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What is UPD17215GT?

This electronic component, produced by the manufacturer "NEC", performs the same function as "4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER".


UPD17215GT Datasheet PDF - NEC

Part Number UPD17215GT
Description 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
Manufacturers NEC 
Logo NEC Logo 


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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD17215, 17216, 17217, 17218
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
DESCRIPTION
µPD17215, 17216, 17217, 17218 (hereafter called µPD17215 subseries) are 4-bit single-chip microcontrollers for
small general-purpose infrared remote control transmitters.
It employs a 17K architecture of general-purpose register type devices for the CPU, and can directly execute
operations between memories instead of the conventional method of executing operations through the accumulator.
Moreover, all the instructions are 16-bit 1-word instructions which can be programmed efficiently.
In addition, a one-time PROM model, µPD17P218, to which data can be written only once, is also available. It is
convenient either for evaluating the µPD17215 subseries programs or small-scale production of application systems.
Detailed functions are described in the follwing manual. Be sure to read this manual when designing your
system.
µPD172×× Subseries User's Manual: IEU-1317
FEATURES
• Infrared remote controller carrier generator circuit (REM output)
• 17K architecture: General-purpose register system
• Program memory (ROM), Data memory (RAM)
Program memory (ROM)
Data memory (RAM)
µPD17215
4 K bytes
(2048 × 16)
µPD17216
8 K bytes
(4096 × 16)
111 × 4 bits
µPD17217
12 K bytes
(6144 × 16)
µPD17218
16 K bytes
(8192 × 16)
223 × 4 bits
• 8-bit timer
: 1 channel
• Basic internal timer / Watchdog timer: 1 channel (WDOUT output)
• Instruction execution time (can be changed in two steps)
at fX 4 MHz
: 4 µs (high-speed mode)/8 µs (ordinary mode)
at fX 8 MHz
: 2 µs (high-speed mode)/4 µs (ordinary mode)
• External interrupt pin (INT) : 1
• I/O pins
: 20
• Supply voltage
: VDD = 2.2 to 5.5 V (at fX = 4 MHz (high-speed mode))
VDD = 2.0 to 5.5 V (at fX = 4 MHz (ordinary mode))
• Low-voltage detector circuit (mask opation)
Unless otherwise specified, the µPD17215 is treated as the representative model throughout this document.
The information in this document is subject to change without notice.
Document No. U12042EJ3V0DS00 (3rd edition)
(Previous No. IC–3249)
Date Published January 1997 N
Printed in Japan
The mark shows major revised points.
©
1993

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UPD17215GT equivalent
µPD17215, 17216, 17217, 17218
CONTENTS
1. PIN FUNCTIONS ..............................................................................................................................
1.1 Pin Function List .....................................................................................................................................
1.2 Input/Output Circuits ...............................................................................................................................
1.3 Processing of Unused Pins .....................................................................................................................
1.4 Notes on Using INT and RESET Pins .....................................................................................................
7
7
8
9
9
2. MEMORY SPACE ............................................................................................................................. 10
2.1 Program Counter (PC) ............................................................................................................................ 10
2.2 Program Memory (ROM) ........................................................................................................................ 10
2.3 Stack ....................................................................................................................................................... 12
2.4 Data Memory (RAM) ............................................................................................................................... 14
2.5 Register File (RF) ................................................................................................................................... 21
3. PORTS .............................................................................................................................................. 24
3.1 Port 0A (P0A0-P0A3) ............................................................................................................................... 24
3.2 Port 0B (P0B0-P0B3) ............................................................................................................................... 24
3.3 Port 0C (P0C0-P0C3) .............................................................................................................................. 24
3.4 Port 0D (P0D0-P0D3) .............................................................................................................................. 24
3.5 Port 0E (P0E0-P0E3) ............................................................................................................................... 24
3.6 INT Pin .................................................................................................................................................... 25
3.7 Switching Bit I/O ..................................................................................................................................... 26
3.8 Specifying Pull-up Sesistor Connection ................................................................................................... 27
4. CLOCK GENERATOR CIRCUIT ...................................................................................................... 28
4.1 Instruction Execution Time (CPU Clock) Selection ................................................................................. 28
5. 8-BIT TIMER AND REMOTE CONTROLLER CARRIER GENERATOR CIRCUIT ........................ 29
5.1 Configuration of 8-bit Timer (with modulo function) ................................................................................. 29
5.2 Function of 8-bit Timer (with modulo function) ........................................................................................ 31
5.3 Carrier Generator Circuit for Remote Controller ...................................................................................... 32
6. BASIC INTERVAL TIMER/WATCHDOG TIMER ............................................................................. 36
6.1 Source Clock for Basic Interval Timer ..................................................................................................... 36
6.2 Controlling Basic Interval Timer .............................................................................................................. 36
6.3 Operation Timing for Watchdog Timer .................................................................................................... 38
7. INTERRUPT FUNCTIONS ................................................................................................................ 39
7.1 Interrupt Sources .................................................................................................................................... 39
7.2 Hardware of Interrupt Control Circuit ...................................................................................................... 40
7.3 Interrupt Sequence ................................................................................................................................. 44
5


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UPD17215GTThe function is 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER. NECNEC

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