SP813MEU 데이터 시트보기 (PDF) - Exar Corporation

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SP813MEU

Low Power Microprocessor Supervisory Circuits

Exar Corporation 

WDI

MR

VCC

WATCHDOG

TRANSITION

DETECTOR

VCC

250µA

WATCHDOG

TIMER

TIMEBASE FOR

RESET AND

WATCHDOG

RESET

GENERATOR

WDO

RESET/RESET*

4.65V

(4.40V for the SP706 and SP813M)

PFI

PFO

1.25V

GND

Figure 2. Internal Block Diagram for the SP705/706/813L

SP705

SP706

SP813L

* For the SP813L only

VCC

250µA

MR

VCC

RESET

GENERATOR

4.65V

(4.40V for the SP708)

PFI

1.25V

GND

Figure 3. Internal Block Diagram for the SP707/708

RESET

RESET

PFO

SP707

SP708

June 2008 Rev C

SP705 Low Power Microprocessor Supervisory Circuits

5

© 2008 Exar Corporation

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