DS1855 DALLAS [Dallas Semiconductor], DS1855 Datasheet - Page 14

• Manufacturer Part Number: DS1855
• Description: Dual Nonvolatile Digital Potentiometer and Secure Memory
• Manufacturer: DALLAS [Dallas Semiconductor]

AC ELECTRICAL CHARACTERISTICS
NONVOLATILE MEMORY CHARACTERISTICS
SCL Clock Frequency
Bus Free Time Between
STOP and START
Hold Time (repeated)
START Condition
Low Period of SCL
Clock
High Period of SCL
Clock
Data Hold Time
Data Set-Up Time
Start Set-Up Time
Rise Time of Both SDA
and SCL Signals
Fall Time of Both SDA
and SCL Signals
Set-Up Time for STOP
Condition
Capacitive Load for
Each Bus Line
EEPROM Write Time
Writes
PARAMETER
PARAMETER
SYMBOL
SYMBOL
t
t
t
t
t
HD:DAT
HD:STA
SU:DAT
SU:STA
SU:STO
t
t
f
t
HIGH
LOW
T
C
BUF
SCL
t
t
R
F
W
B
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
Standard Mode
CONDITION
CONDITION
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
Fast Mode
+85
°
C
14 of 20
(-40°C to +85°C, V
20+0.1C B
20+0.1C B
50,000
MIN
MIN
100
250
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0.6
4.0
0
0
0
0
TYP
TYP
2.5
MAX
1000
400
100
300
300
300
400
0.9
0.9
10
MAX
CC
= 2.7V to 5.5V)
UNITS
kHz
ms
pF
ms
ms
ms
ms
ms
ms
ms
ns
ns
ns
UNITS
NOTES
4,5
4,6
4
4
4
4
4
4
4
7
7
8