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PDF UPD78002BCWA Data sheet ( Hoja de datos )

Número de pieza UPD78002BCWA
Descripción 8-BIT SINGLE-CHIP MICROCOMPUTER
Fabricantes NEC 
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD78001B(A), 78002B(A)
8-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The µPD78001B(A)/78002B(A) are products in the µPD78002 subseries within the 78K/0 series.
The µPD78001B(A)/78002B(A) have various peripheral hardware such as timer, serial interface and interrupt
function.
A one-time PROM or EPROM product, the µPD78P014, capable of operating in the same power supply voltage
range as that of the mask ROM product and other development tools is provided.
Functions are described in detail in the following User's Manual, which should be read when carrying out design
work.
µPD78002, 78002Y Series User's Manual: IEU-1334
FEATURES
The µPD78001B, in comparison with the 78002B, is a higher reliability device, as a result of a more comprehensive
quality assurance program (Refer to Quality Grade on NEC Semiconductor Devices (IEI-1209))
Large on-chip ROM & RAM
Item
Product Name
µPD78001B(A)
µPD78002B(A)
Program Memory
(ROM)
8K bytes
16K byte
Data Memory
(Internal High-Speed RAM)
256 bytes
384 bytes
Package
64-pin plastic shrink DIP (750 mil)
64-pin plastic QFP ( 14 mm)
External memory expansion space: 64K bytes
Instruction execution time can be varied from high-speed (0.4 µs) to ultra-low-speed (122 µs)
I/O ports: 53 (N-ch open-drain : 4)
Serial interface : 1 channel
Timer: 4 channels
Operating voltage range : 2.7 to 6.0 V
APPLICATION
Transmission equipment control device, gas detector circuit breaker, safety devices, etc.
The information in this document is subject to change without notice.
Document No. IC-3599
(O.D. No. IC-9078)
Date Published February 1995 P
Printed in Japan
© 1995

1 page




UPD78002BCWA pdf
µPD78001B(A), 78002B(A)
CONTENTS
1. PIN CONFIGURATION (TOP VIEW) ..................................................................................................... 6
2. BLOCK DIAGRAM ................................................................................................................................... 9
3. PIN FUNCTIONS ..................................................................................................................................... 10
3.1 PORT PINS ...................................................................................................................................................... 10
3.2 OTHER PINS ................................................................................................................................................... 12
3.3 PIN I/O CIRCUIT AND RECOMMENDED CONNECTION OF UNUSED PINS ...................................... 13
4. MEMORY SPACE .................................................................................................................................... 15
5. PERIPHERAL HARDWARE FUNCTION FEATURES ............................................................................ 16
5.1 PORTS .............................................................................................................................................................. 16
5.2 CLOCK GENERATOR ...................................................................................................................................... 17
5.3 TIMER/EVENT COUNTER .............................................................................................................................. 18
5.4 CLOCK OUTPUT CONTROL CIRCUIT ......................................................................................................... 20
5.5 BUZZER OUTPUT CONTROL CIRCUIT ....................................................................................................... 20
5.6 SERIAL INTERFACES ..................................................................................................................................... 21
6. INTERRUPT FUNCTIONS AND TEST FUNCTIONS .......................................................................... 22
6.1 INTERRUPT FUNCTIONS ............................................................................................................................... 22
6.2 TEST FUNCTIONS .......................................................................................................................................... 25
7. EXTERNAL DEVICE EXPANSION FUNCTIONS ................................................................................. 26
8. STANDBY FUNCTIONS ......................................................................................................................... 26
9. RESET FUNCTION .................................................................................................................................. 26
10. INSTRUCTION SET ................................................................................................................................ 27
11. ELECTRICAL SPECIFICATIONS ............................................................................................................. 30
12. CHARACTERISTIC CURVE (REFERENCE VALUES) ........................................................................... 48
13. PACKAGE DRAWINGS ........................................................................................................................... 52
14. RECOMMENDED SOLDERING CONDITIONS ..................................................................................... 56
APPENDIX A. DEVELOPMENT TOOLS ...................................................................................................... 57
APPENDIX B. RELATED DOCUMENTS ...................................................................................................... 59
5

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UPD78002BCWA arduino
µPD78001B(A), 78002B(A)
3.1 PORT PINS (2/2)
Pin Name
I/O
Function
P50 to P57
Input/
output
P60 Input/
output
P61
P62
P63
P64
P65
P66
P67
Port 5
8-bit input/output port.
LED can be driven directly.
Input/output can be specified bit-wise.
When used as an input port, pull-up resistor can be used by software.
Port 6
8-bit input/output port.
Input/output can be specified
bit-wise.
N-ch open-drain input/output port. On-
chip pull-up resistor can be specified by
mask option.
LED can be driven directly.
When used as an input port, pull-up
resistor can be used by software.
After
Reset
Input
Dual-
Function Pin
A8 to A15
Input
RD
WR
WAIT
ASTB
Caution When pull-up resistors are not used (specified by mask option), the low-level input leak current
increases with -200 µA (MAX.) under either of the following conditions.
1 When the external device expansion function is used and a low-level is input to the pin.
2 During the 3-clock period when a read instruction is executed on port 6 (P6) and the port mode
register (PM6).
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