Microchip ATTINY404-SSNR: A Comprehensive Guide to Features and Applications

The Microchip ATTINY404-SSNR is a powerful and versatile 8-bit microcontroller from the enhanced ATtiny series, leveraging the modern AVR® processor architecture with hardware multiplier. Packaged in an SOIC-8 form factor, this device is engineered for space-constrained and cost-sensitive applications, delivering impressive performance and a rich set of peripherals.

Key Features

At its core, the ATTINY404 operates at up to 20 MHz and is built on a low-power picoPower® technology, enabling efficient operation at just 1.8V, making it ideal for battery-powered devices. It features 4 KB of Flash memory, 256 Bytes of SRAM, and 128 Bytes of EEPROM for data storage.

One of its standout capabilities is the integrated Event System (EVSYS). This powerful feature allows peripherals to communicate and trigger actions independently of the CPU, enabling advanced functionality and significantly reducing active power consumption. This is complemented by a suite of communication interfaces, including I2C, SPI (SUART), and a Configurable Custom Logic (CCL) block that allows for the creation of simple logic functions without using the core.

Other notable peripherals include:

A 10-bit Analog-to-Digital Converter (ADC) with up to 12 channels.

A 16-bit Timer/Counter (TCA) and a 10-bit High-Speed Timer/Counter (TCB).

Multiple sleep modes for ultra-low power operation.

Hardware-based CRC for data integrity checks.

Applications

The combination of its small size, low power, and robust feature set makes the ATTINY404-SSNR suitable for a vast array of applications:

Consumer Electronics: Remote controls, toys, and smart home sensors (e.g., temperature, humidity).

Industrial Systems: Sensor nodes, actuator control, and simple industrial interfaces.

Automotive: Interior lighting control, basic switches, and accessory modules.

Internet of Things (IoT): Compact endpoint devices that require analog sensing and digital control.

Wearable Technology: Fitness trackers and simple health monitors where size and power are critical.

ICGOOODFIND

The ATTINY404-SSNR stands out as a remarkably capable microcontroller in a tiny package. Its blend of core-independent peripherals like the Event System and Configurable Custom Logic, coupled with its ultra-low power profile, makes it an exceptional choice for designers looking to add intelligent control to compact, power-efficient products without compromising on features.

Keywords:

Low-Power Microcontroller

Event System (EVSYS)

Configurable Custom Logic (CCL)

picoPower Technology

8-bit AVR MCU