Mini55
ARM
®
Cortex
®
-M0
32-bit Microcontroller
NuMicro Family
Mini55 Series
Datasheet
®
MINI55 SERIES DATASHEET
The information described in this document is the exclusive intellectual property of
Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton.
Nuvoton is providing this document only for reference purposes of NuMicro microcontroller based
system design. Nuvoton assumes no responsibility for errors or omissions.
All data and specifications are subject to change without notice.
For additional information or questions, please contact: Nuvoton Technology Corporation.
www.nuvoton.com
Apr 18, 2017
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Mini55
Table of Contents
1
2
3
4
4.1
4.2
4.3
4.3.1
4.3.2
GENERAL DESCRIPTION
....................................................................... 7
FEATURES
......................................................................................... 8
ABBREVIATIONS
................................................................................ 11
PARTS INFORMATION LIST AND PIN CONFIGURATION
.............................. 12
NuMicro
®
Mini55 Series Naming Rule
.............................................................12
NuMicro
®
Mini55 Series Product Selection Guide
...............................................13
PIN CONFIGURATION
..............................................................................14
LQFP 48-pin
................................................................................................... 14
QFN 33-pin
.................................................................................................... 15
4.4
Pin Description
........................................................................................16
5
5.1
BLOCK DIAGRAM
............................................................................... 20
NuMicro
®
Mini55 Block Diagram
...................................................................20
6
6.1
Functional Description
........................................................................... 21
ARM
®
Cortex
®
-M0 Core
..............................................................................21
Overview
....................................................................................................... 21
Features
........................................................................................................ 21
6.1.1
6.1.2
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
MINI55 SERIES DATASHEET
System Manager
......................................................................................23
Overview
....................................................................................................... 23
System Reset..................................................................................................
23
Power Modes and Wake-up Sources
...................................................................... 29
System Power Architecture
................................................................................. 31
System Memory Mapping
................................................................................... 32
Memory Organization
........................................................................................ 32
System Timer (SysTick)
..................................................................................... 34
Nested Vectored Interrupt Controller (NVIC)
............................................................. 35
System Control Registers (SCB)
........................................................................... 38
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
Clock Controller
.......................................................................................39
Overview
....................................................................................................... 39
Auto-trim
........................................................................................................ 41
System Clock and SysTick Clock
.......................................................................... 41
Peripherals Clock Source Selection
....................................................................... 42
Power-down Mode Clock
.................................................................................... 43
Frequency Divider Output
................................................................................... 43
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6.4
6.4.1
6.4.2
Flash Memory Controller (FMC)
....................................................................45
Overview
....................................................................................................... 45
Features
........................................................................................................ 45
6.5
6.5.1
6.5.2
General Purpose I/O (GPIO)
........................................................................46
Overview
....................................................................................................... 46
Features
........................................................................................................ 46
6.6
6.6.1
6.6.2
Timer Controller (TMR)
..............................................................................47
Overview
....................................................................................................... 47
Features
........................................................................................................ 47
6.7
6.7.1
6.7.2
Enhanced PWM Generator
.........................................................................48
Overview
....................................................................................................... 48
Features
........................................................................................................ 48
6.8
6.8.1
6.8.2
Watchdog Timer (WDT)..............................................................................
