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PI4S705, PI4S706x,PI4S707,

PI4S708x, PI4S813L

Low Cost 碌P Supervisor Circuts

Product Features

鈥?Precision supply-voltage monitor

- 4.63V (PI4S705, PI4S813L, PI4S707)

- 4.38V (PI4S706, PI4S706H, PI4S708)

- 3.08V (PI4S706T, PI4S706TH, PI4S708T)

- 2.93V (PI4S706S, PI4S706SH, PI4S708S)

- 2.63V (PI4S706R, PI4S706P, PI4S708R)

鈥?200ms reset pulse width

鈥?Debounced TTL/CMOS-compatible manual-

reset input

鈥?Independent watchdog timer with 1.6sec time-out

(PI4S705, 706x, 706xH, and 813L ONLY )

鈥?Reset output signal:

- Active-low only (PI4S705, 706, 706T, 706S, 706R)

- Active-high only (PI4S813L, 706H, 706TH, 706SH,

706P)

- Active-high and active-low (PI4S707, 708, 708T,

708S, 708R)

鈥?Voltage monitor for power-fail or low battery warning

鈥?Guaranteed RESET/RESET valid at V

CC

= 1.2V

Description

The PI4S70xxx/PI4S813L family microprocessor (碌P)

supervisory circuits are targeted to improve reliability and

accuracy of power-supply circuitry in 碌P systems. These devices

reduce the complexity and number of components required to

monitor power-supply and battery functions.

The main functions are:

1. Asserting reset output during power-碌p, power-down and

brownout conditions for 碌P systems.

2. Detecting power failure or low-battery conditions with a

1.25V threshold detector.

3. Generating an independent watchdog output that goes low if

the watchdog input has not been toggled within 1.6 seconds.

4. Asserting reset output with an active-low manual-reset input

Applications

鈥?Computers

鈥?Controllers

鈥?Intelligent Instruments

鈥?Automotive Systems

鈥?Printers

鈥?Critical Microprocessor Power Monitoring

Product Pin Configuration

MR

1

2

3

4

8

7

6

5

WDO

RESET

WDI

PFO

MR

V

CC

GND

PFI

1

2

3

4

8

7

6

5

WDO

RESET

WDI

PFO

MR

V

CC

GND

PFI

1

2

3

4

8

7

6

5

PI74S707

PI74S708

PI74S708T

PI74S708S

PI74S708R

RESET

RESET

NC

PFO

V

CC

GND

PFI

PI74S705

PI74S706

PI74S706T

PI74S706S

PI74S706R

PI74S813L

PI4S706H

PI4S706TH

PI4S706SH

PI4S706P

Top View

1

PS8703

09/23/03

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PI4S706R相關(guān)型號(hào)PDF文件下載

• 型號(hào)
  版本
  描述
  廠商
  下載
• PI4S705
  英文版
  Supervisory Circuits | 4.63V Reset Active Low Supervisor
  ETC
  PI4S705
• PI4S706
  英文版
  Supervisory Circuits | 4.38V Reset Active Low Supervisor
  ETC
  PI4S706
• PI4S707
  英文版
  Supervisory Circuits | 4.63V Reset Active Low/High Superviso...
  ETC
  PI4S707
• PI4S708
  英文版
  Supervisory Circuits | 4.63V Reset Active Low/High Superviso...
  ETC
  PI4S708
• PI4S706H
  英文版
  Supervisory Circuits | 4.38V Reset Active High Supervisor
  ETC
  PI4S706H
• PI4S706P
  英文版
  Supervisory Circuits | 2.63V Reset Active High Supervisor
  ETC
  PI4S706P
• PI4S706R
  英文版
  Supervisory Circuits | 2.63V Reset Active Low Supervisor
  ETC
  PI4S706R
• PI4S706S
  英文版
  Supervisory Circuits | 2.93V Reset Active Low Supervisor
  ETC
  PI4S706S
• PI4S706T
  英文版
  Supervisory Circuits | 3.08V Reset Active Low Supervisor
  ETC
  PI4S706T
• PI4S708R
  英文版
  Supervisory Circuits | 2.63V Reset Active Low/High Superviso...
  ETC
  PI4S708R
• PI4S708S
  英文版
  Supervisory Circuits | 2.93V Reset Active Low Supervisor
  ETC
  PI4S708S
• PI4S708T
  英文版
  Supervisory Circuits | 3.08V Reset Active Low/High Superviso...
  ETC
  PI4S708T
• PI4S813L
  英文版
  Supervisory Circuits | 4.63V Reset Active High Supervisor
  ETC
  PI4S813L
• PI4S706SH
  英文版
  Supervisory Circuits | 2.93V Reset Active High Supervisor
  ETC
  PI4S706SH
• PI4S706TH
  英文版
  Supervisory Circuits | 3.08V Reset Active High Supervisor
  ETC
  PI4S706TH

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• PI4S706P
• PI4S706H
• PI4S706

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