DS1708T Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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DS1708T

3.3 and 5.0 Volt MicroMonitor

Dallas Semiconductor -> Maxim Integrated 

DS1707/DS1708

TIMING DIAGRAM: PUSHBUTTON RESET Figure 4

PBRST

tPDLY

tPB

VIL

RST

RST

VIH

tRST

VOH

VOL

NON–MASKABLE INTERRUPT CIRCUIT EXAMPLE Figure 5

VSENSE

R1

R2

PBRST

VCC

GND

IN

DS1708

RST

RST

NC

NMI

TO µP

VSENSE

+

R1 ) R2

R2

x

1.25

VMAX

+

VSENSE

VTP

x

VCC

Example: VSENSE = 4.70 volts at the trip point

VCC = 3.3 volts

10KΩ = R2

Therefore:

4.70

1.25

x 3.3 + 12.4 volts maximum

4.5

+

R1 ) 10K

10K

x

1.25

R1 + 27.6KW

010996 4/9

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