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LF48410JC25 Datenblatt(PDF) 1 Page - LOGIC Devices Incorporated |
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LF48410JC25 Datenblatt(HTML) 1 Page - LOGIC Devices Incorporated |
1 / 15 page DEVICES INCORPORATED Video Imaging Products 1 LF48410 1024 x 24-bit Video Histogrammer 08/08/2000–LDS.48410-L u u u u u 40 MHz Data Input and Compu- tation Rate u u u u u 1024 x 24-bit Memory Array u u u u u Histograms of Images up to 4K x 4K with 10-bit Pixel Resolution u u u u u Memory Array Flash Clear u u u u u User-Programmable Modes: Histogram, Histogram Accumulate, Look Up Table, Bin Accumulate, Delay Memory, Delay and Subtract, Single Port RAM u u u u u Replaces Harris HSP48410 u u u u u 84-pin PLCC, J-Lead FEATURES DESCRIPTION LF48410 1024 x 24-bit Video Histogrammer DEVICES INCORPORATED The LF48410 is capable of generating histograms and Cumulative Distribu- tion Functions of video images. It may also be used as a look up table, a bin accumulator, a delay memory (delay and subtract also possible), or a single port RAM. The on-chip 1024 x 24-bit memory array facilitates histograms of images up to 4K x 4K pixels with a 10-bit pixel resolution. Once the histogram of a video image is stored in the memory array, the Cumulative Distribution Function can be calculated by putting the device in Histogram Accumulate Mode. Transformation functions can be performed on pixel values when the device is in Look Up Table Mode. If the Cumulative Distribution Function is the desired transformation func- tion, the LF48410 can calculate it and have it available for Look Up Table Mode. When the device is in Delay Memory Mode, it functions as a video row buffer. In this mode, the LF48410 can buffer video lines as long as 1029 pixels. The device can also function as an asynchronous single port RAM. During asynchronous modes, the device can be configured as a 1024 x 24, 1024 x 16, or 1024 x 8-bit RAM. A Flash Clear function is provided which sets all memory array locations and data path registers to “0”. LF48410 BLOCK DIAGRAM CLK ADDRESS GENERATOR CONTROL WR DIO I/F DIO23-0 24 COUNTER PIN9-0 10 DIN23-0 24 RAM ARRAY DATA IN DATA OUT WR ADDRESS (TO ALL REGISTERS) RD UWS START FC FUNCTION DECODE FCT2-0 LD MUX CONTROL SIGNALS IOA9-0 10 3 ADDER INPUT CONTROL |
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