This part is a kind of semiconductor called HEF4894B.

Function of this product has 12-stage shift-and-store register LED driver.

Manufacturers : NXP

Image and pinout :

HEF4894B image and datasheet pinout



Some of the text within the PDF file :

HEF4894B 12-stage shift-and-store register LED driver Rev. 8 22 November 2011 Product data sheet 1. General description The HEF4894B is a 12-stage serial shift register. It has a storage latch associated with each stage for strobing data from the serial input (D) to the parallel LED driver outputs (QP0 to QP11). Data is shifted on positive-going clock (CP) transitions. The data in each shift register stage is transferred to the storage register when the strobe (STR) input is HIGH. Data in the storage register appears at the output whenever the output enable (OE) input signal is HIGH. Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4894B devices. Serial data is available at QS1 on positive-going clock edges to allow high-speed operation in cascaded systems [ ... ]


HEF4894B PDF Datasheet Download


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2017/10/17 09:25 2017/10/17 09:25