Timepiece microcomputer cuts power consumption

13 July 2005 DSP, Micros & Memory

The S1C63708 is Seiko Epson's ultra-low-power 4-bit microcomputer ideal for use in watches and clocks. It uses newly-developed circuitry to achieve ultra-low power consumption, consuming a mere 0,15 μA in halt, 2,50 μA in operation, and 1 mA in high-speed operation (ceramic oscillator 4 MHz). The S1C63708 is a microcomputer with a CMOS 4-bit core, integrating elements including ROM (8,192 words x 13-bit), RAM (1,024 words x 4-bit), serial interface, PWM programmable timer, LCD driver (32 segments x six commons), sound generator and stepping motor driver on a single chip. An earlier Epson microcomputer had already achieved the industry's lowest level of power consumption, but now the S1C63708 consumes a third as much. The built-in LCD driver and stepping motor driver make this product suitable for analog quartz, digital quartz, and mixed analog/digital quartz timepiece applications.

www.epson.co.jp

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