DS1624 Datasheet, PDF (14/16 Pages) Dallas Semiconductor – Digital Thermometer and Memory

DS1624
AC ELECTRICAL CHARACTERISTICS (-55°C to +125°C; V_DD=2.7V to 5.5V)
PARAMETERS SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Temperature
T_TC
Conversion Time
400 1000 ms
NV Write Cycle
Time
t_WR
0°C to 70°C
10
50
ms
9
SLK Clock
Frequency
f_SCL
Fast Mode
0
Standard Mode
0
400 KHz
100
Bus Free Time
t_BUF
Fast Mode
1.3
µs
Between a
Standard Mode
4.7
STOP and START
Condition
Hold Time
(Repeated)
t_HD:STA
Fast Mode
0.6
Standard Mode
4.0
µs
5
START Condition
Low Period of
t_LOW
Fast Mode
1.3
µs
SCL Clock
Standard Mode
4.7
High Period of
t_HIGH
Fast Mode
0.6
µs
SCL Clock
Standard Mode
4.0
Setup Time for a
t_SU:STA
Fast Mode
0.6
µs
Repeated
Standard Mode
4.7
START Condition
Data Hold Time
t_HD:DAT
Fast Mode
0
Standard Mode
0
0.9
µs
6
Data Setup Time
t_SU:DAT
Fast Mode
100
Standard Mode 250
ns
7
Rise Time of both
SDA and
t_R
Fast Mode 20+0.1C_B
Standard Mode
300
ns
8
1000
SCL Signals
Fall Time of both
SDA and
t_F
Fast Mode 20+0.1C_B
Standard Mode
300
ns
8
300
SCL Signals
Setup Time for
t_SU:STO
Fast Mode
0.6
µs
STOP
Standard Mode
4.0
Condition
Capacitive Load
C_b
for each Bus
400
pF
Line
All values referred to V _IH=0.9 V_DD and V_IL=0.1 V_DD.
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