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RISC MCU rolls with on-chip dot matrix LCD driver

Posted: 31 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:16bit RISC MCU? dot matrix LCD driver? flash ROM?


Seiko Epson Corp. has developed the S1C17701, a 16bit RISC MCU with 16Mbytes of memory that features low power consumption and circuit size equivalent to an 8bit MCU.

The S1C17701 is a single-chip MCU featuring on-chip flash ROM and a high-resolution dot matrix LCD driver. With 64Kbytes of flash ROM, the product is suitable for software development and evaluation activities.

Epson has utilized the low power consumption technology developed for its watch applications to achieve low current consumption (typically 2.5?A during standby mode) and enable high-speed operation (8.2MHz) with low operation voltage (1.8V). In most cases, the product allows customers currently using 8bit MCUs to enjoy higher performance with the same power consumption. The chip also enables customers already using 16bit MCUs to benefit from longer battery life derived from low operating voltage.

The 16bit RISC MCU with low power consumption and circuit size equivalent to an 8bit MCU. It has the following specifications: SLEEP state: 1?A (typical), HALT state (32.768KHz): 2.5?A (typical), RUN state (32.768KHz): 13.5?A (typical) and LCD ON state (32.768KHz): 6.5?A (typical).

With an on-chip grayscale display driver has a resolution of 56 SEG x 32 COM (1,792 dots), the product is suitable for large-scale LCD displays that does not require external circuits, featuring built-in voltage regulator/booster circuits.

The chip enables reduced development time and allows for preparation and immediate evaluation of software simulators and compact development tools. It includes a C compiler and instruction set with high code efficiency, a compact, reduced-pin serial ICE and an on-chip flash ROM (that supports self-programming).

Applications include remote controllers, sports watches and portable healthcare equipment being upgraded in terms of battery operation, sensor interface, compact size and grayscale LCD display.

The product is housed in TQFP24-144-pin plastic packages (bare chip). Shipments of samples of the product will start next month, with volume shipments to begin in October. Delivery of volume production shipments is within a minimum of 8 days.

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