M058SFAN Datasheet, PDF (25/72 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller

NuMicro M058S Series Datasheet
6.2.3 System Power Architecture
In this device, the power architecture is divided into three segments.
 Analog power from AV_DD and AV_SS provides the power for analog components
operation. AV_DD must be equal to V_DD to avoid leakage current.
 Digital power from VDD and VSS supplies the power to the I/O pins and internal
regulator which provides a fixed 1.8 V power for digital operation.
The output of internal voltage regulator, LDO_CAP, requires an external capacitor which should
be located close to the corresponding pin. Analog power (AVDD) should be the same voltage level
as the digital power (VDD). The following figure shows the power distribution of the M058S series.
AV_DD
AV_SS
12-bit
SAR-ADC
Analog Comparator
Low
Voltage
Reset
Brown
Out
Detector
Temperature
Sensor
Flash
Digital Logic
Internal
22.1184 MHz and
10 kHz Oscillator
1.8V
POR18
PLL
5V to 1.8V
LDO
I/O cell
POR50
LDO_CAP
1uF
GPIO Pins
PVSS
M058 Series Power Distribution
V_DD V_SS
Figure 6.2-1 NuMicro^™ M058S Power Architecture Diagram
Nov. 27, 2014
Page 25 of 72
Rev.1.03