ATTINY3216-SFR

Overview

The ATTINY3216-SFR is an 8-bit AVR microcontroller from the tinyAVR 1-series, featuring a hardware multiplier and running at up to 20 MHz. It integrates 32 KB of in-system self-programmable Flash memory, 2 KB of SRAM, and 256 bytes of EEPROM. The device includes multiple voltage references (0.55V, 1.1V, 1.5V, 2.5V, 4.3V), two 10-bit ADCs, three 8-bit DACs, and a Peripheral Touch Controller (PTC). It supports communication via USART, SPI, and TWI interfaces.

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 buttons, sliders, wheels, and surfaces with Driven Shield+ technology.
• Features Configurable Custom Logic (CCL) with programmable look-up tables for custom logic implementation.
• Provides automated CRC memory scan capabilities for data integrity verification.

Applications

• Embedded control systems requiring low-power operation
• Capacitive touch interface applications
• Industrial monitoring and sensor nodes

Procurement Notes

Verify the specific suffix 'SFR' against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with UPDI programming tools. Check for automotive qualification status if required, as standard products are documented separately from automotive variants.

Selection Notes

Select this component for designs needing high peripheral density within a small footprint. The inclusion of CIPs allows offloading tasks from the main CPU. Consider the available voltage references and ADC resolution for precision analog applications. Verify pin count requirements against the 20-pin SOIC or 24-pin VQFN options.

Part Context

This part belongs to the tinyAVR 1-series family, which utilizes advanced technologies for flexible, low-power architecture. It shares architectural similarities with other members like the ATtiny3217 but differs in package and I/O configurations. The series emphasizes ease of use through unified programming interfaces and comprehensive peripheral sets.

Replacement Considerations

Consult official cross-reference guides for compatible replacements. Verify functional equivalence regarding memory size, peripheral availability, and package dimensions before substitution.

FAQ

What programming interface does the ATTINY3216-SFR use?

It uses a single-pin Unified Program and Debug Interface (UPDI).

Does the device support capacitive touch sensing?

Yes, it includes a Peripheral Touch Controller (PTC) that supports various touch interfaces including buttons, sliders, and wheels.