MAX698 查看數據表（PDF） - Maxim Integrated

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MAX698

Low-Cost, Power-On Reset and Watchdog Controllers

Maxim Integrated 

Low-Cost, Power-On Reset

and Watchdog Controllers

ABSOLUTE MAXIMUM RATINGS

VCC ........................................................................-0.3V to +6.0V

Input Voltage (with respect to GND)

WDI, WDO, RESET, RESET ..…………………………-0.3V to VCC

Operating Temperature Range

C Suffix………………………………………………0°C to +70°C

E Suffix ......……………………………………….-40°C to +85°C

Rate of Rise, VCC .................………………………………100V/µs

Power Dissipation (TA = +70°C)

8-Pin PDIP (derated 5mW/°C above +70°C).....………400mW

16-Pin SO (derated 7mW/°C above +70°C) ................600mW

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VCC = +5V, TA = +25°C, unless otherwise noted.)

PARAMETER

Operating Voltage Range

Supply Current

Power-Up Reset Deassertion

Power-Up Reset Assertion

Hysteresis

Reset Output Pulse Width

RESET OUTPUT (Open Drain)

RESET OUTPUT (SO Package

Only)

WDO Output (MAX699 SO

Package Only)

MAX699 Watchdog Timeout

Period

TA = full

TA = full

TA = full

Output low

Output high

Output low

Output high

Output low

Output high

MAX699 Minimum WDI Input

Pulse Width

MAX699 WDI Input Threshold

MAX699 WDI Input Current

VCC = +5V

WDI = VCC

WDI = 0V

CONDITIONS

ISINK = 1.6mA, VCC = 4.4V

ISOURCE = 1µA, VCC = 5V

ISINK = 1.6mA, VCC = 5V

ISOURCE = 1µA, VCC = 4.4V

ISINK = 1.6mA, VCC = 5V

ISOURCE = 1µA, VCC = 4.4V

Locic-low

Logic-high

MIN TYP MAX UNITS

3.0

5.5

V

5

mA

4.50 4.65 4.75

V

4.4

V

40

mV

140

500

ms

0.4

V

3.5

0.4

V

3.5

0.4

V

3.5

1.00 1.6 2.25

s

200

ns

0.8

V

3.8

20

50

µA

-50

-15

2 _______________________________________________________________________________________

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