LED2472G datasheet(15/39 Pages) STMICROELECTRONICS

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LED2472G 数据表(PDF) 15 Page - STMicroelectronics

部件名	LED2472G

功能描述	24-channels LED driver with error detection and gain control

PDF	39 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

15 / 39 page

DocID024620 Rev 3

15/39

LED2472G

Timing

Figure 4. Timing for clock, serial-in, serial-out, latch enable and outputs

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 4. The same figure shows the propagation delay from CLK to SDO

(tPLH/tPHL). Figure 4 describes also the minimum duration of CLK and LE pulses (tW(CLK)

and tW(L), respectively) and the propagation delay from LE to OUTn (tPLH1/tPHL1 and

tPLH2/tPHL2, respectively). Finally, Figure 5 also defines the turn-on and turn-off time (tof and

tor) of the output voltage.

Figure 5. OE and Outputs timing

AM13690V1

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