IDTTM/ICSTM Voltage Monitor/Watchdog Timer Circuit

1568—05/30/08

Advance Information

ICS9WDV3501B

Voltage Monitor/Watchdog Timer Circuit

6

Advance Information

Electrical Characteristics - Input/Supply/Common Output Parameters

Electrical Characteristics - Reset, WDI and Watchdog Timer Parameters

Absolute Maximum Ratings

(@ 25°C unless otherwise indicated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS Notes

Maximum Supply VoltageVDD

Supply Voltage4.6

V

Maximum Input Voltage

VMON

3.3V LVCMOS Inputs

-0.3

VDD + 0.3

V

Maximum Input Current

IIMAX

VDD or GND

200

mA

Maximum Output Current

IOMAX

Digital Output

200

mA

Maximum Power

Dissipation Current

PDMAX

Digital Output

500

mW

Storage Temperature

Ts

-

-65

150

°C

ESD protection

ESD prot

Human Body Model

2000

V

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS Notes

TambientC

Standard Part

0

70

°C

TambientI

Industrial Temp Version

-45

85

°C

Operating VoltageVDD

Supply Voltage

2.97

3.30

3.63

V

Operating Supply Current

IDD_3.3V

Iout = 1mA

2500

ΠA

Input High Voltage

VIHSE

All inputs except VMON

2

VDD + 0.3

V

1

Input Low Voltage

VILSE

All inputs except VMON

GND - 0.3

0.8

V

1

Input Leakage Current

IIN

VIN = VDD , VIN = GND

-5

5

ΠA

Ambient Operating Temp

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS Notes

VMON Input Threshold

VVMON

VMON input

0.96

1.00

1.04

V

VMON Input Hysteresis

VVMONHYST

VMON input

50

mV

RST0_DLY(1:0) = 00

40

50

60

ms

3

RST0_DLY(1:0) = 01

80

100

120

ms

3

RST0_DLY(1:0) = 10

160

200

240

ms

3

RST1_DLY(1:0) = 11

240

300

360

ms

3

WTB(1:0) = 00

0.80

1.00

1.20

ms

3

WTB(1:0) = 01

1.60

2.00

2.40

ms

3

WTB(1:0) = 10

4.00

5.00

6.00

ms

3

WTB(1:0) = 11

8.00

10.00

12.00

ms

3

WDI Input Pulse Width

WDIPW

VIL= 0.4V, VIH = 2.8V

100

ns

Output High Voltage

VOH

RESET outputs, Iout = 1mA

2,4

V

Output Low Voltage

VOL

RESET outputs, Iout =

16mA

0.7

V

Input Leakage Current

IIN

VIN = VDD , VIN = GND

-5

5

8A

TimeBase Frequency

Fosc

VDD = 3.3 V, Rp = 30k8

0.8

1

1.2

MHz

3

1. WDI pulse width limited to 150ns with these input thresholds

2. VMON Falling

3. Values over the entire industrial temp range -40°C to +80°C

Watchdog Timeout

WDTOUT

tRESET0,

tRESET1

Reset 0 & Reset 1

Timeout Delay