UPD75048 datasheet(7/68 Pages) NEC

Part #	UPD75048

Description	4-BIT SINGLE-CHIP MICROCOMPUTER

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Manufacturer	NEC [NEC]

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

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7 / 68 page

7

µPD75048

PIN IDENTIFICATION

P00-03

: Port0

: Port 0

P10-13

: Port1

: Port 1

P20-23

: Port2

: Port 2

P30-33

: Port3

: Port 3

P40-43

: Port4

: Port 4

P50-53

: Port5

: Port 5

P60-63

: Port6

: Port 6

P70-73

: Port7

: Port 7

P80-83

: Port8

: Port 8

P90-93

: Port9

: Port 9

P100-103

: Port10

: Port 10

P110-113

: Port11

: Port 11

KR0-7

: Key Return

: Key interrupt input

SCK

: Serial Clock

: Serial clock input/output

SI

: Serial Input

: Serial data input

SO

: Serial Output

: Serial data output

SB0, 1

: Serial Bus 0, 1

: Serial bus input/output

RESET

: Reset Input

: Reset input

TI0

: Timer Input 0

: External event pulse input

PTO0

: Programmable Timer Output 0

: Timer/event counter output

BUZ

: Buzzer Clock

: Arbitrary frequency output

PCL

: Programmable Clock

: Clock output

INT0,1,4

: External Vectored Interrupt 0, 1, 4

: External vector interrupt input

INT2

: External Test Input 2

: External test input

X1, 2

: Main System Clock Oscillation 1, 2

: Main system clock oscillation pin

XT1, 2

: Subsystem Clock Oscillation 1, 2

: Subsystem clock oscillation pin

MAR

: Reference Integration Control

: Reference integration signal output

MAI

: Integration Control

: Integration signal output

MAZ

: Autozero Control

: Autozero signal output

MAT

: External Comparate Timing Input

: External comparator signal input

PPO

: Programmable Pulse Output ...

: Pulse output ... MFT timer mode

: MFT timer mode

AN0-7

: Analog Input 0-7

: Analog input

AVREF+

: Analog Reference (+)

: Analog reference voltage (+) input (AVDD)

AVREF-

: Analog Reference (-)

: Analog reference voltage (-) input (AVSS)

AVDD

: Analog VDD

: A/D converter positive power supply

AVSS

: Analog VSS

: A/D converter GND

VDD

: Positive Power Supply

: Positive power supply

VSS

: Ground

: GND

Remarks : MFT: Multi-function timer

MFT

A/D

mode

MFT

A/D

mode

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