Datasheet

DS1683
Total-Elapsed-Time and Event Recorder with Alarm
4Maxim 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
I
2
C Serial-Clock Input. The SCL pin is the serial-clock input for the I
2
C synchronous communications
channel. The SCL pin is an input that requires an external pull-up resistor.
6 SDA
I
2
C Serial-Data Input/Output. The SDA pin is the data input/output signal for the I
2
C synchronous com-
munications channel. The SDA pin is an open-drain I/O, which requires an external pullup resistor.
8 V
CC
+2.5V to +5.5V Input Supply
EVENT
+
N.C.
ALARM
1
2
3
4
8
7
6
5GND
V
CC
N.C.
SDA
SCL
SO
TOP VIEW
DS1683