ST7282 datasheet(2/23 Pages) STMICROELECTRONICS

2 / 23 page

ST7282A5 - ST7282B5 - ROM FROM EPROM

Family

Issuer Ref.

Chrono

March 26, 1997

Previous Ref

Edition

ST7

PG-RO

97115

7282A5B5

Target C

Page 2/23

1 GENERAL DESCRIPTION

Figure 1. Block Diagram

W A T C HDO G

R A M

864

E EPR O M

51 2

T IM E R 16 bit

AD C

32K R O M

ST 7 2 C O R E

OS C IL L A T OR

RD S DE M O D.

G R P & B LK S Y N C

PO R T B

PO R T C

PA 0 /C P 1/A IN

PA 7 /A IN

PA 6 /A IN

PA 5 /A IN

PA 4 /A IN

PA 3 /A IN

PA 2 /A IN

PA 1 /C P 2/A IN

OS C IN

OS C O U T /S T O P

RD S F IL

SIO

MP X

RD S CO M P /P E 4 /S 2 1

S1 6 /P D 7

S1 5 /P D 6

S1 4 /P D 5

S1 3 /P D 4

S1 2 /P D 3

S1 1 /P D 2

S1 0 /P D 1

S9 /P D 0

S8 /P F 7

S7 /P F 6

S6 /P F 5

S5 /P F 4

S4 /P F 3

S3 /P F 2

S2 /P F 1

S1 /P F 0

BP 1 6 /S 0 /P G 7

B P 1 5 /S - 1/P G 6

B P 1 4 /S - 2/P G 5

B P 1 3 /S - 3/P G 4

B P 1 2 /S - 4/P G 3

B P 1 1 /S - 5/P G 2

B P 1 0 /S - 6/P G 1

B P 9/S -7/P G 0

8 .55M H z

ST 7 IO 3

R D S F ilte r

RD S RE F

ST 7 R D S F I

PO R T H

ST 7 L C IO

S T 7 OS C IL L A T OR

S T 7 RDS G B

ST 7 R D S B D

ST 7 T IM 4

ST 7 W D 2

ST 7 A D C 2

Os c - Op tio n

VD D

VS S

VP P/T EST

L CD RA M

56By te

L C D CO NT RO L

ST7 L C D 4

S e g . D rv ./P o r t E

ST 7 L C IO

RE S E T

S2 2 /P E 5

S2 1 /P E 4 /R D S C O M P

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