ATTINY214-SSFR

Overview

The ATTINY214-SSFR is an 8-bit microcontroller from the Microchip tinyAVR 1-series, utilizing the AVR processor core with a hardware multiplier. It features 4 KB of in-system self-programmable Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM. The device operates at clock frequencies up to 20 MHz and supports supply voltages ranging from 1.8 V to 5.5 V. It includes a 10-bit ADC, an 8-bit DAC, and multiple timers including TCA, TCB, TCD, and RTC. Communication interfaces include USART, SPI, and TWI. The component is housed in a 14-pin SOIC package.

Feature Summary

• Core Independent Peripherals (CIPs) such as Configurable Custom Logic (CCL) and Event System enable CPU-independent operations for reduced power consumption.
• Integrated analog peripherals include a 10-bit ADC and an 8-bit DAC with multiple voltage references.
• Comprehensive timer suite featuring 16-bit TCA, 16-bit TCB, 12-bit TCD optimized for control, and a Real-Time Counter (RTC).
• Single-Pin Unified Program and Debug Interface (UPDI) simplifies programming and debugging workflows.

Applications

• Battery-powered sensor nodes requiring low-power operation and extended data retention.
• Industrial control systems utilizing the Event System for deterministic peripheral signaling.
• Consumer electronics employing the Configurable Custom Logic for glue logic replacement.
• Motor control applications leveraging the 12-bit Timer/Counter Type D.

Procurement Notes

Verify the specific suffix 'SSFR' corresponds to the 14-pin SOIC package and tape-and-reel packaging format. Confirm that the operating temperature range aligns with your system requirements, as the datasheet specifies ranges up to 125°C. Ensure compatibility with the UPDI interface for your development tools. Check for any silicon errata documents relevant to this specific revision before finalizing the design.

Selection Notes

Select the ATTINY214-SSFR when 4 KB of Flash and 256 bytes of SRAM are required within a 14-pin footprint. This model is suitable for designs needing an 8-bit DAC and extensive timer resources compared to lower-memory variants. Consider the 20 MHz maximum speed and 1.8 V minimum supply voltage for power-constrained environments. Evaluate the CCL capabilities if hardware logic offloading is necessary to reduce CPU load.

Part Context

This component belongs to the tinyAVR 1-series family, which introduces Core Independent Peripherals to enhance efficiency. Unlike previous generations, this series integrates advanced analog features and flexible event routing directly into the architecture. The 14-pin SOIC variant provides a balance between I/O count and board space, making it distinct from the 8-pin and 20-pin options available in the same series.

Replacement Considerations

The ATTINY414-SSFR offers increased memory capacity while maintaining the same pinout and peripheral set. For applications requiring fewer resources, the ATTINY212-SSFR serves as a lower-cost alternative with identical functionality but reduced memory. Cross-compatibility exists within the tinyAVR 1-series regarding software migration due to architectural similarities.