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LED1642GWPTR Fiches technique(PDF) 14 Page - STMicroelectronics

No de pièce LED1642GWPTR
Description  16 channel LED driver with error detection current gain control
PDF  42 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LED1642GWPTR Fiches technique(HTML) 14 Page - STMicroelectronics

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Switching characteristics
LED1642GW
14/42
DocID024395 Rev 6
Figure 5. Timing for clock, serial in, serial out, latch enable and outputs
The correct sampling of the data depends on the stability of the data at SDI on the rising
edge of the clock signal and it is assured by a proper data setup and hold time (tSU(D) and
th(D)), as shown in Figure 5. The same figure shows the propagation delay from CLK to SDO
(tPLH/tPHL). Figure 5 describes also the minimum duration of CLK, LE pulses (tW(CLK)) and
tW(L) respectively and the propagation delay from LE to OUTn (tPLHLE and tPHLLE) in the
hypothesis that all channels have already been enabled by PWM counter.
t
pLHLE,tpHLLE
AM13690V1



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