DS1232LP/LPS

062698 7/7

AC ELECTRICAL CHARACTERISTICS

(0

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

20

ms

RESET Active Time

250

610

1000

ms

ST Pulse Width

20

ns

6, 9

50

175

µs

300

µs

Inactive

250

610

1000

ms

4

0

ns

PBRST Stable Low to RST and

RST

20

ms

NOTES:

1. All voltages referenced to ground.

2. Measured with outputs open and ST and PBRST within 0.5V of supply rails.

5. RST is an open drain output.

8. Measured with outputs open and ST and PBRST at TTL levels.

9. Watchdog can not be disabled. It must be strobed to avoid resets.

MARKING INFORMATION:

8–pin DIP – “DS1232L”

16–pin SOIC – “DS1232L”

8–pin SOIC – “DS1232L”

8–pin

µ–SOP – “1232”