribution is divided into three segments.
Analog power from AVDD and AVSS provides the power for analog components
operation.
Digital power from VDD and VSS supplies the power to the internal regulator which
provides a fixed 1.8 V power for digital operation and I/O pins.
USB transceiver power from VBUS offers the power for operating the USB transceiver.
Battery power from VBAT supplies the RTC and external 32.768 kHz crystal.
The outputs of internal voltage regulators, LDO and VDD33, require an external capacitor which
should be located close to the corresponding pin. Analog power (AVDD) should be the same
voltage level with the digital power (VDD). 錯誤! 找不到參照來源。Figure 6-2 shows the NuMicro
NUC230 power distribution, and Figure 6-3 shows the NuMicro
 NUC240 power distribution.
12-bit
SAR-ADC
Brown-
out
Detector
Low
Voltage
Reset
Analog
Comparator
Temperature
Seneor
FLASH
Digital Logic
Internal
22.1184 MHz & 10 kHz
Oscillator
AVDD
AVSS
LDO_CAP
1uF
GPIO
NUC230 Power Distribution
LDO
PLL
POR50
POR18
External
32.768 kHz
Crystal
IO cell
RTC
ULDO
1.8V
1.8V
Figure 6-2 NuMicro
 NUC230 Power Distribution Diagram




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