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IS31FL3731C Datasheet(PDF) 6 Page - Integrated Silicon Solution, Inc

Part # IS31FL3731C
Description  AUDIO MODULATED MATRIX LED DRIVER
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Manufacturer  ISSI [Integrated Silicon Solution, Inc]
Direct Link  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS31FL3731C Datasheet(HTML) 6 Page - Integrated Silicon Solution, Inc

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IS31FL3731C
Integrated Silicon Solution, Inc. – www.issi.com
6
Rev. B, 04/01/2014
DIGITAL INPUT SWITCHING CHARACTERISTICS (Note 4)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
fSCL
Serial-Clock frequency
400
kHz
tBUF
Bus free time between a STOP and a START
condition
1.3
μs
tHD, STA
Hold time (repeated) START condition
0.6
μs
tSU, STA
Repeated START condition setup time
0.6
μs
tSU, STO
STOP condition setup time
0.6
μs
tHD, DAT
Data hold time
0.9
μs
tSU, DAT
Data setup time
100
ns
tLOW
SCL clock low period
1.3
μs
tHIGH
SCL clock high period
0.7
μs
tR
Rise time of both SDA and SCL signals,
receiving
(Note 5)
20+0.1Cb
300
ns
tF
Fall time of both SDA and SCL signals, receiving
(Note 5)
20+0.1Cb
300
ns
Note 1:
The average current of each LED is IOUT/10.5.
Note 2:
All LEDs are on.
Note 3:
ILED = 64.7/REXT, REXT = 20kΩ is recommended. The recommended minimum value of REXT is 18kΩ, or it may cause a large current.
Note 4:
Guaranteed by design.
Note 5:
Cb = total capacitance of one bus line in pF. ISINK ≤ 6mA. tR and tF measured between 0.3 × VCC and 0.7 × VCC.
Figure 2
Scanning timing


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