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6P8B Datasheet(PDF) 7 Page - NEC

Part # 6P8B
Description  MOS INTEGRATED CIRCUIT 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

6P8B Datasheet(HTML) 7 Page - NEC

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µPD6P8, 6P8A, 6P8B
Data Sheet U17848EJ3V0DS
8.
POC CIRCUIT ............................................................................................................................ 38
8.1
Functions of POC Circuit .................................................................................................................. 39
8.2
Oscillation Check at Low Supply Voltage ....................................................................................... 39
9.
SYSTEM CLOCK OSCILLATOR (
µPD6P8, 6P8A) .................................................................. 40
10. INSTRUCTION SET ................................................................................................................... 41
10.1 Machine Language Output by Assembler ....................................................................................... 41
10.2 Circuit Symbol Description .............................................................................................................. 42
10.3 Mnemonic to/from Machine Language (Assembler Output) Contrast Table ...............................
43
10.4 Accumulator Manipulation Instructions .......................................................................................... 47
10.5 I/O Instructions .................................................................................................................................. 50
10.6 Data Transfer Instructions ................................................................................................................ 51
10.7 Branch Instructions .......................................................................................................................... 53
10.8 Subroutine Instructions .................................................................................................................... 54
10.9 Timer Operation Instructions ........................................................................................................... 55
10.10 Others ................................................................................................................................................. 58
11. ASSEMBLER RESERVED WORDS ........................................................................................ 60
11.1 Mask Option Directives ..................................................................................................................... 60
11.1.1 OPTION and ENDOP quasi-directives .................................................................................... 60
11.1.2 Mask option definition quasi-directives ...................................................................................60
12. WRITING AND VERIFYING ONE-TIME PROM (PROGRAM MEMORY) (
µPD6P8) ................. 61
12.1 Operating Mode When Writing/Verifying Program Memory ..........................................................
61
12.2 Program Memory Writing Procedure ............................................................................................... 62
12.3 Program Memory Reading Procedure ............................................................................................. 63
13. WRITING AND VERIFICATION OF ONE-TIME PROM (PROGRAM MEMORY) (
µPD6P8A, 6P8B) ......... 64
13.1 Initialization ........................................................................................................................................ 64
13.2 Serial Communication Format ......................................................................................................... 65
13.3 Writing of Program Memory ............................................................................................................. 66
13.4 Reading of Program Memory ........................................................................................................... 66
14. ELECTRICAL SPECIFICATIONS (
µPD6P8) ............................................................................. 67
15. ELECTRICAL SPECIFICATIONS (
µPD6P8A) .......................................................................... 74
16. ELECTRICAL SPECIFICATIONS (
µPD6P8B) (TARGET) ........................................................ 79
17. CHARACTERISTIC CURVES (REFERENCE VALUES) (
µPD6P8) ....................................... 84
18. APPLICATION CIRCUIT EXAMPLE .......................................................................................... 85
19. PACKAGE DRAWING ................................................................................................................ 88
20. RECOMMENDED SOLDERING CONDITIONS .......................................................................... 89
APPENDIX A. DEVELOPMENT TOOLS ......................................................................................... 90
APPENDIX B. EXAMPLE OF REMOTE CONTROL TRANSMISSION FORMAT (In the case
of NEC transmission format in command one-shot transmission mode) ........ 91


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