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DS1683_12 Datasheet, PDF (3/21 Pages) Maxim Integrated Products – Total-Elapsed-Time and Event Recorder with Alarm
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DS1683
Total-Elapsed-Time and Event Recorder with Alarm
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)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SCL Clock Frequency
Bus Free Time Between STOP
and START Conditions
fSCL
tBUF
400
kHz
1.3
Fs
Hold Time (Repeated) START
Condition
tHD:STA
0.6
Fs
Low Period of SCL
High Period of SCL
Data Hold Time
Data Setup Time
START Setup Time
SDA and SCL Rise Time
SDA and SCL Fall Time
STOP Setup Time
SDA and SCL Capacitive
Loading
tLOW
tHIGH
tHD:DAT
tSU:DAT
tSU:STA
tR
(Note 3)
tF
tSU:STO
CB
(Note 3)
(Note 3)
1.3
0.6
0
100
0.6
20 +
0.1CB
20 +
0.1CB
0.6
Fs
Fs
0.9
Fs
ns
Fs
300
ns
300
ns
Fs
400
pF
EEPROM Write Time
tW
(Notes 4, 5, 6)
10
20
ms
NONVOLATILE MEMORY CHARACTERISTICS
(VCC = 2.5V to 5.5V, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
EEPROM Write Cycles
EEPROM Write Cycles (4 Banks)
TA = +70NC (Note 7)
TA = +70NC (Note 8)
50,000
200,000
Writes
Writes
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.
Maxim Integrated
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