UPD178018 datasheet(3/56 Pages) NEC

3 / 56 page

µPD178004, 178006, 178016, 178018

OUTLINE OF FUNCTION

Product name

µPD178004

µPD178006

µPD178016

µPD178018

Item

Internal

ROM (ROM configuration)

32 Kbytes

48 Kbytes

60 Kbytes

memory

(mask ROM)

Internal high-speed RAM

1024 bytes

Buffer RAM

32 bytes

Internal expansion RAM

None

2048 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 busNote 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 interrupt

Internal: 8, external: 7

interrupt

Non-maskable interrupt

Internal: 1

Software interrupt

Internal: 1

Test input

Internal: 1

PLL frequency

Division mode

Two types

synthesizer

• Direct division mode (VCOL pin)

• Pulse swallow mode (VCOH and VCOL pins)

Reference frequency

12 types selectable by program (1, 1.25, 2.5, 3, 5, 6.25, 9, 10, 12.5, 25, 50 kHz)

Charge pump

Error out output: 2

Phase comparator

Unlock detectable by program

Frequency counter

• Frequency measurement

• AMIFC pin: for 450-kHz count

• FMIFC pin: for 450-kHz/10.7-MHz count

D/A converter (PWM output)

8-/9-bit resolution

× 3 channels (shared by 8-bit timer)

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.

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UPD178018 Datasheet(PDF) 3 Page - NEC

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