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PDF UPD750066 Data sheet ( Hoja de datos )
| Número de pieza | UPD750066 | |
| Descripción | (UPD75006x) 4-BIT SINGLE-CHIP MICROCONTROLLERS | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
4-BIT SINGLE-CHIP MICROCONTROLLERS
The µPD750068 is one of the 75XL Series 4-bit single-chip microcontrollers and has a data processing capability
comparable to that of an 8-bit microcontroller.
The µPD750068 provides more CPU functions compared to the 75X Series and realizes high-speed operation
at the low voltage of 1.8 V, making it ideal for battery-driven applications. This device has on-chip A/D converters,
and sophisticated timers capable of operating as a 16-bit timer. The µPD750068(A) has a higher reliability than
the µPD750068.
A version with on-chip one-time PROM, µPD75P0076, is also available for the evaluation during system
development or for small-scale production.
Detailed function descriptions are provided in the following user’s manual. Be sure to read
the document before designing.
µPD750068 User’s Manual: U10670E
Features
O Low-voltage operation: VDD = 1.8 to 5.5 V
O On-chip memory
• Program memory (ROM):
4096 × 8 bits (µPD750064, 750064(A))
6144 × 8 bits (µPD750066, 750066(A))
8192 × 8 bits (µPD750068, 750068(A))
• Data memory (RAM):
512 × 4 bits
O Variable instruction execution time for high-speed
operation and power-saved operation
• 0.95, 1.91, 3.81, 15.3 µs (@ 4.19-MHz operation)
• 0.67, 1.33, 2.67, 10.7 µs (@ 6.0-MHz operation)
• 122 µs (@ 32.768-kHz operation)
O Internal low-voltage A/D converters
(AVREF = 1.8 to 5.5 V)
8-bit resolution × 8 channels
O Small packages (shrink SOP, shrink DIP)
O Uses instructions of 75X Series for easy replacement
Applications
O µPD750064, 750066, 750068
Cordless phones, audio-visual equipment, home appliances, office machines, fitness machines, meters, gas
ranges, etc.
O µPD750064(A), 750066(A), 750068(A)
Electrical equipment for automobiles
The µPD750064, 750066, 750068 and µPD750064(A), 750066(A), 750068(A) differ only in quality grade. In
this manual, the µPD750068 is described as typical product unless otherwise specified.
Users of other than the µPD750068 should read the µPD750068 as referring to the pertinent product.
When the description differs among the µPD750064, 750066, and 750068, they also refer to the pertinent (A)
products.
µPD750064 → µPD750064(A), µPD750066 → µPD750066(A), µPD750068 → µPD750068(A)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. U10165EJ2V0DS00 (2nd edition)
Date Published April 1999 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1995
1 page  
µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
APPENDIX A. µPD75068, 750068 AND 75P0076 FUNCTIONAL LIST .................................................. 73
APPENDIX B. DEVELOPMENT TOOLS ................................................................................................. 75
APPENDIX C. RELATED DOCUMENTS ................................................................................................. 79
Data Sheet U10165EJ2V0DS00
5
5 Page 
µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
3.2 Non-port Pins (2/2)
Pin Name
X1
X2
XT1
XT2
RESET
IC
VDD
VSS
Input/Output
Input
–
Input
–
Input
–
–
–
Alternate
Function
–
–
–
–
–
–
Function
I/O Circuit
After Reset
TypeNote
Crystal/ceramic connection pin for the main system
clock oscillation. When inputting the external
clock, input the external clock to pin X1, and the
inverted phase of the external clock to pin X2.
Crystal connection pin for the subsystem clock
oscillation. When the external clock is used, input
the external clock to pin XT1, and the inverted
phase of the external clock to pin XT2. Pin XT1 can
be used as a 1-bit input (test) pin.
–
–
–
–
System reset input (low-level active)
– <B>
Internally connected. Connect directly to VDD.
–
–
Positive power supply
––
Ground potential
––
Note Circuit types enclosed in brackets indicate the Schmitt trigger input.
Data Sheet U10165EJ2V0DS00
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet UPD750066.PDF ] | |
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