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EM Microelectronics RISC MCU has high-current I/Os

Posted: 02 May 2003 ?? ?Print Version ?Bookmark and Share

Keywords:em microelectronic marin? em6635? risc mcu? risc microcontroller?

EM Microelectronic-Marin SA has announced the availability of the EM6635 RISC microcontroller (MCU) that features nine high-current I/Os capable of driving stepping motors, LEDs, TRIACs, and external EEPROM, and at the same time serve as a power supply for other devices in the system.

Available in a 40-pin MLF2 package and in die form, the MCU also incorporates a 32kHz crystal or 500kHz internal RC oscillator and a 255-tone frequency generator. The device operates from a 1.2V to 3.6V power supply and consume 1.5?A in active mode and 0.4?A in standby mode. Its outputs can drive up to 20mA at 3V with 500mV dropout voltage.

Applications of the EM6635 include security alarm systems, toys, general timekeeping such as sports and industrial timers, household appliances, watches, and clocks.

The MCU executes 72 basic instructions and has a word length of 4 bits. Other features include buzzer outputs, two 8-bit timers, two 4-bit BCD counters, 3-bit event counter, prescaler with 1Hz resolution, serial port, 18 interrupts, watchdog timer, three software-programmable voltage level detectors, and frequency doubler.





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