STLED316S_08 datasheet(27/33 Pages) STMICROELECTRONICS

Part #	STLED316S

Description	Serial-interfaced 6-digit LED controller with keyscan

PDF	33 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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27 / 33 page

STLED316S

Key-scanning and display timing

27/33

9.2

Serial communication format (transmission)

The figure below shows the “transmission” from STLED316S for data read sequence.

Figure 6.

Serial communication format (transmission)

Because the DIN/DOUT pin in a bi-directional pin, it is recommended to connect an external

pull-up resistor to thi

s pin (1 KΩ to 10 KΩ).

Note:

No minimum wait time is needed to read the data from the device. The STLED316S will

output the data about 250 ns after the 8th clock pulse’s falling edge. It is therefore suggested

that the host must release the bus within 100ns after clocking the last bit on the 8th clock

pulse. The STLED316S is able to clock out the valid data on the immediate falling edge of

the CLK without missing any clock cycle.

STB

DIN

CLK

If data are contiguous

CS15561

STLED316S Datasheet(PDF) 27 Page - STMicroelectronics