UPD75402ACA Ver la hoja de datos (PDF) - NEC => Renesas Technology

Número de pieza

componentes Descripción

Fabricante

UPD75402ACA

4 BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

1. PIN CONFIGURATION (TOP VIEW)

28-pin plastic DIP (600 mil), 28-pin plastic shrink DIP (400 mil)

µPD75402A(A)

Note NC

1

RESET

2

P00

3

P01/SCK

4

P02 /SO/SB0

5

P03/SI

6

P50

7

P51

8

P52

9

P53

10

P30

11

P31

12

P32

13

VSS

14

28

VDD

27

X1

26

X2

25

P12 /INT2

24

P10/INT0

23

P23

22

P22 /PCL

21

P21

20

P20

19

P63

18

P62

17

P61

16

P60

15

P33

P00 - P03 : Port 0

P10 and P12: Port 1

P20 - P23 : Port 2

P30 - P33 : Port 3

P50 - P53 : Port 5

P60 - P63 : Port 6

SCK

: Serial clock I/O

SO/SB0 : Serial output/input-output

SI

: Serial input

PCL

: Clock output

INT0

: External vectored interrupt input

INT2

: External test input

X1 and X2 : Oscillating pins

RESET : Reset input

VDD

: Power supply

VSS

: Ground

NC

: No connection

Note When the µPD75402A(A) shares the printed circuit board with the µPD75P402, connect the NC pin

directly to the VSS pin.

4

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