Renesas PCA4738S-42A Especificaciones descargar pdf (Pagina 3)

2

3851 Group

(Built-in 16 KB ROM)

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

FUNCTIONAL BLOCK DIAGRAM

Fig. 2 Functional block diagram

FUNCTIONAL BLOCK

INT

0

–

CNTR

0

CNTR

1

V

REF

AV

SS

R A M

R O M

C P U

A

X

Y

S

PC

H

PC

L

PS

V

SS

21

RESET

18

V

CC

1 15

CNV

SS

23

X

IN

19

20

SI/O(8)

Reset input

Clock generating circuit

Main-clock

input

Main-clock

output

A-D

converter

(10)

Timer Y( 8 )

Timer X( 8 )

Prescaler 12(8)

Prescaler X(8)

Prescaler Y(8)

Timer 1( 8 )

Timer 2( 8 )

Sub-clock

input

X

OUT

X

CIN

X

COUT

Sub-clock

output

Watchdog

timer

Reset

P2(8)

P3(5)

I/O port P2

I/O port P3

P4(5)

I/O port P4

I C

INT

3

4

6

8

5

7

39

4138 40

42

9

11

13

17

10

12

14

16

P1(8)

I/O port P1

22 24 26 2823

25

27 29

P0(8)

I/O port P0

30 31

32 3334 35 36

37

PWM

(8)

2

X

CIN

X

COUT

1 2 3 4 5 6 7 8 ... 54 55

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