DS1683

Total-Elapsed-Time and Event Recorder with Alarm

4

Maxim Integrated

Pin Configuration

Pin Description

PIN

NAME

FUNCTION

1

EVENT

Event Input. The EVENT pin controls when the values in the Elapsed Time Counter (ETC) register and

the Event Counter register are incremented. The EVENT pin also determines when the data in these

registers is stored to EEPROM.

2, 7

N.C.

No Connection. These pins are not connected internally.

3

ALARM

Alarm Output. The ALARM pin is an open drain structure, and is set active when an alarm condition is

met. The active state of this pin is controlled by the ALRM POL bit located in the Configuration register.

Once the ALARM pin is active, it will remain active until the alarm condition is cleared and the CLR

ALM bit in the Command register is set.

4

GND

Ground

5

SCL

channel. The SCL pin is an input that requires an external pull-up resistor.

6

SDA

munications channel. The SDA pin is an open-drain I/O, which requires an external pullup resistor.

8

+2.5V to +5.5V Input Supply

EVENT

+

N.C.

ALARM

1

2

3

4

8

7

6

5

GND

N.C.

SDA

SCL

SO

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DS1683