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SC668
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Digital Input Electrical Specifications (PWM, EN, SDA, SCL)
Input High Threshold (7) (8)
Input Low Threshold (7) (8)
V IH
V IL
V IN = 5.5V
V IN = 2.9V
1.6
0.4
V
V
Input High Current
Input Low Current
I IH
I IL
V IN = 5.5V
V IN = 5.5V
-1
-1
+1
+1
μA
μA
PWM Input Specification (PWM)
PWM Input Frequency
f PWM
0.2
50
kHz
I 2 C Interface
Interface complies with slave mode I 2 C interface as described by Philips I 2 C specification version 2.1 dated January, 2000.
Digital Input Voltage (7)
SDA Output Low Level
Digital Input Current
Hysteresis of Schmitt Trigger Inputs
Maximum Glitch Pulse Rejection
I/O Pin Capacitance
V B-IL
V B-IH
I B-IN
V HYS
t SP
C IN
I DIN (SDA) ≤ 3mA
1.6
-0.2
0.1
50
10
0.4
0.4
0.2
V
V
V
μA
V
ns
pF
I 2 C Timing
Clock Frequency (7)
SCL Low Period (7) (8)
f SCL
t LOW
1.3
400
440
kHz
μs
SCL High Period
(7) (8)
t HIGH
0.6
μs
Data Hold Time (7) (8)
t HD_DAT
0
μs
Data Setup Time
(7) (8)
t SU_DAT
100
ns
Setup Time for Repeated
START Condition (7) (8)
Hold Time for Repeated
START Condition (7) (8)
Setup Time for STOP Condition (7) (8)
Bus-Free Time Between
STOP and START (7) (8)
t SU_STA
t HD_STA
t SU_STO
t BUF
0.6
0.6
0.6
1.3
μs
μs
μs
μs
Interface Start-up Time (7) (8)
t EN
Bus start-up time after EN pin is pulled high
900
μs
5
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