UPD178004A datasheet(3/56 Pages) NEC

Part #	UPD178004A

Description	8-BIT SINGLE-CHIP MICROCONTROLLERS

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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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)

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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UPD178004A Datasheet(PDF) 3 Page - NEC

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