ATTINY417-MNR

Overview

The ATTINY417-MNR is an 8-bit AVR microcontroller from the tinyAVR 1-series, featuring 4 KB of in-system self-programmable Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM. It operates at speeds up to 20 MHz with a supply voltage range of 1.8V to 5.5V. The device includes a 10-bit ADC, 8-bit DAC, USART, SPI, TWI, and a Peripheral Touch Controller (PTC). It utilizes a single-pin UPDI for programming and debugging, housed in a 24-pin VQFN package.

Feature Summary

• Integrates a Peripheral Touch Controller (PTC) supporting capacitive touch buttons, sliders, wheels, and 2D surfaces with driven shield technology.
• Features Core Independent Peripherals including Event System (EVSYS) and Configurable Custom Logic (CCL) for CPU-independent inter-peripheral signaling.
• Supports multiple sleep modes such as Idle, Standby, and Power-Down with full data retention, alongside SleepWalking capabilities for low-power operation.

Applications

• Capacitive touch interface implementations using integrated PTC channels.
• Low-power embedded systems requiring extended battery life via configurable sleep modes.
• Control applications utilizing the 12-bit Timer/Counter Type D (TCD) optimized for control tasks.
• Data acquisition systems leveraging the 10-bit ADC and 8-bit DAC for analog signal processing.

Procurement Notes

Verify the specific speed grade suffix required for your operating voltage and frequency constraints, as the base part number may denote different performance tiers. Confirm the package type matches your PCB footprint requirements. Ensure compatibility with the UPDI programming interface for your development tools. Check for any automotive or industrial temperature range specifications if applicable to your deployment environment.

Selection Notes

Select this component when a balance of moderate Flash capacity and advanced analog features like PTC is needed within a compact 24-pin form factor. Consider the tinyAVR 1-series architecture for projects benefiting from single-cycle I/O access and hardware multipliers. Evaluate the available timer configurations against your timing precision requirements before finalizing the choice.

Part Context

This model belongs to the ATtiny417/817 series within Microchip's tinyAVR 1-family. It shares architectural similarities with other members like the ATtiny817 but differs in memory size and specific peripheral availability. The MNR suffix typically indicates a tape and reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

Direct substitutes include other members of the tinyAVR 1-series such as the ATtiny416 or ATtiny817, provided pinout and memory requirements align. Verify that alternative parts support the same UPDI interface and peripheral set, particularly the PTC if touch functionality is critical.

FAQ

Does the ATTINY417-MNR support capacitive touch sensing?

Yes, it includes a Peripheral Touch Controller (PTC) capable of handling capacitive touch buttons, sliders, wheels, and 2D surfaces with driven shield support.

What is the maximum operating frequency of this microcontroller?

The device can run at speeds up to 20 MHz, depending on the specific speed grade and supply voltage conditions.

How is the device programmed and debugged?

It uses a single-pin Unified Program and Debug Interface (UPDI) for both in-system programming and debugging functions.