TC1272/TC1273/TC1274

DS21382B-page 2

 2003 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

Output Current, RESET, RESET ........................20 mA

3-Pin SOT-23B (derate 4 mW/°C above +70°C)

................................................................230 mW

Operating Temperature Range.............-40°C to +85°C

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

† Stresses above those listed under "Absolute Maximum Rat-

ings" may cause permanent damage to the device. These are

stress ratings only and functional operation of the device at

these or any other conditions above those indicated in the

operation sections of the specifications is not implied. Expo-

sure to Absolute Maximum Rating conditions for extended

periods may affect device reliability.

DC CHARACTERISTICS

Parameters

Sym

Min

Typ

Max

Units

Conditions

Supply Voltage

TC1272, TC1273

1.2

—

5.5

V

Note 1

TC1274

1.8

—

5.5

V

Output Voltage @ 0-500 µA

—

V

TC1272, TC1274 (Note 1)

Output Current @ 2.4 Volts

—10

—

mA

Note 2

—8

—

mA

Output Current @ 0.4 Volts

+10

30

—

mA

Note 2, Note 5

Operating Current

—17

40

µA

Note 3

—17

40

µA

Note 3

—

700

1200

µA

Note 3

4.50

4.62

4.75

V

Note 1

4.25

4.37

4.49

V

Note 1

4.00

4.12

4.24

V

Note 1

Output Capacitance

—9

—

pF

Internal Pull-Up Resistor

36

9

k

Ω

RESET Active Time

100

200

300

msec

TC1272, TC1273

—20

50

µsec

—20

50

µsec

300

—

—

µsec

Figure 4-2, Figure 4-4

0

—

—

nsec

Figure 4-1, Figure 4-3

TC1272, TC1273

100

200

300

msec

Note 4, Figure 4-1

100

200

300

msec

Note 4, Figure 4-3

Note 1: All voltages referenced to ground.

3: Measured with RESET output open for TC1272/TC1273; measured with RESET output open for TC1274.

5: A 1 k

Ω external resistor may be required in some applications for proper operation of the microprocessor reset control

circuit when using the TC1273.