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Philips releases low-cost MCUs with two ADCs

Posted: 30 Jun 2004 ?? ?Print Version ?Bookmark and Share

Keywords:royal philips electronics? microcontroller? lpc935? analog-to-digital converter? adc?

Royal Philips Electronics announced a low-priced microcontroller unit (MCU) that features two analog-to-digital converters (ADCs).

According to the company, the LPC935 is a fraction of the cost of competitive offerings. It is the flagship chip of nine new MCUs in the LPC900 family designed for a variety of consumer devices such as coffeemakers, washing machines and intelligent toys. When used in such applications, the device bridges the man-machine worlds, enabling the ADC and DAC conversions between the analog and digital computing worlds.

With two ADCs, the LPC935 can simultaneously convert and read data in two channels, providing designers the advantages of real-time data analysis, such as simultaneously reading voltage and current measurements. It converts these signals in less than 4?s.

Requiring fewer external components and offering a small footprint, each member of the LPC900 family (LPC904, LPC915/6/7, LPC924/5 and LPC933/4/5) allows customers the flexibility to select A/D conversion or high-speed ADC/DAC output. By offering ADC/DAC functionality, customers will no longer need to use separate ADC or DAC on their PCBs that are already integrated into the LPC900 family.

"By including ADC/DAC functionalities into these new microcontrollers, Philips provides its customers with a complete selection from 8-pin and up," said Joe Yu, strategic marketing manager of Philips' Standard IC and Microcontroller Business Line. "Being able to offer these features for less than $2 in a market where the usual price for such components can reach five times as much, makes our solution even more attractive."

Armed with byte-erasable flash technology for enhanced flexibility and performance, the LPC900 family is based on a high-performance processor architecture that executes instructions in 167ns at 12MHz. The family incorporates a real-time clock and three other 16-bit counter/times, as well as features serial communication channels such as a 400kHz byte-wide I?C-bus, enhanced UART and SPI.

All of the new devices are available in quantities of 10,000.

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