TC1270/TC1271

DS21381D-page 2

© 2007 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

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

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

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

† Stresses above 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

above those indicated in the operation sections of the

specifications is not implied. Exposure to Absolute

Maximum Rating conditions for extended periods may

affect device reliability.

ELECTRICAL SPECIFICATIONS

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

1.2

—

5.5

V

Supply Current

—

7

15

µA

—10

15

µA

—6

12

µA

Reset Threshold

4.54

4.50

4.63

—

4.72

4.75

V

V

4.30

4.25

4.38

—

4.46

4.50

V

V

3.03

3.00

3.08

—

3.14

3.15

V

V

2.88

2.85

2.93

—

2.98

3.00

V

V

2.58

2.55

2.63

—

2.68

2.70

V

V

1.71

1.70

1.75

—

1.79

1.80

V

V

Reset Threshold Tempco

—

30

—

ppm/°C

—

—

20

5

—

—

µs

L/M/R/S/T/F

Reset Active Time-out Period

140

280

560

ms

MR Minimum Pulse Width

10

—

—

µs

MR Glitch Immunity

—

0.1

—

µs

MR to Reset Propagation Delay

—

0.5

—

µs

MR Input Threshold

2.3

—

—

V

——

V

——

0.8

V

—

—

V

MR Pull-up Resistance

10

20

40

k

Ω

Reset Output Voltage High

(TC1271)

——

V

Note 1:

2:

RESET output for TC1270, Reset output for TC1271.