NCP1232DR2 查看數據表（PDF） - ON Semiconductor

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NCP1232DR2

Microprocessor Monitor

ON Semiconductor 

NCP1232

ABSOLUTE MAXIMUM RATINGS* Voltage on any pin (with respect to GND) -0.3 V to +5.8 V

Rating

Value

Unit

Operating Temperature Range

-40 to +85

°C

Storage Temperature Range, Tstg

Lead Temperature (Soldering, 10 sec)

-65 to +150

°C

+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.

DC ELECTRICAL CHARACTERISTICS (TA = TMIN to TMAX; VCC = +4.5 V to 5.5 V, unless otherwise specified.)

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Unit

Supply Voltage

ST and PB RST Input High Level

ST and PB RST Input Low Level

Input Leakage ST, TOL

Output Current RST

Current RST, RST

Operating Current

VCC 5% Trip Point (Note 3)

VCC 10% Trip Point (Note 3)

VCC

VIH

VIL

IL

IOH

IOL

ICC

VCCTP

VCCTP

-

Note 1

-

-

VOH = 2.4 V

VOL = 0.4 V

Note 2

TOL = GND

TOL = VCC

4.5

5.0

5.5

V

2.0

-

VCC +0.3

V

-0.3

-

+0.8

V

-1.0

-

+1.0

mA

-1.0

-12

-

mA

2.0

10

-

mA

-

50

200

mA

4.50

4.62

4.74

V

4.25

4.37

4.49

V

CAPACITANCE (Note 4) (TA = +25°C)

Characteristic

Input Capacitance ST, TOL

Output Capacitance RST, RST

Symbol

CIN

COUT

Test Conditions

-

-

Min

Typ

Max

Unit

-

-

5.0

pF

-

-

7.0

pF

AC ELECTRICAL CHARACTERISTICS (TA = TMIN to TMAX; VCC = +5.0 V to "10%, unless otherwise specified.)

Characteristic

Symbol

Test Conditions

Min

Typ

Max

PB RST (Note 5)

PB RST Delay

Reset Active Time

ST Pulse Width

ST Time-out Period

VCC Fall Time (Note 4)

VCC Rise Time (Note 4)

VCC Detect to RST High and RST Low

VCC Detect to RST High and RST Open

(Note 6)

tPB

tPBD

tRST

tST

tTD

tF

tR

tRPD

tRPU

Figure 3

20

Figure 3

1.0

-

250

Figure 4

20

Figure 4

TD Pin = 0 V

62.5

TD Pin = Open

250

TD Pin = VCC

500

Figure 5

10

Figure 6

0

Figure 7, VCC Falling

-

Figure 8, VCC Rising

250

-

4.0

610

-

150

600

1200

-

-

-

610

-

20

1000

-

250

1000

2000

-

-

100

1000

1. PB RST is internally pulled up to VCC with an internal impedance of typically 40 kW.

2. Measured with outputs open.

3. All voltages references to GND.

4. Guaranteed by design.

5. PB RST must be held low for a minimum of 20 msec to guarantee a reset.

6. tR = 5 msec.

Unit

msec

msec

msec

nsec

msec

msec

msec

nsec

msec

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