DS1682 Datasheet, PDF (3/14 Pages) Dallas Semiconductor – Total Elapsed Time Recorder with Alarm

DS1682
Total-Elapsed-Time Recorder
with Alarm
AC Electrical Characteristics
(V_CC = 2.5V to 5.5V, T_A = -40°C to +85°C, unless otherwise noted.)
PARAMETER
EEPROM Endurance
EEPROM Write Time
EEPROM Transfer to RAM
ALARM Output Active-Low Pulse
Width
ALARM Output Active-High Pulse
Width
ALARM Input Pulled Low
and Released Pulse Width
SCL Clock Frequency
Bus Free Time Between a
STOP and START Condition
Hold Time (Repeated)
START Condition (Note 6)
Low Period of SCL
High Period of SCL
Setup Time for a Repeated
START
Data Hold Time (Notes 7, 8)
Data Setup Time (Note 9)
SYMBOL
E_E
t_EW
t_ER
t_SL
t_SH
t_SPL
f_SCL
t_BUF
t_HD:STA
t_LOW
t_HIGH
t_SU:STA
t_HD:DAT
t_SU:DAT
CONDITIONS
(Note 2)
(Notes 1, 3, 4)
(Notes 1, 5)
(Note 1)
(Note 1)
(Note 1)
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Rise Time of SDA and SCL
Signals (Note 10)
Fast mode
t_R
Standard mode
Fall Time of SDA and SCL
Signals (Note 10)
Setup Time for STOP
Input Capacitance
Capacitive Load for Each
Bus Line
Fast mode
t_F
Standard mode
t_SU:STO
C_I/O
C_B
Fast mode
Standard mode
(Note 1)
(Note 10)
MIN TYP MAX UNITS
50k writes
150 300
ms
1
ms
62.5
ms
437.5
ms
500
ms
400
kHz
100
1.3
µs
4.7
0.6
µs
4.0
1.3
µs
4.7
0.6
µs
4.0
0.6
µs
4.0
0
µs
0
100
ns
250
20 +
0.1C_B
20 +
0.1C_B
300
ns
1000
20 +
0.1C_B
20 +
0.1C_B
0.6
4.0
300
ns
300
µs
10
pF
400
pF
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