ACT81460
Rev 1.0, 18-Dec-2018
I2C INTERFACE ELECTRICAL CHARACTERISTICS
(VSYS = 3.6V, TA = 25°C, unless otherwise specified.)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
VILO
VIHI
SCL, SDA Input Low
SCL, SDA Input High
SDA Leakage Current
SDA Output Low
VIO_IN = 1.8V
VIO_IN = 1.8V
SDA = 3.6V
IOL = 5mA
0.4
V
V
1.25
IOH
0.1
µA
V
VOL
0.35
1000
SCL Clock Frequency
SCL Low Period
fSCL
0
kHz
us
tSCL_LOW
0.5
0.26
SCL High Period
tSCL_HI
us
SDA Data Setup Time
SDA Data Hold Time
Start Setup Time
tSU
50
0
ns
ns
ns
ns
ns
pF
tHD
tST
260
260
Stop Setup Time
tSP
SDA Fall Time, Toff
Device requirement
120
10
Capacitance on SCL or SDA PIN CIN
Noise suppression on SCL and
tDEGLITCH
50
ns
SDA
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 COLD, SLEEP, OVUVFLT,
and THERMAL states to clear any transactions that may have been occurring when entering the above states.
Note3: This is an I2C system specification only. Rise and fall time of SCL & SDA not controlled by the IC.
Note4: IC Address is factory configurable to 0x24h, 0x26h, 0x66h, 0x6Ah.
tSCL
SCL
tST
tHD
tSU
tSP
SDA
Start
Stop
condition
condition
Figure 2: I2C Data Transfer
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