UPD780226 Datasheet PDF - NEC
Part Number | UPD780226 | |
Description | 8 Bit Single-Chip Microcontrollers | |
Manufacturers | NEC | |
Logo | ||
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MOS INTEGRATED CIRCUIT
µPD780226, 780228
8-BIT SINGLE-CHIP MICROCONTROLLERS
DESCRIPTION
The µPD780226 and µPD780228 are members of the µPD780228 Subseries of the 78K/0 Series.
The FIP™ (VFD) controller/driver and N-ch open-drain port of the conventional µPD78044H Subseries have been
enhanced for the µPD780228 Subseries.
A flash memory version, the µPD78F0228, that can operate within the same power supply voltage range as the
mask ROM version, and various development tools are under development.
The details of functions are described in the following user’s manuals. Be sure to read them before
designing.
µPD780228 Subseries User’s Manual : U12012E
78K/0 Series User’s Manual Instructions : IEU-1372
FEATURES
• I/O ports: 72 (sixteen N-ch open-drain I/O ports)
• Internal high-capacity ROM and RAM
Item
Part Number
µPD780226
µPD780228
Program memory
(ROM)
48 Kbytes
60 Kbytes
Internal high-speed RAM
1024 bytes
Data memory
Internal expanded RAM
512 bytes
FIP display RAM
96 bytes
• Minimum instruction execution time can be changed
from high-speed (0.4 µs) to low-speed (6.4 µs)
• FIP controller/driver: 48 display outputs
(Universal grid supported)
• 8-bit resolution A/D converter: eight channels
• Serial interface: one channel
• Timer: Four channels
• Power supply voltage: VDD = 4.5 to 5.5 V
APPLICATIONS
Compact-type integrated system components, separate-type system components, tuners, cassette tape decks,
compact disc players, audio amplifiers, etc.
ORDERING INFORMATION
Part Number
µPD780226GF-×××-3BA
µPD780228GF-×××-3BA
Package
100-pin plastic QFP (14 × 20 mm)
100-pin plastic QFP (14 × 20 mm)
Remark ××× indicates the ROM code suffix.
The information in this document is subject to change without notice.
Document No. U11797EJ1V0DS00 (1st edition)
Date Published July 1997 N
Printed in Japan
The mark shows major revised points.
©
1996
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µPD780226, 780228
CONTENTS
1. PIN CONFIGURATION (TOP VIEW) ................................................................................................. 6
2. BLOCK DIAGRAM ............................................................................................................................. 8
3. PIN FUNCTION LIST .......................................................................................................................... 9
3.1 Port Pins ..................................................................................................................................................... 9
3.2 Non-port Pins .......................................................................................................................................... 11
3.3 Pin I/O Circuits and Recommended Connection of Unused Pins ................................................... 12
4. MEMORY SPACE ............................................................................................................................. 14
5. PERIPHERAL HARDWARE FUNCTION FEATURES ................................................................... 15
5.1 Port ............................................................................................................................................................ 15
5.2 Clock Generator ...................................................................................................................................... 16
5.3 Timer/Event Counter ............................................................................................................................... 16
5.4 A/D Converter .......................................................................................................................................... 18
5.5 Serial Interface ........................................................................................................................................ 19
5.6 FIP Controller/Driver ............................................................................................................................... 19
6. INTERRUPT FUNCTIONS ............................................................................................................... 21
7. STANDBY FUNCTION ..................................................................................................................... 24
8. RESET FUNCTION ........................................................................................................................... 24
9. INSTRUCTION SET .......................................................................................................................... 25
10. ELECTRICAL SPECIFICATIONS ................................................................................................... 27
11. PACKAGE DRAWING ...................................................................................................................... 42
12. RECOMMENDED SOLDERING CONDITIONS .............................................................................. 43
APPENDIX A. DEVELOPMENT TOOLS .............................................................................................. 44
APPENDIX B. RELATED DOCUMENTS .............................................................................................. 46
5
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