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TT1668 Datasheet(PDF) 13 Page - Tontek Design Technology

Part # TT1668
Description  LED Driver with Key Scan Function
PDF  14 Pages
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Manufacturer  TONTEK [Tontek Design Technology]
Direct Link  http://www.tontek.com.tw
Logo TONTEK - Tontek Design Technology

TT1668 Datasheet(HTML) 13 Page - Tontek Design Technology

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Preliminary
TT1628 / TT1668
2014/9/10
Page：13/14
Ver.：2.3
.
AC Electrical Characteristics
Characteristics
Symbol
Conditions
Min
Typ
Max
Unit
Oscillation frequency
fosc
350
500
650
KHz
Propagation delay time
tPLZ
CLK → DIO
CL=15pF , RL=10KΩ
300
ns
tPZL
100
Output rising time
tTZH1
SEG1～SEG10 CL=300pF
2
us
tTZH2
Grid1～Grid4
SEG12/Grid7～ SEG14/Grid5
CL=300pF
0.5
Output falling time
TTHZ
CL = 300pF，Segn， Gridn
120
us
Clock Frequency
Fmax
Duty=50%
1
MHz
Input Capacitor
CI
15
pF
Clock Pulse Width
PWCLK
400
ns
Strobe Pulse Width
PWSTB
1
us
Data setup time
tSETUP
ns
Data hold time
tHOLD
ns
CLK →STB
tCLK-STB
CLK↑→STB↑
1
us
Wait time
tWAIT
CLK↑→CLK↓
1
us
Timing Diagram



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