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UPD178004A Datasheet(PDF) 3 Page - NEC

Part # UPD178004A
Description  8-BIT SINGLE-CHIP MICROCONTROLLERS
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD178004A Datasheet(HTML) 3 Page - NEC

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µPD178004A, 178006A, 178016A, 178018A
3
OUTLINE OF FUNCTION
Product name
µPD178004A
µPD178006A
µPD178016A
µPD178018A
Item
Internal
ROM (ROM configuration)
32 Kbytes
48 Kbytes
60 Kbytes
memory
(mask ROM)
(mask ROM)
(mask ROM)
High-speed RAM
1 024 bytes
Buffer RAM
32 bytes
Expansion RAM
Not provided
2 048 bytes
General-purpose register
8 bits
× 32 registers (8 bits × 8 registers × 4 banks)
Instruction cycle
With variable instruction execution time function
0.44
µs/0.88 µs/1.78 µs/3.56 µs/7.11 µs/14.22 µs (with 4.5-MHz crystal resonator)
Instruction set
• 16-bit operation
• Multiplication/division (8 bits
× 8 bits, 16 bits ÷ 8 bits)
• Bit manipulation (set, reset, test, Boolean operation)
• BCD adjustment, etc.
I/O port
Total
: 62 pins
CMOS input
:
1 pin
CMOS I/O
: 54 pins
N-ch open-drain I/O
:
4 pins
N-ch open-drain output :
3 pins
A/D converter
8-bit resolution
× 6 channels
Serial interface
• 3-wire/SBI/2-wire/I2C bus Note mode selectable
: 1 channel
• 3-wire serial I/O mode
(with automatic transfer/receive function of up to 32 byte) : 1 channel
Timer
• Basic timer (timer carry FF (10 Hz))
: 1 channel
• 8-bit timer/event counter
: 2 channels
• 8-bit timer (D/A converter: PWM output) : 1 channel
• Watchdog timer
: 1 channel
Buzzer (BEEP) output
1.5 kHz, 3 kHz, 6 kHz
Vectored
Maskable
Internal: 8, external: 7
interrupt
Non-maskable
Internal: 1
Source
Software
Internal: 1
Test input
Internal: 1
Note
When using the I2C bus mode (including when this mode is implemented by program without using the
peripheral hardware), consult your local NEC sales representative when you place an order for mask.
(1/2)


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