4501_M Datasheet, PDF (7/212 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4501 Group
Table of contents
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) ............................................ 3-16
3.2.5 VDD–RPU characteristics (Ports P0–P2, D2/C, D3/K, RESET) .................................. 3-19
3.2.6 Analog input current characteristics pins VAIN–IAIN (VDD = 5 V, high-speed mode, Ta = 25 °C) . 3-20
3.2.7 A/D converter operation current (VDD–AIDD) characteristics (Ta = 25 °C) ............ 3-22
3.2.8 Voltage drop detection circuit characteristics ........................................................... 3-22
3.2.9 A/D converter typical characteristics ......................................................................... 3-24
3.3 List of precautions .............................................................................................................. 3-26
3.3.1 Program counter ........................................................................................................... 3-26
3.3.2 Stack registers (SKs) ................................................................................................... 3-26
3.3.3 Notes on I/O port ......................................................................................................... 3-26
3.3.4 Notes on interrupt ........................................................................................................ 3-28
3.3.5 Notes on timer .............................................................................................................. 3-30
3.3.6 Notes on A/D conversion ............................................................................................ 3-31
3.3.7 Notes on reset .............................................................................................................. 3-32
3.3.8 Notes on RAM back-up ............................................................................................... 3-33
3.3.9 Notes on oscillation control ........................................................................................ 3-34
3.3.10 Electric Characteristic Differences Between Mask ROM and One Time PROM Version MCU ... 3-34
3.3.11 Notes on Power Source Voltage ............................................................................. 3-34
3.4 Notes on noise ..................................................................................................................... 3-35
3.4.1 Shortest wiring length .................................................................................................. 3-35
3.4.2 Connection of bypass capacitor across VSS line and VDD line ............................... 3-37
3.4.3 wiring to analog input pins ......................................................................................... 3-38
3.4.4 Oscillator concerns ....................................................................................................... 3-38
3.4.5 setup for I/O ports ....................................................................................................... 3-39
3.4.6 providing of watchdog timer function by software ................................................... 3-39
3.5 Package outline ................................................................................................................... 3-41
Rev.2.01 Feb 07, 2005
iii
REJ09B0192-0201