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PDF UPD61P34BGS Data sheet ( Hoja de datos )

Número de pieza UPD61P34BGS
Descripción 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD61P34B
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR INFRARED REMOTE CONTROL TRANSMISSION
DESCRIPTION
The µPD61P34B is a microcontroller for infrared remote control transmitters which is provided with a one-time
PROM as the program memory.
Because users can write programs for the µPD61P34B, it is ideal for program evaluation and small-scale
production of the application systems using the µPD6133 or 6134.
When reading this document, also refer to the µPD6133, 6134 Data Sheet (U10454E).
FEATURES
• Program memory (one-time PROM) : 1002 × 10 bits
• Data memory (RAM)
: 32 × 4 bits
• Built-in carrier generation circuit for infrared remote control
• 9-bit programmable timer
: 1 channel
• Command execution time
: 16 µs (when operating at fX = 500 kHz: ceramic oscillation)
• Stack level
: 1 level (Stack RAM is for data memory RF as well.)
• I/O pins (KI/O)
: 8 units
• Input pins (KI)
: 4 units
• Sense input pin (S0)
: 1 unit
• S1/LED pin (I/O)
: 1 unit (When in output mode, this is the remote control transmission
display pin.)
• Power supply voltage
: VDD = 2.2 to 3.6 V
• Operating ambient temperature : TA = –40 to +85 °C
• Oscillator frequency
: fX = 300 kHz to 1 MHz
• POC circuit
APPLICATION
Infrared remote control transmitter (for AV and household electric 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. U13595EJ2V0DS00 (2nd edition)
Date Published June 1999 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1998, 1999

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UPD61P34BGS pdf
TABLE OF CONTENTS
µPD61P34B
1. PIN FUNCTIONS .........................................................................................................................
1.1 Normal Operating Mode ....................................................................................................................
1.2 PROM Programming Mode ...............................................................................................................
1.3 INPUT/OUTPUT Circuits of Pins ......................................................................................................
1.4 Dealing with Unused Pins ................................................................................................................
1.5 Notes on Using KI Pin at Reset ........................................................................................................
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6
7
8
9
9
2. DIFFERENCES AMONG µPD6133, 6134, AND µPD61P34B .................................................... 10
2.1 Program Memory (One-time PROM) ................................................................................................ 11
3. WRITING AND VERIFYING ONE-TIME PROM (PROGRAM MEMORY) .................................. 12
3.1 Operating Mode When Writing/Verifying Program Memory .......................................................... 12
3.2 Program Memory Writing Procedure ............................................................................................... 13
3.3 Program Memory Reading Procedure ............................................................................................. 14
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
Data Sheet U13595EJ2V0DS00
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UPD61P34BGS arduino
µPD61P34B
2.1 Program Memory (One-time PROM) ... 1002 steps × 10 bits
This one-time PROM is configured with 10 bits per step and is addressed by the program counter.
The program memory stores programs and table data.
The 22 steps from addresses 3EAH through 3FFH constitute a test program area and must not be used.
Figure 2-1. Program Memory Map
000H
10 bits
3E9H
3EAH
3FFH
Test program areaNote
Note Even if execution jumps to the test program area by mistake, it returns to address 000H.
Data Sheet U13595EJ2V0DS00
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