SMR101

Preliminary Information

Summit Microelectronics, Inc

209

1 2.1 4/21/2005

6

(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)

Symbol

Parameter

Notes

Min.

Typ.

Max

Unit

0.80

1

1.20

ms

20

25

30

ms

80

100

120

ms

Reset Output Timeout period

Programmed Default = 100ms

160

200

240

ms

4.41

4.5

4.59

V

4.16

4.25

4.34

V

2.91

2.97

3.03

V

2.75

2.81

2.87

V

2.64

2.7

2.76

V

2.5

2.55

2.6

V

2.38

2.43

2.48

V

Voltage Monitor Threshold

1

Programmed Default = 2.97V

2.25

2.3

2.35

V

0.10

0.125

0.15

s

0.20

0.25

0.30

s

0.40

0.5

0.60

s

0.80

1

1.20

s

1.60

2

2.40

s

3.20

4

4.80

s

6.40

8

9.60

s

Programmable Reset Hold-

Down Delay times (soft reset)

Programmed Default = 0.25s

8

10

12

s

0.40

0.5

0.60

s

0.80

1

1.20

s

1.60

2

2.40

s

3.20

4

4.80

s

6.40

8

9.60

s

12.80

16

19.20

s

25.60

32

38.40

s

Programmable Reset Hold-

Down Delay times (hard reset)

Programmed Default = 4s

32

40

48

s

Note 1 - Voltage monitor threshold accuracies are relative to factory programmed setting, deviation from this setting can

result in errors exceeding those stated above.

AC OPERATING CHARACTERISTICS