ISL29028 Datasheet, PDF (5/15 Pages) Intersil Corporation – Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt

ISL29028
I2C Electrical Specifications For SCL and SDA unless otherwise noted, V_DD = 3V, T_A = +25°C, R_EXT = 499kΩ 1%
tolerance (Note 9). (Continued)
PARAMETER
DESCRIPTION
CONDITION
MIN TYP MAX UNIT
t_BUF
Bus Free Time Between a STOP and START
Condition
1300
ns
C_b
Capacitive Load for Each Bus Line
R_pull-up SDA and SCL system bus pull-up resistor Maximum is determined by t_R and t_F
t_VD;DAT Data Valid Time
t_VD:ACK Data Valid Acknowledge Time
V_nL
Noise Margin at the LOW Level
V_nH
Noise Margin at the HIGH Level
NOTES:
9. All parameters in I²C Electrical Specifications table are guaranteed by design and simulation.
10. C_b is the capacitance of the bus in pF.
1
0.1VDD
0.2VDD
400 pF
kΩ
0.9 µs
0.9 µs
V
V
FIGURE 1. I²C TIMING DIAGRAM
5
FN6780.1
March 2, 2010