- June 28, 2018
June 28, 2018 —Microchip Technology has expanded its tinyAVR MCU series to include two devices with analog features and the largest memory variant in the family. Designed for operation in harsh environments, the devices come with built-in safety functions to help designers create safe systems.
Suitable for sensor applications including capacitive touch interfaces, the ATtiny3217 and ATtiny3216 have two Analog-to-Digital Converters (ADCs) that enable systems to implement touch control simultaneously with other analog measurements. One ADC can be used with the Peripheral Touch Controller (PTC) for touch signal acquisition, while the second one monitors other inputs such as thermistors and pressure sensors, or both ADCs can be used for faster sampling of different types of sensors.
The dual ADC can be used for synchronous sampling of analog signals, such as voltage and current. Additionally, the devices feature a hardware-based Event System that enables inter-peripheral communication without CPU involvement.
Both devices come with built-in safety functions to help designers detect and respond to voltage supply variations or drops, including the Power On Reset (POR), programmable Brownout Detect (BOD), Voltage Level Monitor (VLM) and Windowed Watchdog Timer (WWDT). The devices operate at up to 5V and come available in 125°C variants and have 32 KB of Flash.
The ATtiny3217 and ATtiny3216 are the latest devices in Microchip’s tinyAVR family of MCUs, including the ATtiny1617 and the ATtiny817.