ATTINY214-SSNR

Overview

The ATTINY214-SSNR is an 8-bit microcontroller from the tinyAVR 1-series, utilizing the AVR 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 maximum clock frequencies up to 20 MHz and supports supply voltages between 1.8 V and 5.5 V. It includes a 10-bit ADC, an 8-bit DAC, and multiple communication interfaces including USART, SPI, and TWI. The component is housed in a 14-pin SOIC package.

Feature Summary

• Integrates Core Independent Peripherals (CIPs) such as TCA, TCB, and TCD timers for CPU-independent operation.
• Includes an Event System (EVSYS) for predictable inter-peripheral signaling without CPU intervention.
• Features Configurable Custom Logic (CCL) with programmable look-up tables for custom logic implementation.
• Supports Single-Pin Unified Program and Debug Interface (UPDI) for programming and debugging.

Applications

• Low-power sensor nodes requiring efficient data acquisition
• Battery-operated devices needing extended operational life
• Industrial control systems utilizing event-driven architectures
• Smart home automation controllers

Procurement Notes

Verify the specific suffix 'SSNR' corresponds to the 14-pin SOIC package and tape-and-reel packaging format. Confirm that the temperature grade matches the intended operating environment, as the series supports both -40°C to 105°C and -40°C to 125°C ranges. Ensure compatibility with UPDI-based debuggers and programmers for development.

Selection Notes

Select this model when 4 KB of Flash and 256 bytes of SRAM are sufficient for the application code and data storage requirements. Choose this variant over the ATTINY212 if higher memory capacity is needed within the same pin count. Consider the 14-pin SOIC package constraints regarding available I/O lines and physical board space compared to 8-pin or 20-pin alternatives.

Part Context

This component belongs to the Microchip tinyAVR 1-series family, which emphasizes low power consumption and advanced peripheral integration. The series shares architectural similarities with other members like the ATtiny414 and ATtiny814, differing primarily in memory sizes and pin counts. The 1-series introduces significant enhancements in analog performance and configurable logic compared to previous generations.

Replacement Considerations

Direct replacements within the same package and pinout include other variants from the tinyAVR 1-series such as the ATTINY414 or ATTINY814, provided memory requirements are met. Cross-generation replacements from the tinyAVR 0-series may require schematic and firmware modifications due to architectural differences.