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PDF UPD17015GS Data sheet ( Hoja de datos )
| Número de pieza | UPD17015GS | |
| Descripción | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR PORTABLE RADIOS | |
| Fabricantes | NEC | |
| Logotipo |  |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD17015
4-BIT SINGLE-CHIP MICROCONTROLLER FOR PORTABLE RADIOS
The µPD17015 is a super low-voltage 4-bit single-chip microcontroller for digital tuning applications. It features
a prescaler that can operate at frequencies up to 220 MHz, a PLL synthesizer, and an LCD controller/driver, all
configured in one chip.
Since, for its CPU, the µPD17015 adopts a 17K architecture which allows data memory to be manipulated directly
without accumulators, programming efficiency is enhanced. Each instruction is 16 bits (one word) long.
Since this microcontroller can operate at low voltages (VDD = 1.8 to 3.6 V), it is ideal for controlling portable, battery-
powered units such as portable radios, headphone stereo sets, and radio-cassette players.
FEATURES
• 17K architecture
: General registers
• Program memory (ROM) : 3K bytes (1528 × 16 bits)
• Data memory (RAM)
: 97 × 4 bits
• General-purpose I/O ports : 12
• Minimum required peripheral hardware is built into the chip.
• LCD controller/driver
: 9 segments × 4 commons
• PLL frequency synthesizer and 220-MHz (MAX.) prescaler
• Clock generator port
• Low-voltage operation
: VDD = 1.8 to 3.6 V (TA = –10 to +50 °C)
ORDERING INFORMATION
Part number
µPD17015GS-×××-GJG
Package
38-pin plastic shrink SOP (300 mil)
Remark ××× is a ROM code number.
Document No. U10416EJ1V0DS00
(1st edition)
Date Published September 1995 P
Printed in Japan
The information in this document is subject to change without notice.
Major changes in this revision are indicated by stars (5) in the margins.
©
1995
1 page  
CONTENTS
µPD17015
1. PIN FUNCTIONS .........................................................................................................................
1.1 PIN FUNCTIONS .............................................................................................................................
1.2 EQUIVALENT CIRCUIT OF EACH PIN .........................................................................................
1.3 HANDLING UNUSED PINS ............................................................................................................
1.4 NOTES ON USE OF THE CE PIN .................................................................................................
8
8
9
12
13
2. PROGRAM MEMORY (ROM) ..................................................................................................... 14
2.1 OUTLINE OF PROGRAM MEMORY ............................................................................................. 14
2.2 PROGRAM MEMORY CONFIGURATION ..................................................................................... 14
2.3 PROGRAM COUNTER ................................................................................................................... 15
2.4 PROGRAM FLOW ........................................................................................................................... 15
2.5 NOTES ON USE OF PROGRAM MEMORY .................................................................................. 16
3. ADDRESS STACK REGISTER (ASR) ....................................................................................... 17
3.1 OUTLINE AND CONFIGURATION OF ADDRESS STACK REGISTER ..................................... 17
3.2 ADDRESS STACK REGISTER OPERATION ............................................................................... 17
3.3 NOTES ON USE OF ADDRESS STACK REGISTER ................................................................... 17
4. DATA MEMORY (RAM) .............................................................................................................. 18
4.1 OUTLINE OF DATA MEMORY ...................................................................................................... 18
4.2 CONFIGURATION AND FUNCTIONS OF DATA MEMORY ........................................................ 18
4.3 DATA MEMORY ADDRESSING .................................................................................................... 21
4.4 NOTES ON USING DATA MEMORY ............................................................................................. 21
5. SYSTEM REGISTER (SYSREG) ................................................................................................ 22
5.1 OUTLINE OF SYSTEM REGISTER ............................................................................................... 22
5.2 PROGRAM STATUS WORD (PSWORD) ...................................................................................... 23
5.3 NOTES ON USING SYSTEM REGISTER ..................................................................................... 24
6. GENERAL-PURPOSE REGISTER (GR) ................................................................................... 25
6.1 OUTLINE OF GENERAL-PURPOSE REGISTER ......................................................................... 25
6.2 GENERAL-PURPOSE REGISTER ADDRESS GENERATION WITH INSTRUCTIONS ............. 25
6.3 NOTES ON USING GENERAL-PURPOSE REGISTER ............................................................... 26
7. ARITHMETIC LOGIC UNIT (ALU) BLOCK ............................................................................... 27
7.1 OVERVIEW ...................................................................................................................................... 27
7.2 CONFIGURATION AND FUNCTIONS OF THE COMPONENTS OF THE ALU BLOCK ........... 28
7.3 ALU OPERATIONS ......................................................................................................................... 28
7.4 NOTES ON USING THE ALU ........................................................................................................ 31
5
5 Page 
(6) VCOH: (Input)
µPD17015
High on-state resistance
VDD
VDD
(7) CE: (Schmitt-triggered input)
VDD
(8) XOUT: (Output), XIN: (Input)
XIN
High on-state resistance
VDD
VDD
XOUT
11
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet UPD17015GS.PDF ] | |
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