UPD780138 datasheet(28/558 Pages) NEC

Part #	UPD780138

Description	8-Bit Single-Chip Microcontrollers

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Manufacturer	NEC [NEC]

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

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28 / 558 page

CHAPTER 1 OUTLINE

User’s Manual U16228EJ2V0UD

28

Pin Identification

ANI0 to ANI7:

Analog input

AVREF:

Analog reference voltage

AVSS:

Analog ground

BUZ:

Buzzer output

EVDD:

Power supply for port

EVSS:

Ground for port

IC:

Internally connected

INTP0 to INTP7: External interrupt input

KR0 to KR7:

Key return

P00 to P06:

Port 0

P10 to P17:

Port 1

P20 to P27:

Port 2

P30 to P33:

Port 3

P40 to P43:

Port 4

P50 to P53:

Port 5

P60 to P63:

Port 6

P70 to P77:

Port 7

P120:

Port 12

P130:

Port 13

P140, P141:

Port 14

PCL:

Programmable clock output

REGC:

Regulator capacitance

RESET:

Reset

RxD0, RxD6:

Receive data

SCK10, SCK11

Note:

Serial clock input/output

SI10, SI11

Note:

Serial data input

SO10, SO11

Note:

Serial data output

SSI11

Note:

Serial interface chip select input

TI000, TI010,

TI001

Note, TI011Note,

TI50, TI51:

Timer input

TO00, TO01

Note,

TO50, TO51,

TOH0, TOH1:

Timer output

TxD0, TxD6:

Transmit data

VDD:

Power supply

VPP:

Programming power supply

VSS:

Ground

X1, X2:

Crystal oscillator (X1 input clock)

XT1, XT2:

Crystal oscillator (Subsystem clock)

Note SO11, SI11, SCK11, SSI11, TI001, TI011, and TO01 are available only in the

µPD780133, 780134,

78F0134, 780136, 780138, and 78F0138.

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