7v to 5.5v) – Rainbow Electronics DS1852 User Manual
Page 21
DS1852
21 of 25
AC ELECTRICAL CHARACTERISTICS (-40°C to +100°C, V
CC
= 2.7V to 5.5V)
PARAMETER
SYMBOL CONDITIONS
MIN
TYP MAX UNITS NOTES
SCL Clock
Frequency
f
SCL
Fast Mode
Standard Mode
0
0
400
100
kHz
7
Bus Free Time
Between STOP and
START Condition
t
BUF
Fast Mode
Standard Mode
1.3
4.7
µs
7
Hold Time
(Repeated)
START Condition
t
HD:STA
Fast Mode
Standard Mode
0.6
4.0
µs
7, 8
Low Period of SCL
Clock
t
LOW
Fast Mode
Standard Mode
1.3
4.7
µs
7
High Period of SCL
Clock
t
HIGH
Fast Mode
Standard Mode
0.6
4.0
µs
7
Data Hold Time
t
HD:DAT
Fast Mode
Standard Mode
0
0
0.9
µs
7, 9, 10
Data Setup Time
t
SU:DAT
Fast Mode
Standard Mode
100
250
ns
7
Start Setup Time
t
SU:STA
Fast Mode
Standard Mode
0.6
4.7
µs
7
Rise Time of Both
SDA and SCL
Signals
t
R
Fast Mode
Standard Mode
20+0.1C
B
300
1000
ns
11
Fall Time of Both
SDA and SCL
Signals
t
F
Fast Mode
Standard Mode
20+0.1C
B
300
300
ns
11
Setup Time for STOP
Condition
t
SU:STO
Fast Mode
Standard Mode
0.6
4.0
µs
Capacitive Load for
Each Bus Line
C
B
400
pF
11
Startup Time
t
ST
2
ms
5
V
CC
Power-Up Rate
1
V/s
EEPROM Write
Time
t
W
10
20
ms
6
NONVOLATILE MEMORY CHARACTERISTICS
PARAMETER
SYMBOL CONDITIONS
MIN
TYP
MAX
UNITS NOTES
Writes
+85
°
C
50,000