Microchip today announced its AVR® DA family of microcontrollers, its first functional safety AVR family of microcontrollers to incorporate a Peripheral Touch Controller (PTC). Microchip's new AVR DA family of microcontrollers achieves a CPU speed of 24 MHz across the entire supply voltage range, memory up to 128 KB flash, 16 KB SRAM and 512 bytes EEPROM, an A/C converter 12-bit differential D, a 10-bit D/A converter, analog comparators, and zero-crossing detectors.
PTC enables the design of capacitive touch interfaces with smaller buttons, controls, thumbwheels, mats and touch screens, as well as gesture controls used in a wide variety of consumer and industrial products and vehicles. The AVR DA family of microcontrollers features up to 46 self-capacitive touch channels and 529 mutually capable touch channels and incorporates state-of-the-art PTC with Driven Shield+ and advanced technologies that improve noise immunity, water tolerance, touch sensitivity and the response time.
The AVR DA family of microcontrollers integrates various security features to ensure robust operation; Features that ensure sufficient power supply voltage include power-up reset, improper voltage detector, and voltage level monitor. The cyclic redundancy check (CRC) ensures that the application code in flash memory is valid. By ensuring code integrity, you can prevent an unexpected and potentially unsafe response from your application.
