ATTINY1617-MNR

Overview

The ATtiny1617-MNR is an 8-bit AVR microcontroller from the tinyAVR 1-series, featuring a 20 MHz CPU with hardware multiplier. It includes 16 KB Flash, 2 KB SRAM, and 256 B EEPROM. The device operates at 1.8V to 5.5V and supports up to 22 I/O lines in a 24-pin VQFN package. Key peripherals include two 10-bit ADCs, three 8-bit DACs, one USART, SPI, TWI, and a Peripheral Touch Controller (PTC).

Feature Summary

• Integrated Peripheral Touch Controller (PTC) supporting capacitive touch buttons, sliders, wheels, and 2D surfaces.
• Core Independent Peripherals (CIPs) including Event System and Configurable Custom Logic for offloading CPU tasks.
• Flexible low-power architecture with multiple sleep modes and configurable peripheral operation.
• Single-pin Unified Program and Debug Interface (UPDI) for programming and debugging.

Applications

• Capacitive touch interface systems requiring Driven Shield+ technology.
• Low-power embedded applications utilizing Core Independent Peripherals.
• Systems requiring accurate analog features such as multi-channel ADC and DAC conversion.
• Compact designs needing high I/O density in small packages like VQFN-24.

Procurement Notes

Verify the specific suffix 'MNR' against official Microchip documentation to confirm tape-and-reel packaging and temperature grade. Ensure compatibility with existing design constraints regarding the 24-pin VQFN footprint and UPDI programming requirements before finalizing procurement.

Selection Notes

Select this component when a balance of memory capacity and I/O count is required in a compact form factor. The inclusion of PTC makes it suitable for touch-sensitive applications without external controllers. Consider the 20 MHz speed and CIP capabilities for performance-critical tasks that benefit from reduced CPU load.

Part Context

This part belongs to the ATtiny1614/1616/1617 family within the tinyAVR 1-series. It shares architectural similarities with the ATtiny817 but offers increased flash memory. The series emphasizes low power consumption and advanced analog features while maintaining code compatibility across pin-compatible variants.

Replacement Considerations

Pin-compatible alternatives within the same family include ATtiny1614 and ATtiny1616, though they differ in package options and I/O counts. Verify software compatibility and peripheral availability when substituting.

FAQ

What type of touch sensing does the integrated PTC support?

The Peripheral Touch Controller supports capacitive touch buttons, sliders, wheels, and 2D surfaces, including wake-up on touch events.

How is the device programmed and debugged?

Programming and debugging are performed via a single-pin Unified Program and Debug Interface (UPDI).