Electronic Design
8-bit PIC MCUs Combine Dual ADCs With Hardware CVD Support

8-bit PIC MCUs Combine Dual ADCs With Hardware CVD Support

14- and 20-pin MCUs combine up to 17 ADC channels with automated hardware CVD modules to implement capacitive sensing and other front-end sampling applications with minimal software overhead.

The PIC16LF1554 and PIC16LF1559 8-bit MCUs from Microchip include two independent 10-bit 100 K samples per second ADCs with hardware CVD support for capacitive-touch sensing. This unique ADC configuration enables more efficient sensor acquisition and assists with advanced touch-sensing techniques for extremely noisy environments, low-power applications, matrix keypads and water-resistant designs. The 14- and 20-pin MCUs combine up to 17 ADC channels with automated hardware CVD modules to implement capacitive sensing and other front-end sampling applications with minimal software overhead. The devices include up to 14 KB Flash/512 Bytes RAM, a 32 MHz internal oscillator, two PWM modules, along with I2C, SPI and EUSART for communications, and are XLP compliant with active and sleep currents of 35 µA/MHz and 30 nA, respectively. The MCUs are supported by the MPLAB X IDE, PICkit 3, MPLAB XC8 Compiler, and MPLAB Code Configurator development tools. The PIC16LF1554/9 MCUs are available now for sampling and production with prices starting at $0.63 each/10,000. The PIC16LF1554 is available in 14-pin PDIP, TSSOP, SOIC and 16-pin QFN (4 x 4 x .9 mm) packages, and the PIC16LF1559 in 20-pin PDIP, SSOP and QFN packages.

MICROCHIP TECHNOLOGY INC.

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