LC82293

The LC82293 is designed as one kind of image memory controller that supports a wide range of applications such as video printers and video capture systems. This device features a simple configuration and low cost. It can be used in video printer, video capture systems, etc..

Features of the LC82293 are:(1)can directly be connected to a YUV422 video bus, so that direct connection to various video decoders and video encoders is possible;(2)has a built-in horizontal sampling rate converter (SCR), so that reduction and enlargement by any factor is possible;(3)4 Mbits DRAM / 16 Mbits DRAM directly connectable as image memories;(4)built-in memory compression function for storing image data in compressed form in DRAM. NTSC and PAL images can be captured and displayed with an external 4 Mbits DRAM. Of course, the memory compression function can be switched ON/OFF;(5)DMA supports both DRQ control mode and WAIT control mode. Connection to various DMA controllers is possible.

The absolute maximum ratings of the LC82293 can be summarized as:(1)maximum supply voltage (5 V system): -0.3 to +7.0 V;(2)maximum supply voltage (3 V system): -0.3 to +4.6 V;(3)input / output voltage: -0.3 to VDD+0.3 V;(4)allowable power dissipation: 450 mW;(5)operating temperature: -30 to +70;(6)storage temperature: -55 to +125;(7)soldering temperature: 235;(8)input / output current: +/-20 mA/cell. If you want to know more information such as the electrical characteristics about the LC82293, please download the datasheet in www.seekic.com or www.chinaicmart.com .