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Application processor integrates display, interface functions

Posted: 12 May 2008 ?? ?Print Version ?Bookmark and Share

Keywords:application processor? LCD displays? NAND flash memory?


Seiko Epson Corp. has developed the S1C33L17, an application processor that is suited to analog-input, large-screen, full-graphic LCD displays and various interfaces, as well as to portable devices such as electronic dictionaries, which require high-level data processing and displays. This application processor is also suited for operation panels and display system devices, which require such functions as display, and operation by means of touch-panel or key-input.

This product offers a one-chip solution integrating functions such as color LCD control circuit, USB 2.0 device connectivity, ADC and interfaces for electronic media, SDRAM and NAND flash memory, that are required for electronic dictionaries, operation panels, and display system devices. Compared with conventional products, the S1C33L17 enables even faster processing capabilities by providing a 10 percent increase in operating frequency, and its color LCD control circuit boosts its compatibility with TFT-LCDs from 12bit color (4,000 colors) to 16bit color (64,000 colors).

The I?S external interface has made it possible to select 16bit or 24bit resolution for the I/O channel by boosting compatibility from supporting only a 16bit input channel to supporting a 16/24bit I/O channel. Moreover, as an output mode, it supports stereo, monaural and mute outputs.

Depending on the hardware, this product can accommodate accelerators to support features such as Picture in Picture, thereby enabling users of the chip to achieve advanced image capabilities with a minimum of development work. Moreover, power consumption during operation has been reduced by changing the frequency division ratio of the CPU clock and controlling clocks for each block of functions. In addition, employing Epson's unique low-leak technology makes it possible to minimize power leakage in sleep mode. This new application processor offers both the high level of functional integration and long battery life demanded by electronic dictionaries, operation panels, and display system devices.

The product is shipping in three configurations: bare chip (90?m pitch), TQFP24-144 (0.4mm pitch) and PFBGA 12U-180 (0.8mm pitch).

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