System Monitoring Oscillator with

Watchdog and Power Fail

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

10-Pin µMAX (derate 5.6mW/°C over +70°C) ..............444mW

8-Pin µMAX (derate 4.5mW/°C over +70°C) ................362mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

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

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

ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER REQUIREMENTS

Operating Supply Voltage

2.7

5.5

V

°C to +85°C

1.1

Valid RST/RST Supply Voltage

°C to +125°C

1.18

V

5.5

Operating Supply Current

4.5

mA

TRI-LEVEL ANALOG INPUTS: WDS1, WDS2

Input-High Voltage Level

V

Input-Middle Voltage Level

0.9

V

Input-Low Voltage Level

0.45

V

LOGIC INPUT: WDI

Input Leakage Current

Input high

0.5

µA

Logic-Input High Voltage

V

Logic-Input Low Voltage

V

PUSH-PULL LOGIC OUTPUTS: RST/RST

Output High

V

Output Low

0.05

0.4

V

OPEN-DRAIN LOGIC OUTPUTS: RST, PFO, WDO

Output Low

0.05

0.4

V

OUTPUT: CLOCK

Output High Voltage

V

Output Low Voltage

0.3

V

-2.75

+2.75

CLOCK Accuracy

-4

+4

%

Clock Frequency Temperature

Coefficient

140

400

ppm/°C

Clock Frequency Supply

Voltage Coefficient

0.67

1%/V

CLOCK Duty Cycle

(Note 2)

45

50

55

%