ACT4910QW
Rev 1.0, 15-Sept-2017
I2C INTERFACE ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SCL, SDA Input Low
SCL, SDA Input High
SDA Leakage Current
VIO = 1.8V
VIO = 1.8V
SDA=5V
0.6
V
V
1.2
1
µA
SDA Output Low
IOL = 5mA
0.35
1000
V
SCL Clock Frequency, fSCL
SCL Low Period, tLOW
0
kHz
µs
0.5
SCL High Period, tHIGH
0.26
µs
SDA Data Setup Time, tSU
SDA Data Hold Time, tHD
Start Setup Time, tST
50
0
ns
ns
ns
ns
pF
ns
ns
(Note1)
For Start Condition
For Stop Condition
260
260
Stop Setup Time, tSP
Capacitance on SCL or SDA Pin
SDA Rise Time SDA, Tr
SDA Fall Time SDA, Tf
10
Device requirement
Device requirement
120
120
Pulse Width of spikes must be suppressed
on SCL and SDA
0
50
ns
Note1: Comply with I2C timings for 1MHz operation - “Fast Mode Plus”.
Note2: No internal timeout for I2C operations, however, I2C communication state machine will be reset when entering UV/POR State.
Note3: This is an I2C system specification only. Rise and fall time of SCL & SDA not controlled by the device.
Note4: Device Address is factory configurable to 7’h1A, 7’h3A, 7’h5A.
tSCL
SCL
tST
tHD
tSU
tSP
SDA
Start
Stop
condition
condition
Figure 2: I2C Data Transfer
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