UPD61P34BGS NEC, UPD61P34BGS Datasheet - Page 5

• Manufacturer Part Number: UPD61P34BGS
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

1. PIN FUNCTIONS .........................................................................................................................
2. DIFFERENCES AMONG PD6133, 6134, AND PD61P34B .................................................... 10
3. WRITING AND VERIFYING ONE-TIME PROM (PROGRAM MEMORY) .................................. 12
4. ELECTRICAL SPECIFICATIONS ............................................................................................... 15
5. CHARACTERISTIC CURVE (REFERENCE VALUES) .............................................................. 21
6. APPLIED CIRCUIT EXAMPLE ................................................................................................... 23
7. PACKAGE DRAWINGS .............................................................................................................. 24
8. RECOMMENDED SOLDERING CONDITIONS .......................................................................... 26
APPENDIX A. DEVELOPMENT TOOLS ........................................................................................ 27
APPENDIX B. EXAMPLE OF REMOTE-CONTROL TRANSMISSION FORMAT .......................... 28
1.1
1.2
1.3
1.4
1.5
2.1
3.1
3.2
3.3
Normal Operating Mode ....................................................................................................................
PROM Programming Mode ...............................................................................................................
INPUT/OUTPUT Circuits of Pins ......................................................................................................
Dealing with Unused Pins ................................................................................................................
Notes on Using KI Pin at Reset ........................................................................................................
Program Memory (One-time PROM) ................................................................................................ 11
Operating Mode When Writing/Verifying Program Memory .......................................................... 12
Program Memory Writing Procedure ............................................................................................... 13
Program Memory Reading Procedure ............................................................................................. 14
TABLE OF CONTENTS
Data Sheet U13595EJ2V0DS00
PD61P34B
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6
7
8
9
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