Revision history .............................................................................................................................................................. 2
1 Overview ................................................................................................................................................................... 3
1.1. Description .......................................................................................................................................................... 3
1.2 Features .............................................................................................................................................................. 4
1.3 Development tools .............................................................................................................................................. 5
1.3.1 Compiler ...................................................................................................................................................... 5
1.3.2 OCD(On-chip debugger) emulator and debugger ....................................................................................... 5
1.3.3 Programmer ................................................................................................................................................. 6
1.4 MTP programming .............................................................................................................................................. 8
1.4.1 Overview ...................................................................................................................................................... 8
1.4.2 On-Board programming ............................................................................................................................... 8
1.4.2.1 Circuit Design Guide ................................................................................................................................................ 8
2 Block diagram ........................................................................................................................................................ 10
3 Pin assignment ...................................................................................................................................................... 11
4 Package Diagram ................................................................................................................................................... 15
5 Pin Description ....................................................................................................................................................... 20
6 Port Structures ....................................................................................................................................................... 25
6.1 General Purpose I/O Port ................................................................................................................................. 25
6.2 External Interrupt I/O Port ................................................................................................................................. 26
7 Electrical Characteristics ...................................................................................................................................... 27
7.1 Absolute Maximum Ratings .............................................................................................................................. 27
7.2 Recommended Operating Conditions .............................................................................................................. 27
7.3 A/D Converter Characteristics .......................................................................................................................... 28
7.4 Power-On Reset Characteristics ...................................................................................................................... 28
7.5 Low Voltage Reset and Low Voltage Indicator Characteristics ........................................................................ 29
7.6 High Internal RC Oscillator Characteristics ...................................................................................................... 29
7.7 Internal Watch-Dog Timer RC Oscillator Characteristics.................................................................................. 30
7.8 LCD Voltage Characteristics ............................................................................................................................. 30
7.9 DC Characteristics ............................................................................................................................................ 31
7.10 AC Characteristics ............................................................................................................................................ 32
7.11 SPI0/1/2 Characteristics ................................................................................................................................... 33
7.12 UART0/1 Characteristics .................................................................................................................................. 34
7.13 I2C0/1 Characteristics ...................................................................................................................................... 35
7.14 Data Retention Voltage in Stop Mode .............................................................................................................. 36
7.15 Internal Flash Rom Characteristics .................................................................................................................. 37
7.16 Input/Output Capacitance ................................................................................................................................. 37
7.17 Main Clock Oscillator Characteristics ............................................................................................................... 38
7.18 Sub Clock Oscillator Characteristics ................................................................................................................ 39
7.19 Main Oscillation Stabilization Characteristics ................................................................................................... 40
7.20 Sub Oscillation Characteristics ......................................................................................................................... 40
7.21 Operating Voltage Range ................................................................................................................................. 41
7.22 Recommended Circuit and Layout ................................................................................................................... 42
7.23 Recommended Circuit and Layout with SMPS Power ..................................................................................... 43
7.24 Typical Characteristics ...................................................................................................................................... 44
8 Memory ................................................................................................................................................................... 47
8.1 Program Memory .............................................................................................................................................. 47
8.2 Data Memory .................................................................................................................................................... 49
8.3 External Data Memory ...................................................................................................................................... 51
8.4 SFR Map ........................................................................................................................................................... 52
8.4.1 SFR Map Summary ................................................................................................................................... 52
8.4.2 SFR Map ................................................................................................................................................... 54
8.4.3 SFR Map ................................................................................................................................................... 59