MAX6862UK225(2004) 查看數據表（PDF） - Maxim Integrated

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MAX6862UK225
(Rev.:2004)

Nanopower µP Supervisory Circuits with Manual Reset and Watchdog Timer

Maxim Integrated 

Nanopower µP Supervisory Circuits with

Manual Reset and Watchdog Timer

VCC

MR

(MAX6854/MAX6855/MAX6856/

MAX6861–MAX6869)

WDI

(MAX6864–MAX6869)

VCC

10kΩ

Figure 1. Functional Diagram

MAX6854

MAX6855

MAX6856

MAX6858

MAX6860–

MAX6869

RESET

TIMEOUT

GENERATOR

1.25V

WATCHDOG

TRANSITION

DETECTOR

WATCHDOG

TIMER

GND

RESET

(MAX6854/MAX6856/MAX6858/

MAX6860/MAX6861

MAX6863/MAX6864/MAX6866/

MAX6867/MAX6869)

RESET

(MAX6855/MAX6862/MAX6865/

MAX6868)

CT

(MAX6861/MAX6862/MAX6863)

VCC

tRP

RESET*

tRP

tMRD

tMPW

MR

*RESET IS THE INVERSE OF RESET.

Figure 2. RESET Timing Relationship

10 ______________________________________________________________________________________

VTH

tRD

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