ISL29028A
I 2 C Electrical Specifications
(Note 13). (Continued)
For SCL and SDA unless otherwise noted, V DD = 3V, T A = +25°C, R EXT = 499k ? 1% tolerance
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
t HD:DAT
t SU:DAT
Data Hold Time
Data Set-up Time
30
100
ns
ns
t R
t F
t SU:STO
t BUF
C b
R pull-up
t VD;DAT
t VD:ACK
V nL
V nH
Rise Time of both SDA and SCL Signals
Fall Time of both SDA and SCL Signals
Set-up Time for STOP Condition
Bus Free Time Between a STOP and START
Condition
Capacitive Load for Each Bus Line
SDA and SCL System Bus Pull-up Resistor
Data Valid Time
Data Valid Acknowledge Time
Noise Margin at the LOW Level
Noise Margin at the HIGH Level
(Note 14)
(Note 14)
Maximum is determined by t R and t F
20 + 0.1xC b
20 + 0.1xC b
600
1300
1
0.1VDD
0.2VDD
400
0.9
0.9
ns
ns
ns
ns
pF
k Ω
μs
μs
V
V
NOTES:
13. All parameters in I 2 C Electrical Specifications table are guaranteed by design and simulation.
14. Cb is the capacitance of the bus in pF.
FIGURE 1. I 2 C TIMING DIAGRAM
5
FN7721.3
January 29, 2014
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