UPD17015GS 반도체 회로 부품 판매점
4-BIT SINGLE-CHIP MICROCONTROLLER FOR PORTABLE RADIOS
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 NEC |
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
µPD17015
FUNCTION OVERVIEW
Item
Function
Program memory (ROM)
• 3K bytes (1528 × 16 bits)
General-purpose data memory • 97 × 4 bits
Instruction execution time
5 Stack levels
• 53.3 µs (when 75 kHz crystal is used)
• 1 level
General-purpose ports
• I/O
: 2 ports
• Input only : 3 ports
• Output only : 7 ports
12
BEEP output
1 (3 kHz)
LCD controller/driver
5
Timers
• 9 segments, 4 commons
• 1/4 duty, 1/2 bias, frame frequency 62.5 Hz, driving voltage 3.0 V (TYP.)
2 channels
Basic timer 0 : 125 ms
Basic timer 1 : 5 ms
Reset
• Power-on reset
• Reset with the CE pin (by switching the CE pin from low to high)
• Power-failure detection function
PLL Frequency division
frequency method
synthesizer
2
• Direct division method
• Pulse swallow method
(VCOL pin (MF mode) : 8 MHz MAX.)
(VCOL pin (HF mode) : 55MHz MAX.)
(VCOH pin (VHF mode) : 220MHz MAX.)
Reference frequency 1, 3, 5, or 25 kHz, selected by software.
Charge pump
Error-out output: 1
Phase comparator An unlocked state can be detected by software.
Supply voltage
5 Package
• 1.8 to 3.6 V (TA = –10 to +50 °C)
• 1.9 to 3.6 V (TA = –20 to +50 °C)
38-pin plastic shrink SOP (0.65-mm pitches, 300 mil)
2
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UPD17015GS controller
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