ATTINY202-SSFR

Overview

The ATTINY202-SSFR is an 8-bit AVR microcontroller from the tinyAVR 0-Series, packaged in an 8-pin SOIC. It features 2 KB of Flash memory, 128 bytes of SRAM, and 64 bytes of EEPROM. The device operates at clock speeds up to 20 MHz with a supply voltage range of 1.8V to 5.5V. Key peripherals include a 10-bit ADC, USART, SPI, TWI, TCA, TCB, RTC, CCL, and Analog Comparator. It supports UPDI for programming and debugging.

Feature Summary

• Integrates Core Independent Peripherals (CIP) such as the Real-Time Counter (RTC) and Configurable Custom Logic (CCL) to offload tasks from the CPU.
• Supports SleepWalking functionality, allowing specific peripherals to wake the system independently without CPU intervention.
• Features a single-pin Unified Program and Debug Interface (UPDI) for simplified programming and debugging connections.
• Includes automated CRC memory scan capabilities to ensure data integrity within the Flash program memory.

Applications

• Battery-powered sensor nodes requiring low-power sleep modes
• Industrial control systems utilizing core-independent peripheral automation
• Smart home devices needing efficient I/O management via Event System
• Wearable electronics benefiting from picoPower technology

Procurement Notes

Verify the specific temperature grade and speed bin required for your application against the datasheet specifications. Confirm that the SOIC-8 package dimensions match your PCB footprint requirements. Ensure compatibility with UPDI-based programmers for firmware development. Check for any RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a balance of processing power and extreme low-power consumption is needed. The tinyAVR 0-Series is ideal for applications where the CPU must remain asleep most of the time while peripherals handle periodic tasks. Consider the 2 KB Flash limit for complex algorithms; larger variants like ATtiny402 may be necessary for more extensive codebases.

Part Context

This part belongs to the ATtiny202/402 family, which introduces Core Independent Peripherals to the AVR architecture. Unlike previous generations, these MCUs allow peripherals like the RTC and CCL to operate autonomously, significantly reducing active current consumption during background tasks.

Replacement Considerations

Direct pin-compatible replacements within the same series include the ATtiny402, which offers increased memory but maintains the same 8-pin SOIC package and peripheral set. For legacy upgrades, verify that existing code is compatible with the UPDI interface instead of ISP or JTAG.

FAQ

What is the maximum operating frequency of the ATTINY202-SSFR?

The device can run at up to 20 MHz using the internal RC oscillator.

How does the SleepWalking feature benefit power consumption?

SleepWalking allows specific peripherals to wake the MCU from sleep modes without waking the CPU, minimizing energy usage during idle periods.

Is external programming hardware required for development?

Yes, a UPDI programmer is required as the device uses a single-pin Unified Program and Debug Interface for all programming and debugging functions.