UPD784038 datasheet(9/32 Pages) NEC

Part #	UPD784038

Description	16-BIT SINGLE-CHIP MICROCONTROLLER

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Manufacturer	NEC [NEC]

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

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9 / 32 page

Preliminary Product Information

9

µµµµPD78F4937

A8-A19

: Address Bus

PWM0, PWM1

: Pulse Width Modulation Output

AD0-AD7

: Address/Data Bus

RD

: Read Strobe

ANI0-ANI7

: Analog Input

REFRQ

: Refresh Request

ASCK, ASCK2 : Asynchronous Serial Clock

REGC

: Regulator Capacitance

ASTB

: Address Strobe

REGOFF

: Regulator Off

AVDD

: Analog Power Supply

RESET

: Reset

AVREF1

: Reference Voltage

RX

: IEBus Receive Data

AVSS

: Analog Ground

RxD, RxD2

: Receive Data

CI

: Clock Input

SCK0-SCK3

: Serial Clock

CLKOUT

: Clock Output

SI0-SI3

: Serial Input

HLDAK

: Hold Acknowledge

SO0-SO3

: Serial Output

HLDRQ

: Hold Request

TO0-TO3

: Timer Output

INTP0-INTP5

: Interrupt from Peripherals

TX

: IEBus Transmit Data

NMI

: Non-maskable Interrupt

TxD, TxD2

: Transmit Data

P00-P07

: Port 0

VDD

: Power Supply

P10-P17

: Port 1

VPP

: Programming Power Supply

P20-P27

: Port 2

VSS

: Ground

P30-P37

: Port 3

WAIT

: Wait

P40-P47

: Port 4

WR

: Write Strobe

P50-P57

: Port 5

X1, X2

: Crystal (Main System Clock)

P60-P67

: Port 6

XT1, XT2

: Crystal (Watch)

P70-P77

: Port 7

P90-P97

: Port 9

P100-P107

: Port 10

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UPD784038 Datasheet(PDF) 9 Page - NEC

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