ASM1232LP/LPS

5 of 10

Notice: The information in this document is subject to change without notice

5V µP Power Supply Monitor and Reset Circuit

January 2005

rev 1.5

Absolute Maximum Ratings

DC Electrical Characteristics

voltages are referenced to ground.

Parameter

Min

Max

Unit

-0.5

7

V

Voltage on ST, TD

-0.5

V

Voltage on PBRST, RESET, RESET

-0.5

V

Operating Temperature Range (N suffixed devices)

-40

+85

°C

Operating Temperature Range (others)

0

70

°C

Soldering Temperature (for 10 sec)

+260

°C

Storage Temperature

-55

+125

°C

ESD rating

HBM

MM

2

200

KV

V

Note:

1. Voltages are measured with respect to ground

2. These are stress ratings only and functional implication is not implied. Exposure to absolute maximum ratings for extended

periods may affect device reliability.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Supply Voltage

4.5

5.5

V

ST and PBRST Input High Level

2

V

ST and PBRST Input Low Level

-0.3

0.8

V

4.50

4.62

4.74

V

4.25

4.37

4.49

V

Watchdog Timeout Period

62.5

150

250

ms

Watchdog Timeout Period

500

1200

2000

ms

Watchdog Timeout Period

250

610

1000

ms

Output Voltage

I=-500µA, Note 3

V

Output Current

Output = 2.4V, Note 2

-8

-10

mA

Output Current

Output = 0.4V

10

mA