ATTINY3216-SNR

Overview

The ATTINY3216-SNR is an 8-bit microcontroller from the tinyAVR 1-series, featuring a 20-pin SOIC package. It integrates 32 KB of self-programmable Flash memory, 2 KB of SRAM, and 256 bytes of EEPROM. The device operates at clock frequencies up to 20 MHz with a supply voltage range of 1.8 V to 5.5 V. Key peripherals include two 10-bit ADCs, three 8-bit DACs, multiple timers (TCA, TCB, TCD), USART, SPI, TWI, and a Peripheral Touch Controller.

Feature Summary

• Integrates Core Independent Peripherals (CIPs) and an Event System for CPU-independent inter-peripheral signaling.
• Includes a Peripheral Touch Controller (PTC) supporting capacitive touch interfaces with Driven Shield+ technology.
• Features a single-pin Unified Program and Debug Interface (UPDI) for programming and debugging.
• Provides configurable custom logic (CCL) with programmable look-up tables.

Applications

• Portable battery-powered devices requiring low-power operation
• Industrial control systems utilizing analog sensing
• Consumer electronics with capacitive touch interface requirements

Procurement Notes

Verify the specific speed grade suffix required for your operating voltage and frequency constraints. Confirm that the SNR suffix corresponds to the tape and reel packaging format intended for automated assembly processes. Ensure compatibility with existing design tools and UPDI programmers.

Selection Notes

Select this component when 32 KB of program memory is necessary compared to smaller variants in the series. Consider the 20-pin SOIC package for surface-mount applications where pin count limits are defined. Evaluate the need for the integrated PTC if touch functionality is required without external controllers.

Part Context

This part belongs to the ATtiny3216/3217 family within the tinyAVR 1-series. It shares architectural similarities with the ATtiny1616 but offers double the Flash memory capacity. The series emphasizes low power consumption and high performance through hardware multipliers and advanced peripheral integration.

Replacement Considerations

ATtiny3216-SN

FAQ

What is the maximum operating frequency of the ATTINY3216-SNR?

The device supports clock frequencies up to 20 MHz.

Does the ATTINY3216-SNR support capacitive touch sensing?

Yes, it includes a Peripheral Touch Controller (PTC) capable of handling capacitive buttons, sliders, wheels, and surfaces.