DS1621
AC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; VDD = 2.7V to 5.5V)
PARAMETER
Temperature
Conversion Time
NV Write Cycle
Time
SYMBOL CONDITION
MIN
TYP MAX UNITS NOTES
TTC
750
ms
tWR
fSCL
tBUF
0°C to 70°C
4
10
ms
10
SCL Clock
Fast Mode
Standard Mode
Fast Mode
0
400
100
KHz
µs
Frequency
0
Bus Free Time
Between a STOP
and START
1.3
4.7
Standard Mode
Condition
Hold Time
tHD:STA
Fast Mode
0.6
4.0
µs
5
(Repeated) START
Condition
Standard Mode
Low Period of SCL
Clock
TLOW
THIGH
tSU:STA
Fast Mode
Standard Mode
Fast Mode
1.3
4.7
0.6
4.0
0.6
4.7
µs
µs
µs
High Period of SCL
Clock
Standard Mode
Fast Mode
Setup Time for a
Repeated START
Condition
Standard Mode
Data Hold Time
tHD:DAT
tSU:DAT
tR
Fast Mode
Standard Mode
Fast Mode
0
0
0.9
µs
ns
ns
6, 7
8
Data Setup Time
100
Standard Mode
Fast Mode
250
20+0.1CB
Rise Time of Both
SDA and SCL
Signals
300
9
Standard Mode
1000
Fall Time of both
SDA and SCL
Signals
tF
Fast Mode
20+0.1CB
300
300
ns
9
Standard Mode
Setup time for
STOP Condition
Capacitative Load
for each Bus Line
tSU:STO
Cb
Fast Mode
0.6
4.0
µs
pF
Standard Mode
400
All values referred to VIH=0.9 VDD and VIL=0.1 VDD.
AC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; VDD = 2.7V to 5.5V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
CI
5
pF
15 of 16
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
