ATTINY3216-SF

Overview

The ATtiny3216-SF is an 8-bit microcontroller from the tinyAVR 1-series, featuring a 20-pin SOIC package. It integrates 32 KB of in-system self-programmable Flash memory, 2 KB of SRAM, and 256 bytes of EEPROM. The device utilizes an AVR CPU with a hardware multiplier, operating at clock frequencies up to 20 MHz. Key peripherals include a Peripheral Touch Controller (PTC), Event System, Configurable Custom Logic (CCL), and multiple timers such as TCA, TCB, TCD, and RTC. Communication interfaces consist of USART, SPI, and TWI.

Feature Summary

• Integrates a Peripheral Touch Controller (PTC) supporting capacitive touch buttons, sliders, wheels, and 2D surfaces with Driven Shield+ technology for improved noise handling.
• Features Core Independent Peripherals (CIPs) including an Event System and Configurable Custom Logic (CCL) to enable CPU-independent operation and reduce power consumption.
• Includes high-precision analog peripherals such as two 10-bit ADCs, three 8-bit DACs, and three Analog Comparators with low propagation delay.
• Supports single-pin Unified Program and Debug Interface (UPDI) for programming and debugging, alongside comprehensive sleep modes for power optimization.

Applications

• Capacitive touch interface applications requiring wake-up on touch detection
• Low-power embedded systems utilizing Core Independent Peripherals for background tasks
• Industrial control devices needing precise timing via dedicated timer modules
• Battery-operated devices leveraging extended data retention and low-power sleep modes

Procurement Notes

Verify the specific suffix 'SF' corresponds to the 20-pin SOIC package and the required temperature grade when ordering. Confirm that the selected variant meets the necessary voltage and speed grades for your application environment. Ensure compatibility with the UPDI programming interface during development setup.

Selection Notes

Select this component for designs requiring significant Flash memory within a compact 20-pin footprint. Consider the integrated PTC if touch sensing is needed without external controllers. Evaluate the available timer configurations and analog peripherals against system requirements to maximize the use of onboard resources.

Part Context

This part belongs to the ATtiny3216/3217 family within the tinyAVR 1-series. These microcontrollers are designed for cost-sensitive applications demanding high performance and low power. The series emphasizes flexibility through its event-driven architecture and extensive peripheral set, suitable for various consumer and industrial uses.

Replacement Considerations

Check for other members of the tinyAVR 1-series with compatible pinouts and memory sizes. Verify functional equivalence regarding peripheral availability and electrical characteristics before substituting.