UPD17P236 Datasheet, PDF (7/32 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER

CONTENTS
µPD17P236
1. DIFFERENCES BETWEEN µPD17236 AND µPD17P236 ........................................................... 8
2. PIN FUNCTIONS ........................................................................................................................... 9
2.1 Normal Operation Mode .................................................................................................................... 9
2.2 PROM Programming Mode ............................................................................................................... 10
2.3 Input/Output Circuits ......................................................................................................................... 11
2.4 Processing of Unused Pins .............................................................................................................. 12
2.5 Notes on Using the RESET and INT Pins ........................................................................................ 12
3. WRITING AND VERIFYING ONE-TIME PROM (PROGRAM MEMORY) .................................... 13
3.1 Operating Mode When Writing/Verifying Program Memory .......................................................... 13
3.2 Program Memory Writing Procedure ............................................................................................... 14
3.3 Program Memory Reading Procedure ............................................................................................. 15
4. ELECTRICAL SPECIFICATIONS ................................................................................................. 16
5. PACKAGE DRAWING .................................................................................................................. 23
6. RECOMMENDED SOLDERING CONDITIONS ............................................................................ 25
APPENDIX. DEVELOPMENT TOOLS ................................................................................................ 27
Data Sheet U14776EJ1V0DS00
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