ATTINY3217-MF

Overview

The ATtiny3217-MF is an 8-bit microcontroller from the tinyAVR 1-series, featuring a 20 MHz AVR CPU with hardware multiplier. It includes 32 KB of self-programmable Flash memory, 2 KB of SRAM, and 256 bytes of EEPROM. The device supports up to 22 programmable I/O lines in a 24-pin VQFN package. Key peripherals include a 12-bit TCD timer, two 10-bit ADCs, three 8-bit DACs, and a Peripheral Touch Controller (PTC). It operates within a voltage range of 1.8V to 5.5V and supports temperatures from -40°C to 125°C.

Feature Summary

• Integrates Core Independent Peripherals (CIPs) such as the 12-bit Timer/Counter Type D for control applications and the Peripheral Touch Controller for capacitive touch interfaces.
• Features an Event System for CPU-independent inter-peripheral signaling and Configurable Custom Logic (CCL) with programmable look-up tables.
• Includes advanced analog capabilities with multiple voltage references, three 8-bit DACs, and two 10-bit ADCs with high-speed conversion.
• Supports single-pin Unified Program and Debug Interface (UPDI) and offers multiple sleep modes including Power-Down with full data retention.

Applications

• Sensor nodes requiring low power consumption and responsive processing
• Battery-powered devices utilizing capacitive touch interfaces
• General-purpose embedded control systems
• Applications needing precise timing via the 12-bit TCD timer

Procurement Notes

Verify the specific suffix 'MF' corresponds to the 24-pin VQFN 4x4 mm package and the -40°C to 125°C temperature grade. Confirm that the ordering code matches the required speed grade and memory configuration. Ensure compatibility with the UPDI programming interface during procurement planning.

Selection Notes

Select this component when 32 KB of Flash memory and extensive analog peripherals are required in a compact 24-pin package. It is suitable for designs needing the Peripheral Touch Controller or the 12-bit Timer/Counter Type D. Consider the operating voltage range and temperature specifications to ensure they align with the target application environment.

Part Context

The ATtiny3217 is part of the tinyAVR 1-series, representing Microchip's next-generation 8-bit microcontrollers. This series introduces Core Independent Peripherals and enhanced analog features while maintaining the efficient AVR architecture. The ATtiny3217 serves as the higher-end variant within the 20/24-pin package options, offering increased memory compared to the ATtiny3216.

FAQ

What is the maximum clock frequency of the ATtiny3217?

The ATtiny3217 runs at up to 20 MHz.

Does the ATtiny3217 support capacitive touch sensing?

Yes, it integrates a Peripheral Touch Controller (PTC) supporting buttons, sliders, wheels, and 2D surfaces with Driven Shield+ technology.