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MB3793-30A

Power Voltage Monitoring IC with Watchdog Timer Datasheet

Cypress Semiconductor 

MB3793-30A

6. Recommended Operating Conditions

Parameter

Power supply voltage

Reset (RESET) output current

Power-on reset hold time setting

capacity

Watchdog-timer monitoring time

setting capacity*

Operating ambient temperature

Symbol

VCC

IOL

IOH

CTP

CTW

Ta

Conditions

−

−

−

−

Min

1.2

0

−5

0.001

−

0.001

−

−40

Value

Typ

3.3

—

—

0.1

0.01

+25

Max

6.0

+5

0

10

1

+85

Unit

V

mA

μF

μF

°C

* : The watchdog timer monitor time range depends on the rating of the setting capacitor.

WARNING:

1. The recommended operating conditions are required in order to ensure the normal operation of the

semiconductor device. All of the device's electrical characteristics are warranted when the device is operated

under these conditions.

2. Any use of semiconductor devices will be under their recommended operating condition.

3. Operation under any conditions other than these conditions may adversely affect reliability of device and could

result in device failure.

4. No warranty is made with respect to any use, operating conditions or combinations not represented on this data

sheet. If you are considering application under any conditions other than listed herein, please contact sales

representatives beforehand.

7. Electrical Characteristics

7.1 DC Characteristics

(VCC = +3.3 V, Ta = +25°C)

Parameter

Symbol

Conditions

Power supply current

Detection voltage

ICC

After exit from reset

VSL

VCC falling Ta = +25°C

Ta = −40°C to +85°C

VSH

VCC rising

Ta = +25°C

Ta = −40° C to +85°C

Detection voltage hysteresis

difference

VSHYS

VSH – VSL

Clock-input threshold voltage

VCIH

CK rising

VCIL

CK falling

Clock-input hysteresis

VCHYS

−

Inhibition-input voltage

VIIH

−

Input current

(CK1, CK2, INH)

VIIL

−

IIH

VCK = 5 V

IIL

VCK = 0 V

−

2.93

(2.89)*

3.00

(2.96)*

30

(0.7)*

0.5

(0.1)*

2.2

0

−

−1.0

Value

31

3.00

3.00

3.07

3.07

70

45

3.07

(3.11)*

3.14

(3.18)*

110

1.3

1.0

0.3

−

−

0

0

1.9

(1.5)*

(0.6)*

VCC

0.8

1.0

−

Unit

μA

V

V

mV

V

V

V

V

μA

μA

Document Number: 002-08554 Rev. *C

Page 6 of 25

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