UPD178002 datasheet(9/48 Pages) NEC

Part #	UPD178002

Description	8-BIT SINGLE-CHIP MICROCONTROLLERS

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Manufacturer	NEC [NEC]

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

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9 / 48 page

9

µPD178002, 178003

Data Sheet U12628EJ3V0DS00

3.2 Non-port Pins

Pin Name

I/O

Function

After

Alternate

Reset

Function

INTP0,

Input

External maskable interrupt input for which the valid edge (rising edge,

Input

P00, P01

INTP1

falling edge, or both rising and falling edges) can be specified.

SI1

Input

Serial interface serial data input

Input

P20

SO1

Output

Serial interface serial data output

Input

P21

SCK1

I/O

Serial interface serial clock input/output

Input

P22

TI1

Input

External count clock input to 8-bit timer (TM1)

Input

P33

TI2

External count clock input to 8-bit timer (TM2)

P34

BEEP

Output

Buzzer output

Input

P36

ANI0 to

Input

A/D converter analog input

Input

P10 to P15

ANI5

EO0, EO1

Output

Error out output from charge pump of the PLL frequency synthesizer

—

VCOL

Input

Inputs PLL local band frequency (In HF, MF mode)

—

VCOH

Input

Inputs PLL local band frequency (In VHF mode)

—

AMIFC

Input

Inputs AM intermediate frequency counter

—

FMIFC

Input

Inputs FM intermediate frequency or AM intermediate frequency counter

—

RESET

Input

System reset input

—

X1

Input

Connecting crystal resonator for system clock oscillation

—

X2

—

——

REGOSC

—

Oscillation regulator. Connect to GND via a 0.1

µF capacitor.

—

REGCPU

—

CPU power supply regulator. Connect to GND via a 0.1

µF capacitor.

—

VDD

—

Positive power supply

—

GND

—

Ground

——

VDDPORT

—

Positive power supply for port block

—

GNDPORT

—

Ground for port block

—

VDDPLLNote

—

Positive power supply for PLL

—

GNDPLLNote

—

Ground for PLL

—

IC

—

Internally connected. Connect directly to GND or GNDPORT.

—

Note Connect a capacitor of about 1000pF between the VDDPLL pin and GNDPLL pin.

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UPD178002 Datasheet(PDF) 9 Page - NEC

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