4524 datasheet(7/310 Pages) RENESAS

7 / 310 page

Rev.2.00

Aug, 06 2004

4524 Group

REJ09B0107-0200Z

iii

CHAPTER 3 APPENDIX

3.1 Electrical characteristics ........................................................................................................ 2

3.1.1 Absolute maximum ratings ............................................................................................... 2

3.1.2 Recommended operating conditions ............................................................................... 3

3.1.3 Electrical characteristics ................................................................................................... 5

3.1.4 A/D converter recommended operating conditions ....................................................... 7

3.1.5 Voltage drop detection circuit characteristics ................................................................ 8

3.1.6 Basic timing diagram ........................................................................................................ 8

3.2 Typical characteristics ............................................................................................................ 9

3.2.1 VDD–IDD characteristics ...................................................................................................... 9

3.2.2 Frequency characteristics ............................................................................................... 15

3.2.3 Port typical characteristics (VDD = 5.0 V) .................................................................... 18

3.2.4 Port typical characteristics (VDD = 3.0 V) .................................................................... 21

3.2.5 Input threshold characteristics ....................................................................................... 24

3.2.6 Pull-up resistor: VDD–RPU characteristics example .................................................... 27

3.2.7 Internal resistor for LCD power: Ta–RVLC ................................................................. 28

3.2.8 A/D converter typical characteristics ............................................................................ 29

3.2.9 Analog input current characteristics example ............................................................. 32

3.2.10 A/D converter operation current (VDD–IADD) characteristics ...................................... 36

3.2.11 Voltage drop detection circuit characteristics ........................................................... 36

3.3 List of precautions ................................................................................................................. 38

3.3.1 Program counter .............................................................................................................. 38

3.3.2 Stack registers (SKs) ...................................................................................................... 38

3.3.3 Notes on I/O port ............................................................................................................ 38

3.3.4 Notes on interrupt ........................................................................................................... 41

3.3.5 Notes on timer ................................................................................................................. 42

3.3.6 Notes on A/D conversion ............................................................................................... 43

3.3.7 Notes on serial I/O ......................................................................................................... 44

3.3.8 Notes on LCD function ................................................................................................... 45

3.3.9 Notes on reset ................................................................................................................. 45

3.3.10 Notes on voltage drop detection circuit ..................................................................... 45

3.3.11 Notes on power down .................................................................................................. 46

3.3.12 Notes on oscillation circuit ........................................................................................... 47

3.3.13 Electric characteristic differences between Mask ROM and One Time PROM version MCU ... 47

3.3.14 Notes on Power Source Voltage ................................................................................ 47

3.4 Notes on noise ........................................................................................................................ 48

3.4.1 Shortest wiring length ..................................................................................................... 48

3.4.2 Connection of bypass capacitor across VSS line and VDD line .................................. 50

3.4.3 wiring to analog input pins ............................................................................................ 51

3.4.4 Oscillator concerns .......................................................................................................... 51

3.4.5 setup for I/O ports .......................................................................................................... 52

3.4.6 providing of watchdog timer function by software ...................................................... 52

3.5 Package outline ...................................................................................................................... 54

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