SMS44S Ver la hoja de datos (PDF) - Summit Microelectronics

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componentes Descripción

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SMS44S

Highly Programmble Voltage Supervisory Circuit

Summit Microelectronics 

SMS44

Symbol

Parameter

tPWDTO

Programmable watchdog

timer period

tPLDTO

Programmable longdog

timer period

tPDLYX

Programmable delay from

VPTH to PUP# out

IMR

TMR

TDMRRST

MR# pullup current

MR# input pulse width

Delay from MR# low to

RESET# low

VIL MR# input threshold

VIH

WD2

0

0

1

1

1

1

Notes

WD1

0

1

0

0

1

1

LD1

0

0

1

1

PUP#X-1

0

0

1

1

WD0

0

1

0

1

0

1

LD0

0

1

0

1

PUP#X-0

0

1

0

1

Min.

280

560

1120

2240

4480

1120

2240

4480

50

Typ.

OFF

400

800

1600

3200

6400

OFF

1600

3200

6400

OFF

25

50

100

100

100

0.7 × VCC

Max. Unit

520

1040

2080 ms

4160

8320

2080

4160 ms

8320

ms

µA

ns

ns

0.6

V

V

2047 Elect TableB 2.0

2047 2.3 10/23/00

SUMMIT MICROELECTRONICS, Inc.

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