UPD75308BGK Datasheet PDF - NEC
Part Number | UPD75308BGK | |
Description | 4-BIT SINGLE-CHIP MICROCOMPUTER | |
Manufacturers | NEC | |
Logo | ||
There is a preview and UPD75308BGK download ( pdf file ) link at the bottom of this page. Total 70 Pages |
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MOS INTEGRATED CIRCUIT
µPD75304B,75306B,75308B
4-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The µPD75308B is a 75X Series 4-bit single-chip microcomputer capable of the same data processing as an
8-bit microcomputer.
It is a low voltage operation version of the µPD75308 with on-chip LCD controller/driver. Operation at an
ultra-low voltage of 2.0 V is possible. An ultra small-sized plastic QFP (12 × 12 mm) is also provided and it is
perfect for small-sized set that uses an LCD panel.
Functions, etc., are described in detail in the User's Manual. Please be sure to read this manual when
carrying out design work.
µPD75308 User's Manual: IEM-5016
FEATURES
• Ultra-low-voltage operation possible: VDD = 2.0 to 6.0 V
• Can be driven by two 1.5 V manganese batteries.
• On-chip memory
• Program memory (ROM) : 8064 × 8 bit (µPD75308B)
: 6016 × 8 bit (µPD75306B)
: 4096 × 8 bit (µPD75304B)
• Data memory (RAM)
: 512 × 4 bit
• Instruction execution time adjustment function convenient in high-speed operation and power saving
• 0.95 µs, 1.91 µs, 15.3 µs (4.19 MHz operation)
• 122 µs (32.768 kHz operation)
• Built-in programmable LCD controller/driver
• LCD drive voltage: 2.0 V to VDD
• An ultra small-sized plastic QFP (12 × 12 mm) is provided.
• Suitable for small-sized set, such as a camera.
• On-chip PROM products available
• On-chip one-time PROM products : µPD75P308, 75P316A
• On-chip EPROM products
: µPD75P308, 75P316B
APPLICATIONS
Remote control, integrated camera type VCR, camera, gas meter, etc.
Unless there are any particular functional differences, the µPD75308B is described in this document as a
representative product.
Document No. IC-2913C
(O. D. No. IC-8082D)
Date Published January 1994 P
Printed in Japan
The information in this document is subject to change without notice.
The mark 5 shows major revised points.
© NEC Corporation 1991
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µPD75304B,75306B,75308B
CONTENTS
1. PIN CONFIGURATION (TOP VIEW)...............................................................................................
6
2. BLOCK DIAGRAM............................................................................................................................ 8
3. PIN FUNCTIONS ..............................................................................................................................
3.1 PORT PINS ..............................................................................................................................................
3.2 NON-PORT PINS .....................................................................................................................................
3.3 PIN INPUT/OUTPUT CIRCUITS ..............................................................................................................
3.4 RECOMMENDED CONNECTION OF UNUSED PINS .............................................................................
3.5 PRECAUTIONS CONCERNING P00/INT4 PIN AND RESET PIN ...........................................................
9
9
11
13
15
16
4. MEMORY CONFIGURATION .......................................................................................................... 16
5. PERIPHERAL HARDWARE FUNCTIONS ........................................................................................
5.1 PORTS .....................................................................................................................................................
5.2 CLOCK GENERATOR ...............................................................................................................................
5.3 CLOCK OUTPUT CIRCUIT .......................................................................................................................
5.4 BASIC INTERVAL TIMER ........................................................................................................................
5.5 WATCH TIMER ........................................................................................................................................
5.6 TIMER/EVENT COUNTER .......................................................................................................................
5.7 SERIAL INTERFACE .................................................................................................................................
5.8 LCD CONTROLLER/DRIVER ....................................................................................................................
5.9 BIT SEQUENTIAL BUFFER ......................................................................................................................
21
21
22
23
24
25
26
28
30
32
6. INTERRUPT FUNCTION ................................................................................................................. 32
7. STANDBY FUNCTION .................................................................................................................... 34
8. RESET FUNCTION .......................................................................................................................... 35
9. INSTRUCTION SET ......................................................................................................................... 37
10. MASK OPTION SELECTION ............................................................................................................ 45
11. ELECTRICAL SPECIFICATIONS ...................................................................................................... 46
12. PACKAGE INFORMATION .............................................................................................................. 64
13. RECOMMENDED SOLDERING CONDITIONS ................................................................................ 67
APPENDIX A. DIFFERENCES AMONG SERIES PRODUCTS .............................................................. 70
APPENDIX B. DEVELOPMENT TOOLS ............................................................................................... 72
APPENDIX C. RELATED DOCUMENTS .............................................................................................. 73
5
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