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PDF UPD753108GC Data sheet ( Hoja de datos )
| Número de pieza | UPD753108GC | |
| Descripción | 4-BIT SINGLE-CHIP MICROCONTROLLER | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD753104, 753106, 753108
4-BIT SINGLE-CHIP MICROCONTROLLER
The µPD753108 is one of the 75XL Series 4-bit single-chip microcontroller chips and has a data processing
capability comparable to that of an 8-bit microcontroller.
The existing 75X Series containing an LCD controller/driver supplies an 80-pin package.
The µPD753108 supplies a 64-pin package (12 x 12 mm), which is suitable for small-scale systems.
It features expanded CPU functions and can provide high-speed operation at a low supply voltage of 1.8 V
compared with the existing µPD75308B.
For detailed function descriptions, refer to the following user’s manual. Be sure to read the document
before designing.
µPD753108 User’s Manual: U10890E
Features
Low voltage operation: VDD = 1.8 to 5.5 V
• Can be driven by two 1.5-V batteries
On-chip memory
• Program memory (ROM):
4096 x 8 bits (µPD753104)
6144 x 8 bits (µPD753106)
8192 x 8 bits (µPD753108)
• Data memory (RAM):
512 x 4 bits
Capable of high-speed operation and variable instruction execution time for power saving
• 0.95, 1.91, 3.81, 15.3 µs (@ 4.19 MHz with main system clock)
• 0.67, 1.33, 2.67, 10.7 µs (@ 6.0 MHz with main system clock)
• 122 µs (@ 32.768 kHz with subsystem clock)
Internal programmable LCD controller/driver
Small package:
64-pin plastic QFP (12 x 12 mm, 0.65-mm pitch)
One-time PROM version: µPD75P3116
Application
Remote controllers, cameras, hemadynamometers, electronic scale, gas meters, etc.
Unless otherwise indicated, references in this data sheet to the µPD753108 mean the
µPD753104 and µPD753106.
The information in this document is subject to change without notice.
Document No. U10086EJ3V0DS00 (3rd edition)
Date Published April 1997 N
Printed in Japan
The mark shows major revised points.
©
1995
1 page  
µPD753104, 753106, 753108
APPENDIX A. µPD75308B, 753108 AND 75P3116 FUNCTIONAL LIST .............................................. 81
APPENDIX B. DEVELOPMENT TOOLS ................................................................................................. 83
APPENDIX C. RELATED DOCUMENTS ................................................................................................ 87
5
5 Page 
µPD753104, 753106, 753108
3.2 Non-port Pins (1/2)
Pin Name
Input/Output
Alternate
Function
Function
I/O Circuit
After Reset
TYPE Note 1
TI0
Input
P13 Inputs external event pulses to the timer/event
counter.
TI1 P12/INT2/TI2
TI2 P12/INT2/TI1
PTO0
Output
P20 Timer/event counter output
PTO1
P21
PTO2
P22/PCL
PCL
P22/PTO2 Clock output
BUZ
P23 Optional frequency output (for buzzer output or
system clock trimming)
SCK
Input/Output P01 Serial clock input/output
SO/SB0
P02 Serial data output
Serial data bus input/output
SI/SB1
P03 Serial data input
Serial data bus input/output
INT4
Input
P00 Edge detection vectored interrupt input (both
rising edge and falling edge detection)
INT0
INT1
INT2
Input
P10
P11
P12/TI1/TI2
Edge detection vectored
interrupt input (detection
edge can be selected).
INT0/P10 can select noise
elimination circuit.
Rising edge detection
testable input
Noise elimination circuit/
asynchronous selection
Asynchronous
Asynchronous
KR0-KR3
Input
P60-P63 Falling edge detection testable input
S0-S15
Output
– Segment signal output
S16-S19
Output
P93-P90 Segment signal output
S20-S23
Output
P83-P80 Segment signal output
COM0-COM3 Output
– Common signal output
VLC0-VLC2
–
– LCD drive power
On-chip split resistor is enabled (mask option).
BIAS
Output
– Output for external split resistor disconnect
LCDCL Note 4
Output
P30 Clock output for externally expanded driver
SYNC Note 4
Output
P31 Clock output for externally expanded driver
synchronization
Input
Input
Input
Input
Input
Input
Note 2
Input
Input
Note 2
–
Note 3
Input
Input
(B)-C
E-B
(F)-A
(F)-B
(M)-C
(B)
(B)-C
(F)-A
G-A
H
H
G-B
–
–
E-B
E-B
Notes 1.
2.
3.
4.
Characters in parentheses indicate the Schmitt trigger input.
Each display output selects the following VLCX as input source.
S0-S15: VLC1, COM0-COM2: VLC2, COM3: VLC0
When a split resistor is contained ........ Low level
When no split resistor is contained ...... High-impedance
These pins are provided for future system expansion.
At present, these pins are used only as pins P30 and P31.
11
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