51
Overview
....................................................................................................... 51
Features
........................................................................................................ 51
6.9
6.9.1
6.9.2
UART Controller (UART)
............................................................................52
Overview
....................................................................................................... 52
Features
........................................................................................................ 52
6.10
6.10.1
6.10.2
I
2
C Serial Interface Controller (I
2
C)
................................................................53
Overview
....................................................................................................... 53
Features
........................................................................................................ 53
MINI55 SERIES DATASHEET
6.11
6.11.1
6.11.2
Serial Peripheral Interface (SPI)
....................................................................54
Overview
....................................................................................................... 54
Features
........................................................................................................ 54
6.12
6.12.1
6.12.2
Analog-to-Digital Converter (ADC)
.................................................................55
Overview
....................................................................................................... 55
Features
........................................................................................................ 55
6.13
6.13.1
6.13.2
Analog Comparator (ACMP)
........................................................................56
Overview
....................................................................................................... 56
Features
........................................................................................................ 56
6.14
6.14.1
6.14.2
Hardware Divider (HDIV)
............................................................................57
Overview
....................................................................................................... 57
Features
........................................................................................................ 57
7
8
APPLICATION CIRCUIT
........................................................................ 58
ELECTRICAL CHARACTERISTICS
.......................................................... 59
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Mini55
8.1
8.2
8.3
8.3.1
8.3.2
8.3.3
8.3.4
8.3.5
Absolute Maximum Ratings
.........................................................................59
DC Electrical Characteristics
........................................................................60
AC Electrical Characteristics
........................................................................65
External Input Clock
.......................................................................................... 65
External 4~24 MHz High Speed Crystal (HXT)
.......................................................... 65
Typical Crystal Application Circuits
........................................................................ 65
48 MHz Internal High Speed RC Oscillator (HIRC)
..................................................... 66
10 kHz Internal Low Speed RC Oscillator (LIRC)
....................................................... 66
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
Analog Characteristics
...............................................................................67
10-bit SARADC................................................................................................
67
LDO & Power Management
................................................................................. 68
Brown-out Detector
........................................................................................... 68
Power-on Reset
............................................................................................... 69
Comparator
.................................................................................................... 69
8.5
Flash DC Electrical Characteristics
................................................................70
9
9.1
9.3
PACKAGE DIMENSIONS
...................................................................... 71
48-pin LQFP (7 mm x 7 mm)
........................................................................71
33-pin QFN (4 mm x 4 mm)
.........................................................................72
10
MINI55 SERIES DATASHEET
REVISION HISTORY
............................................................................ 73
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Mini55
List of Figures
Figure 4.1-1 NuMicro Mini55 Series Selection Code ................................................................... 12
Figure 4.3-1 NuMicro Mini55 Series LQFP 48-pin Diagram......................................................... 14
Figure 4.3-2 NuMicro Mini55 Series QFN 33-pin Diagram .......................................................... 15
Figure 5.1-1 NuMicro Mini55 Series Block Diagram .................................................................... 20
Figure 6.1-1 Functional Block Diagram .......................................................................................... 21
Figure 6.2-1 System Rese Resources ........................................................................................... 24
Figure 6.2-2 nRESET Reset Waveform ......................................................................................... 26
Figure 6.2-3 Power-on Reset (POR) Waveform ............................................................................ 26
Figure 6.2-4 Low Voltage Reset (LVR) Waveform ......................................................................... 27
Figure 6.2-5 Brown-out Detector (BOD) Waveform ....................................................................... 28
Figure 6.2-6 Power Mode State Machine ...................................................................................... 29
Figure 6.2-7 NuMicro Mini55 Series Power Architecture Diagram .............................................. 31
Figure 6.3-1 Clock Generator Block Diagram ................................................................................ 39
Figure 6.3-2 Clock Generator Global View Diagram ...................................................................... 40
Figure 6.3-3 System Clock Block Diagram .................................................................................... 41
Figure 6.3-4 SysTick Clock Control Block Diagram ....................................................................... 42
Figure 6.3-5 Peripherals Bus Clock Source Selection for PCLK ................................................... 42
Figure 6.3-6 Clock Source of Frequency Divider ........................................................................... 44
Figure 6.3-7 Block Diagram of Frequency Divider ......................................................................... 44
Figure 6.7-1 Application Circuit Diagram ....................................................................................... 50
Figure 8-1 Mini55 Typical Crystal Application Circuit ..................................................................... 66
MINI55 SERIES DATASHEET
®
®
®
®
®
Apr 18, 2017
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