M5295AL 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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M5295AL

WATCHDOG TIMER

MITSUBISHI ELECTRIC  

MITSUBISHI<Dig.Ana.INTERFACE>

M5295AL/P/FP

WATCHDOG TIMER

DESCRIPTION

M5295A is a semiconductor integrated circuit which is

designed for System Reset to detect +5V power supply.

This IC keeps the operation microcomputer watching.

When the system is abnormal,it generates Reset output until the

system returns to normal states of the System.

It is possible to vary the two detective voltage by connecting the

resistor,so it is suitable to high quality and high performance

system.

FEATURES

•Watch Dog Timer

•Power on Reset Timer

•Low circuit current 0.8mA(Typ,Vcc=5V)

•Wide Range of power supply

PIN CONFIGURATION (TOP VIEW)

8 ADJ2

7 RST2

6 Vcc

5 ADJ1

4 GND

3 RST1

2 TC

1 WD

Outline 8P5(AL)

APPLICATION

Microcomputer Systems

RECOMMENDED OPERATING CONDITIONS

Supply voltage...........................................4V to 15V

Rated supply voltage............................................5V

WD 1

TC 2

RST1 3

GND 4

8 ADJ2

7 RST2

6 Vcc

5 ADJ1

Outline 8P4(AP)

8P2S-A(AFP)

BLOCK DIAGRAM

-

+

F.F

F.F

-

+

49.6k

-

+

20.4k

51.2k

18.8k

W.D.T

F.F

20k

30k

1.24V

REFERENCE VOLTAGE

GENERATOR CIRCUIT

1

2

3

4

5

6

7

8

WD

TC

RST1

GND

ADJ1

Vcc

RST2

ADJ2

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