UPD784217A datasheet(10/60 Pages) NEC

Part #	UPD784217A

Description	MOS INTEGRATED CIRCUIT

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Manufacturer	NEC [NEC]

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

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Data Sheet U14125EJ1V0DS00

10

µµµµPD78F4216A, 78F4218A, 78F4216AY, 78F4218AY

A0 to A19:

Address Bus

P120 to P127:

Port 12

AD0 to AD7:

Address/Data Bus

P130, P131:

Port 13

ANI0 to ANI7:

Analog Input

PCL:

Programmable Clock

ANO0, ANO1:

Analog Output

RD:

Read Strobe

ASCK1, ASCK2:

Asynchronous Serial Clock

RESET:

Reset

ASTB:

Address Strobe

RTP0 to RTP7:

Real-time Output Port

AVDD:

Analog Power Supply

RxD1, RxD2:

Receive Data

AVREF0, AVREF1:

Analog Reference Voltage

SCK0 to SCK2:

Serial Clock

AVSS:

Analog Ground

SCL0

Note 1:

Serial Clock

BUZ:

Buzzer Clock

SDA0

Note 1:

Serial Data

EXA

Note 2:

External Access Status Output

SI0 to SI2:

Serial Input

INTP0 to INTP6:

Interrupt from Peripherals

SO0 to SO2:

Serial Output

NMI:

Non-maskable Interrupt

TI00, TI01,

P00 to P06:

Port 0

TI1, TI2, TI5 to TI8:

Timer Input

P10 to P17:

Port 1

TO0 to TO2, TO5 to TO8: Timer Output

P20 to P27:

Port 2

TxD1, TxD2:

Transmit Data

P30 to P37:

Port 3

VDD:

Power Supply

P40 to P47:

Port 4

VPP:

Programming Power Supply

P50 to P57:

Port 5

VSS:

Ground

P60 to P67:

Port 6

WAIT:

Wait

P70 to P72:

Port 7

WR:

Write Strobe

P80 to P87:

Port 8

X1, X2:

Crystal (Main System Clock)

P90 to P95:

Port 9

XT1, XT2:

Crystal (Subsystem Clock)

P100 to P103:

Port 10

Notes 1. The SCL0 and SDA0 pins are available in the

µPD78F4216AY, 78F4218AY only.

2. The EXA pin is available in the

µPD78F4218A, 78F4218AY only.

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