Microchip AVR® DA Microcontrollers - New functional safety-ready MCU family
Microchip Technology has introduced the AVR® DA family of microcontrollers, the first devices based on the AVR processor core and a Peripheral Touch Controller (PTC) to be designated as ‘Functional Safety Ready’.
Ideal for real-time control, connectivity and HMI applications, the AVR® DA microcontrollers from Microchip feature a Functional Safety Ready designation that is applied to devices which incorporate the latest safety features and are supported by safety manuals, Failure Modes, Effects, and Diagnostic Analysis (FMEDA) reports, and in some cases, diagnostic software. These features reduce the time and cost of certifying the safety performance of end applications.
The Microchip AVR DA MCU family includes several integrated safety functions to ensure robust operation. These include functions for ensuring a sufficient supply voltage such as power-on reset, brown-out detector and voltage-level monitor. In addition, a Cyclic Redundancy Check (CRC) scan ensures that application code in the AVR DA MCU’s Flash memory is valid. Checking the integrity of the application’s code ensures that unintended and potentially unsafe behaviour of the application can be avoided.
Microchip’s new AVR DA family of MCUs operates at a core frequency of 24MHz over the full supply-voltage range. Embedded memory provision includes up to 128kbytes of Flash, 16kbytes of SRAM and 512 bytes of EEPROM. Among the AVR DA MCU’s analogue peripherals are a 12-bit differential ADC, 10-bit DAC, analogue comparators and zero-cross detectors. These advanced analogue features mean that the Microchip MCU can be used to measure small signals in noisy conditions, making it well suited to sensor-node applications in harsh environments.
The Microchip AVR DA microcontroller’s PTC enables capacitive touch interfaces to support buttons, sliders, wheels, touchpads and small touch screens as well as gesture controls.
In addition, the AVR DA family of MCUs brings additional value to embedded real-time control systems. The integrated event system enables inter-peripheral communication without involving the CPU. Events are latency-free and are never lost, providing enhanced real-time performance and predictability for reliable and safe designs. Reducing the time the CPU needs to be active lowers system power consumption.
Features (BHx260AB)
| Applications
|
