ATTINY424-XU

Overview

The ATTINY424-XU is an 8-bit microcontroller from the Microchip tinyAVR 2 family, utilizing the AVR CPU with a hardware multiplier. It features 4 KB of Flash memory, 512 B of SRAM, and 128 B of EEPROM. The device operates at a maximum clock frequency of 20 MHz within a supply voltage range of 1.8 V to 5.5 V. It is housed in a TSSOP package (indicated by the 'X' suffix) and supports an industrial temperature range of -40°C to +85°C. Key peripherals include a 12-bit differential ADC with PGA, two USARTs, SPI, TWI, and an Event System.

Feature Summary

• Features a high-performance low-power AVR CPU running up to 20 MHz with single-cycle I/O access and a two-cycle hardware multiplier.
• Includes advanced analog capabilities such as a 12-bit differential ADC with Programmable Gain Amplifier (PGA) and multiple internal voltage references.
• Supports flexible inter-peripheral signaling through an integrated Event System and Configurable Custom Logic (CCL).
• Provides versatile communication interfaces including dual USARTs with auto-baud, host/client SPI, and TWI with dual address match.

Applications

• Industrial control systems requiring robust peripheral integration and event-driven processing.
• Battery-powered devices benefiting from low-power architecture and multiple sleep modes.
• Sensor interface applications utilizing the high-resolution differential ADC and programmable gain amplifier.
• Communication nodes employing USART or TWI protocols for data exchange.

Procurement Notes

Verify that the ordering suffix corresponds to the required package type and temperature grade. Confirm that the specific variant meets all electrical specifications for your application environment. Ensure compatibility with existing design tools and programming interfaces before finalizing procurement decisions.

Selection Notes

Select this component when a balance of moderate memory capacity and rich peripheral sets is required. Consider the tinyAVR 2 family benefits such as vertical migration compatibility and enhanced analog performance. Evaluate power consumption requirements against available sleep modes and oscillator options.

Part Context

This device belongs to the tinyAVR 2 family, designed for applications needing efficient code execution and low power consumption. It shares architectural similarities with other members like the ATtiny824, allowing for potential code reuse across different pin counts and memory sizes within the same family.

Replacement Considerations

Direct replacements within the same family include the ATtiny426 or ATtiny427, which offer increased pin counts and memory while maintaining feature compatibility. Verify pinout and memory size differences to ensure seamless integration into existing designs without code modification.