DS1683STR datasheet(3/21 Pages) MAXIM

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DS1683

Total-Elapsed-Time and Event Recorder with Alarm

Maxim Integrated

Note 1: All voltages are referenced to ground. Currents entering the IC are specified as positive; currents exiting the IC are specified

as negative.

Note 2: Guaranteed by design.

Note 3: CB: Total capacitance of one bus line in pF.

Note 4: EEPROM write time begins after a STOP condition occurs.

Note 5: A decoupling capacitor to supply high instantaneous currents during EEPROM writes is recommended. A typical value is

0.01FF. VCC must be maintained above VCC(MIN), including transients, during EEPROM writes.

Note 6: VCC must be at or above 2.5V for tW after the end of an event to ensure data transfer to the EEPROM.

Note 7: Memory locations to which this specification applies: User Memory, ETC Alarm Limit, Event Counter Alarm Limit,

Configuration, Password Value.

Note 8: Memory locations to which this specification applies: Event Counter register, ETC register.

I2C AC ELECTRICAL CHARACTERISTICS

(VCC = 2.5V to 5.5V, TA = -40NC to +85NC, timing referenced to VIL(MAX) and VIH(MIN), unless otherwise noted.) (Figure 7)

NONVOLATILE MEMORY CHARACTERISTICS

(VCC = 2.5V to 5.5V, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SCL Clock Frequency

fSCL

400

kHz

Bus Free Time Between STOP

and START Conditions

tBUF

1.3

Hold Time (Repeated) START

Condition

tHD:STA

0.6

Low Period of SCL

tLOW

1.3

High Period of SCL

tHIGH

0.6

Data Hold Time

tHD:DAT

0.9

Data Setup Time

tSU:DAT

100

START Setup Time

tSU:STA

0.6

SDA and SCL Rise Time

(Note 3)

20 +

0.1CB

300

SDA and SCL Fall Time

(Note 3)

20 +

0.1CB

300

STOP Setup Time

tSU:STO

0.6

SDA and SCL Capacitive

(Note 3)

400

EEPROM Write Time

(Notes 4, 5, 6)

PARAMETER

SYMBOL

CONDITIONS

MIN

MAX

UNITS

EEPROM Write Cycles

TA = +70NC (Note 7)

50,000

Writes

EEPROM Write Cycles (4 Banks)

TA = +70NC (Note 8)

200,000

Writes

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