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PDF UPD62AMC Data sheet ( Hoja de datos )
| Número de pieza | UPD62AMC | |
| Descripción | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD62A
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR INFRARED REMOTE CONTROL TRANSMISSION
DESCRIPTION
Due to its low-voltage 2.0 V operation, on-chip carrier generator for infrared remote control transmission, standby
release function through key entry, and programmable timer, the µPD62A is ideal for infrared remote control
transmitters.
For the µPD62A, the one-time PROM product µPD6P4B has been made available for program evaluation or
small-scale production.
FEATURES
• Program memory (ROM): 512 × 10 bits
• Data memory (RAM): 32 × 4 bits
• On-chip carrier generator for infrared remote control
• 9-bit programmable timer:
1 channel
• Command execution time:
8 µs (when operating at fX = 8 MHz: ceramic oscillation)
• Stack levels:
1 (Stack RAM is also available for data memory RF.)
• I/O pins (KI/O):
8
• Input pins (KI):
4
• Sense input pin (S0)
• S1/LED pin (I/O): When in output mode, this is the remote control transmission display pin.
• Power supply voltage:
VDD = 2.0 to 3.6 V
• Operating ambient temperature: TA = –40 to +85˚C
• Oscillator frequency:
fX = 2.4 to 8 MHz
• POC (Power On Clear) circuit (Mask option)
APPLICATION
Infrared remote control transmitter (for AV and household electrical appliances)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. U14474EJ1V0DS00 (1st edition)
Date Published November 1999 N CP(K)
Printed in Japan
©
1999
1 page  
µPD62A
9. INSTRUCTION SET ...................................................................................................................... 30
9.1 Machine Language Output by Assembler ....................................................................................... 30
9.2 Circuit Symbol Description .............................................................................................................. 31
9.3 Mnemonic to/from Machine Language (Assembler Output) Contrast Table ............................... 32
9.4 Accumulator Operation Instructions ............................................................................................... 36
9.5 Input/Output Instructions ................................................................................................................. 39
9.6 Data Transfer Instruction .................................................................................................................. 40
9.7 Branch Instructions .......................................................................................................................... 42
9.8 Subroutine Instructions .................................................................................................................... 43
9.9 Timer Operation Instructions ........................................................................................................... 44
9.10 Others ................................................................................................................................................. 45
10. ASSEMBLER RESERVED WORDS .......................................................................................... 47
10.1 Mask Option Directives .................................................................................................................... 47
10.1.1 OPTION and ENDOP directives ............................................................................................. 47
10.1.2 Mask option definition directive ............................................................................................... 47
11. ELECTRICAL SPECIFICATIONS .............................................................................................. 48
12. CHARACTERISTIC CURVES (REFERENCE VALUES) ........................................................... 52
13. APPLICATION CIRCUIT EXAMPLE .......................................................................................... 53
14. PACKAGE DRAWINGS ............................................................................................................. 54
15. RECOMMENDED SOLDERING CONDITIONS ......................................................................... 55
APPENDIX A. DEVELOPMENT TOOLS ......................................................................................... 56
APPENDIX B. FUNCTIONAL COMPARISON BETWEEN µPD62A AND OTHER SUBSERIES ... 57
APPENDIX C. EXAMPLE OF REMOTE-CONTROL TRANSMISSION FORMAT .......................... 58
Data Sheet U14474EJ1V0DS00
5
5 Page 
µPD62A
Figure 2-4. Data Memory Configuration
R1n (high-order 4 bits) R0n (low-order 4 bits)
R0
R10 R00
R1
R11 R01
R2
R12 R02
R3
R13 R03
R4
R14 R04
R5
R15 R05
R6
R16 R06
R7
R17 R07
R8
R18 R08
R9
R19 R09
RA
R1A R0A
RB
R1B R0B
RC
R1C
R0C
RD
R1D
R0D
RE
R1E R0E
RF
R1F R0F
→DP (refer to 2.6 Data Pointer (DP))
→ASR (refer to 2.3 Address Stack Register (ASR (RF)))
2.6 Data Pointer (DP): 10 Bits
The ROM data table can be referenced by setting the ROM address in the data pointer to call the ROM contents.
The low-order 8 bits of the ROM address are specified by R0 of the data memory; and the high-order 2 bits by
bits 4 and 5 of the P3 register (CR0).
When reset, the pointer contents become “000H”.
P3 register
b5 b4
P3 DP9 DP8
Figure 2-5. Data Pointer Configuration
DP7
R10
DP6 DP5
DP4
DP3
R00
DP2 DP1
DP0 R0
2.7 Accumulator (A): 4 Bits
The accumulator, which is a register consisting of 4 bits, plays a leading role in performing various operations.
When reset, the accumulator contents become undefined.
Figure 2-6. Accumulator Configuration
A3 A2 A1 A0 A
Data Sheet U14474EJ1V0DS00
11
11 Page | ||
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