4502 datasheet(7/214 Pages) RENESAS

7 / 214 page

4502 Group

iii

Rev.2.01

Feb 02, 2005

REJ09B0193-0201

CHAPTER 3 APPENDIX

3.1 Electrical characteristics ..................................................................................................... 3-2

3.1.1 Absolute maximum ratings ............................................................................................ 3-2

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

3.1.3 Electrical characteristics ................................................................................................ 3-5

3.1.4 A/D converter recommended operating conditions .................................................... 3-6

3.1.5 Voltage drop detection circuit characteristics ............................................................. 3-7

3.1.6 Basic timing diagram ..................................................................................................... 3-7

3.2 Typical characteristics ......................................................................................................... 3-8

3.2.1 VDD–IDD characteristics ................................................................................................... 3-8

3.2.2 Frequency characteristics ............................................................................................ 3-12

3.2.3 VOL–IOL characteristics (VDD = 5 V) ............................................................................ 3-14

3.2.4 Input threshold (VIH–VIL) characteristics (Ta = 25 °C) ............................................ 3-17

3.2.5 VDD–RPU characteristics (Ports P0–P2, D2/C, D3/K, RESET) .................................. 3-20

3.2.6 Analog input current characteristics pins VAIN–IAIN ................................................... 3-21

3.2.7 A/D converter operation current (VDD–AIDD) characteristics (Ta = 25 °C) ............ 3-23

3.2.8 Voltage drop detection circuit characteristics ........................................................... 3-23

3.2.9 A/D converter typical characteristics ......................................................................... 3-25

3.3 List of precautions .............................................................................................................. 3-27

3.3.1 Program counter ........................................................................................................... 3-27

3.3.2 Stack registers (SKs) and stack pointer (SP) .......................................................... 3-27

3.3.3 Notes on I/O port ......................................................................................................... 3-27

3.3.4 Notes on interrupt ........................................................................................................ 3-29

3.3.5 Notes on timer .............................................................................................................. 3-31

3.3.6 Notes on A/D conversion ............................................................................................ 3-32

3.3.7 Notes on reset .............................................................................................................. 3-33

3.3.8 Notes on RAM back-up ............................................................................................... 3-34

3.3.9 Notes on oscillation control ........................................................................................ 3-35

3.3.10 Electric Characteristic Differences Between Mask ROM and One Time PROM Version MCU ... 3-35

3.3.11 Notes on Power Source Voltage ............................................................................. 3-35

3.4 Notes on noise ..................................................................................................................... 3-36

3.4.1 Shortest wiring length .................................................................................................. 3-36

3.4.2 Connection of bypass capacitor across VSS line and VDD line ............................... 3-38

3.4.3 wiring to analog input pins ......................................................................................... 3-39

3.4.4 Oscillator concerns ....................................................................................................... 3-39

3.4.5 setup for I/O ports ....................................................................................................... 3-40

3.4.6 providing of watchdog timer function by software ................................................... 3-40

3.5 Package outline ................................................................................................................... 3-42

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