ATTINY202-SSNR

Overview

The ATtiny202-SSNR is an 8-bit AVR microcontroller featuring 2 KB of Flash memory, 128 bytes of SRAM, and 64 bytes of EEPROM. It operates at a maximum clock frequency of 20 MHz within a voltage range of 1.8 V to 5.5 V. The device includes a 10-bit ADC with six channels, three timers/counters, and multiple communication interfaces including USART, SPI, and TWI. It utilizes a single-pin UPDI for programming and debugging, housed in an SOIC-8 package.

Feature Summary

• Integrates picoPower technology with configurable sleep modes and SleepWalking peripherals for optimized energy efficiency.
• Features a high-performance AVR RISC CPU capable of executing instructions in a single cycle at up to 20 MHz.
• Includes core-independent peripherals such as the Event System and Configurable Custom Logic (CCL) to offload tasks from the main CPU.

Applications

• Battery-powered sensor nodes requiring low standby current
• Simple industrial control systems utilizing I/O expansion
• Consumer electronics employing basic user interface logic

Procurement Notes

Verify that the SSNR suffix corresponds to the tape-and-reel packaging format required for automated surface-mount assembly processes. Confirm the specific temperature grade matches the operational environment requirements, as industrial variants are available. Ensure the ordering code aligns with the 2 KB Flash capacity variant rather than the 4 KB option.

Selection Notes

Select this component when a compact 8-pin footprint is necessary alongside essential analog-to-digital conversion capabilities. The inclusion of a Real-Time Counter and dedicated hardware multipliers supports time-critical applications without excessive CPU overhead. Consider the availability of internal oscillators with specified accuracy if external crystal resources are constrained by board space.

Part Context

This part belongs to the tinyAVR 0-Series family, which introduces core-independent peripherals designed to reduce active power consumption during peripheral operations. Unlike previous generations, this series emphasizes flexible event routing and advanced sleep modes to extend battery life in portable devices while maintaining processing performance.

Replacement Considerations

Direct pin-compatible replacements within the same package include the ATtiny402, which offers increased memory capacity. For legacy AVR architectures, the ATtiny20 may serve as a functional substitute but lacks the advanced peripheral features and lower power modes of the 0-Series.