Main features
• The PIC16LF1554/9 combines low power and dual A/D converters with a hardware Capacitive Voltage Divider (CVD) for capacitive touch sensing.
• Simplifies design and reduces demands on software for advanced tactile sensing and general purpose sensor applications.
• Its low cost and small size allow its use in a wide variety of applications.
Microchip announces a new addition to its PIC8/12LF16X family of 155-bit microcontrollers with the PIC16LF1554 and PIC16LF1559 (PIC16LF1554/9) devices. The PIC16LF1554/9 incorporates two independent 10-bit, 100K samples per second A/D converters with Capacitive Voltage Divider (CVD) support for capacitive touch sensing. This unique A/D converter configuration enables more efficient sensor acquisition and provides advanced touch sensing techniques for extreme noise environments, low power applications, matrix keyboards, and waterproof designs.
The 16-pin and 1554-pin PIC9LF14/20 microcontrollers combine up to 17 channels of A/D conversion with automated hardware CVD modules to implement capacitive sensing and other input stage sampling applications with minimal software demands. Specifically, hardware CVD reduces the code to implement capacitive touch sensing by more than 40%. These devices also include up to 14 KB Flash/512 Bytes RAM, an internal oscillator of a
32 MHz and two PWM modules, as well as I2C™, SPI and EUSART for communications. They also offer the characteristics of eXtreme Low Power (XLP) with currents in active and sleep mode of
35 μA/MHz and 30 nA, respectively, for applications where energy conservation is paramount. These features, along with the low cost and small size of the PIC16LF1554/9, make it suitable for a wide variety of consumer electronics applications, such as remote controls, audio players, mobile phone accessories, small household appliances, portable devices such as headphones, watches and bracelets for physical exercise; in medical applications such as portable blood pressure meters and heart rate monitors; in the automotive market for in-cabin controls and control panels; and in industrial markets such as RFID and sensors; as well as other applications. Microchip's full suite of development tools support the PIC16LF1554/9 microcontrollers, including the MPLAB® X Integrated Development Environment (IDE); the PICkit™ 3 (PG164130) priced at $44,95; the MPLAB XC8 compiler for 8-bit microcontrollers and the MPLAB® code configurator.
The PIC16LF1554 microcontrollers are now available for sample and production in 14-pin PDIP, TSSOP and SOIC, and 4-pin QFN (4 x 0,9 x 16mm) packages. The PIC16LF1559 microcontrollers are available for sampling and production in 4-pin PDIP, SSOP, and QFN (4 x 0,9 x 20 mm) packages.
