ISL88705(2006) データシートの表示（PDF） - Intersil

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ISL88705
(Rev.:2006)

µP Supervisor with Watchdog Timer, Power-Fail Comparator, Manual Reset and Adjustable Power-On Reset

Intersil 

ISL88705, ISL88706, ISL88707, ISL88708, 8SL88716, ISL88813

generation capability via the CPOR pin with an external

capacitor to GND. This evaluation platform has an adjustable

SMD capacitor, C4 (8pF to 45pF) that allows easy evaluation

of this feature. Also unique to the ISL88707 and ISL88708

VDD

are both the RESET and RESET outputs, all other variants

having only one or the other.

Figures 10, 11, 12, 13 and 14 illustrate the basic IC functions

and performance of the 3 implementations.

RESET

RESET

VDD

RESET

tPOR = 213ms

RESET

CPOR = OPEN

FIGURE 12. RESET AND RESET DEASSERTION

PFO

FIGURE 10. RESET AND RESET ASSERTION

VDD

PFI Vth

PFI

OPEN

172ms

RESET

15pF

588ms

4.7pF

312ms

33pF

1.1s

50pF

1.5s

FIGURE 11. RESET ASSERTION vs CPOR

FIGURE 13. 5V PFI TO PFO RESPONSE

5.5V OV

VDD

RESET

FIGURE 14. 5V OV/UV MONITORING

10

FN8092.3

December 6, 2006

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