ATTINY404-SSN

Overview

The ATtiny404-SSN is an 8-bit AVR microcontroller from Microchip Technology, housed in a 14-pin SOIC package. It features 4 KB of Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM. The device operates at clock speeds up to 20 MHz with supply voltages ranging from 1.8 V to 5.5 V depending on the speed grade. Key peripherals include a 10-bit ADC, USART, SPI, TWI, TCA, TCB, RTC, CCL, and Analog Comparator.

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 low-power operation through multiple sleep modes including Idle, Standby, and Power-down, alongside SleepWalking capabilities for peripheral-driven wake-ups.
• Features a single-pin Unified Program and Debug Interface (UPDI) for programming and debugging.
• Includes advanced analog features like a 10-bit ADC with selectable internal voltage references and an Analog Comparator.

Applications

• Battery-powered sensor nodes requiring low power consumption
• Industrial control systems utilizing core-independent peripherals
• Smart home devices needing efficient I/O management
• Wearable electronics with strict size and power constraints

Procurement Notes

Verify the specific temperature grade required for your application, as options exist for -40°C to 105°C and -40°C to 125°C. Confirm the speed grade matches your voltage and frequency requirements. Ensure the SOIC-14 package dimensions align with your PCB footprint. Check for RoHS compliance status if mandated by your project specifications.

Selection Notes

Select the ATtiny404-SSN when 4 KB of Flash is necessary compared to the 2 KB variant. Consider the 14-pin SOIC package for surface mount applications requiring more I/O lines than 8-pin packages offer. Evaluate the need for specific peripherals like the RTC or CCL which are unique to this series. Compare against other AVR 0-series devices if different memory sizes or pin counts are suitable.

Part Context

The ATtiny404 belongs to the tinyAVR 0-Series family, designed for cost-sensitive and power-efficient embedded applications. It shares architectural similarities with the ATtiny204 but offers double the program memory. The series emphasizes simplicity and ease of use through the UPDI interface and integrated core-independent peripherals.

Replacement Considerations

ATtiny204-SSN: Offers similar functionality but with reduced Flash and SRAM capacity.

FAQ

What is the maximum operating frequency of the ATtiny404-SSN?

The ATtiny404-SSN can operate at frequencies up to 20 MHz, depending on the supply voltage and selected speed grade.

How many programmable I/O lines does the ATtiny404-SSN provide?

The device provides 12 programmable I/O lines within its 14-pin SOIC package.

Does the ATtiny404-SSN support hardware multiplication?

Yes, it includes a two-cycle hardware multiplier to accelerate arithmetic operations.