1 of 13

052400

FEATURES

Records the total time that the Event Input has

been active and the number of events that

have occurred

Elapsed Time Counter to monitor event

durations with quarter second resolution

Built in 32 bit non-volatile Total Time

Accumulator Register (34 years)

Non-volatile 17-bit Event Counter records the

total number of times an event has occurred

Programmable 32 bit non-volatile alarm trip

point to trigger Alarm# output

Alarm# output to alert the user that the total

accumulated time limit has been reached

Calibrated, Temperature Compensated RC

time base (accurate to 1% typ)

Stores the contents of the Elapsed Time

Counter with the previous total and

increments the event counter at the end of

each event or power down

Reset Enable bit to allow the device to be

cleared to zero, if desired

10 bytes of write protectable EEPROM user

memory

Write Disable bit to prevent the memory from

being changed or erased

Anti-Glitch filter will prevent noise spikes

from triggering false events on the Event

Input

2-wire serial communication

Wide power supply range (2.5V – 5.5V)

PIN ASSIGNMENT

PIN DESCRIPTION

EVENT

- Event Input

ALARM

- Alarm Output

GND

- Ground

SDA

- 2-wire Data Input/Output

SCL

- 2-wire Clock Input

- Voltage Supply

N/C

- No Connect

ORDERING INFORMATION

DS1682

8-Pin

µSOP

DS1682S

8-Pin SOIC (150 mil)

DS1682X

6-Pin Flip Chip Package

** For more information of Flip Chip Packaging,

Chip Package Data Index.

DESCRIPTION

The DS1682 is an integrated elapsed time recorder that will provide the total amount of time that an event

is/has been active since the DS1682 was last reset to zero via the 2-wire bus. When the total time

accumulated is equal to the preset alarm trip point and the polarity bit is set to a zero, the Alarm# output

will become active to alert the user, or with the polarity bit set to a one, the Alarm# output will become

inactive when the values match. This is ideal for applications such as monitoring the total amount of time

that something is turned on or in operation, how long something has been used, or the total number of

uses since the last calibration or repair.

DS1682

Total Elapsed Time Recorder with Alarm

www.dalsemi.com

SDA

1

SCL

EVENT

4

3

2

GND

Vcc

6

5

ALARM

Bottom View

DS1682X 6-pin Flip Chip

SDA

1

SCL

EVENT

6

3

2

GND

Vcc

8

4

5

7

N/C

N/C

ALARM

Top View

DS1682S 8-Pin SOIC (150 mil)

PRELIMINARY