TC1270/TC1271

DS21381B-page 2

© 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

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

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.

TC1270/TC1271 ELECTRICAL SPECIFICATIONS

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

1.2

—

5.5

V

Supply Current

—

—

—

7

10

6

15

15

12

µAV

Reset Threshold

4.54

4.50

4.30

4.25

3.03

3.00

2.88

2.85

2.58

2.55

1.71

1.70

4.63

—

4.38

—

3.08

—

2.93

—

2.63

—

1.75

—

4.72

4.75

4.46

4.50

3.14

3.15

2.98

3.00

2.68

2.70

1.79

1.80

V

Reset Threshold Tempco

—

30

—

ppm/°C

—

—

20

5

—

—

µsec

Reset Active Timeout Period

140

280

560

msec

MR Minimum Pulse Width

10

—

—

µsec

MR Glitch Immunity

—

0.1

—

µsec

MR to Reset Propagation Delay

—

0.5

—

µsec

MR Input Threshold

2.3

—

—

—

—

0.8

TC127_L/M

—

—

—

—

TC127_R/S/T/F

MR Pull-up Resistance

10

20

40

k

Ω

Note

1:

2:

RESET output for TC1270, RESET output for TC1271.