ASM1232LP/LPS

2 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

Pin Configuration

Pin Description

Pin #

8-Pin Package

Pin #

16-Pin Package

Pin

Name

Function

1

2

PBRST

Debounced manual pushbutton RESET input.

24

TD

36

TOL

trip point tolerance.

4

8

GND

Ground.

5

9

RESET

Active HIGH reset output. RESET is active:

2. If PBRST is LOW.

3. If ST is not strobed LOW before the timeout period set by TD expires.

4. During power-up.

6

11

RESET

Active LOW reset output. (See RESET).

713

ST

Strobe input.

815

5V power.

-

1,3,5,7,

10,12,14,16

NC

No internal connection.

1

2

3

4

5

6

7

8

PBRST

TD

TOL

GND

ST

RESET

RESET

1

2

3

4

5

6

7

8

PBRST

TD

TOL

GND

ST

RESET

RESET

ASM1232LPS

9

10

11

12

13

14

15

16

NC

NC

NC

NC

NC

NC

NC

NC

ASM1232LPU

DIP/SO/MicroSO

SO

ASM1232LP

ASM1232LPS-2