AVR^® EA Microcontrollers (MCUs)

You can use the built-in features that support safety-critical applications to add robustness and reliability to your design. These include the Windowed Watchdog Timer (WWDT) for system supervision, the Cyclic Redundancy Check (CRC) for scanning Flash memory, and the Event System for fault detection. Other features include a Voltage Level Monitor (VLM), a Brown-Out Detector (BOD) and Power-On Reset (POR) for monitoring the supply voltage. The CFD enables the microcontroller to detect if the primary clock source stops and then automatically switch over to an alternative internal clock source.

The Configurable Custom Logic (CCL) peripheral is a programmable logic peripheral that can be connected to the device pins, events or other internal peripherals. Each Lookup Table (LUT) consists of three inputs: a truth table, an optional synchronizer and a filter and edge detector. An LUT can generate an output to be routed internally or to an I/O pin. This eliminates the need for external logic and reduces BOM cost.

The on-board 12-bit, 375 ksps differential Analog-to-Digital Converter (ADC) features selectable internal voltage references with minimal temperature drift, and  Programmable Gain Amplifier (PGA) supporting up to 16x gain making it possible to retrieve small signals in noisy environments. Using the Event System, the on-board Analog Comparator (AC) can be connected to trigger autonomous operation in other peripherals, which is ideal for real-time control and closed-loop operations. The output of the 10-bit Digital-to-Analog Converter (DAC) can either be sent to a pin or it can be used to generate an adjustable reference voltage for the AC.

You can use the built-in features that support safety-critical applications to add robustness and reliability to your design. These include the Windowed Watchdog Timer (WWDT) for system supervision, the Cyclic Redundancy Check (CRC) for scanning Flash memory, and the Event System for fault detection. Other features include a Voltage Level Monitor (VLM), a Brown-Out Detector (BOD) and Power-On Reset (POR) for monitoring the supply voltage. The CFD enables the microcontroller to detect if the primary clock source stops and then automatically switch over to an alternative internal clock source.

The Configurable Custom Logic (CCL) peripheral is a programmable logic peripheral that can be connected to the device pins, events or other internal peripherals. Each Lookup Table (LUT) consists of three inputs: a truth table, an optional synchronizer and a filter and edge detector. An LUT can generate an output to be routed internally or to an I/O pin. This eliminates the need for external logic and reduces BOM cost.

The on-board 12-bit, 375 ksps differential Analog-to-Digital Converter (ADC) features selectable internal voltage references with minimal temperature drift, and  Programmable Gain Amplifier (PGA) supporting up to 16x gain making it possible to retrieve small signals in noisy environments. Using the Event System, the on-board Analog Comparator (AC) can be connected to trigger autonomous operation in other peripherals, which is ideal for real-time control and closed-loop operations. The output of the 10-bit Digital-to-Analog Converter (DAC) can either be sent to a pin or it can be used to generate an adjustable reference voltage for the AC.