Microchip ATTINY412-SSFR 8-bit Microcontroller Datasheet and Application Overview

The Microchip ATTINY412-SSFR represents a powerful and efficient solution in the realm of 8-bit microcontrollers, packing modern features into a compact, low-power package. As part of the growing tinyAVR® 1-series family, it is engineered to deliver high performance for a wide array of embedded control applications, from consumer electronics and IoT nodes to industrial automation and automotive systems.

Core Architecture and Key Features

At its heart, the ATTINY412 utilizes an advanced 8-bit AVR® processor with a hardware multiplier, running at up to 20 MHz and capable of achieving up to 24 million instructions per second (MIPS). This performance is supported by 4 KB of Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM, providing ample resources for complex firmware.

A standout feature of this microcontroller is its Event System and Custom Logic (CCL). The integrated CCL blocks allow for the creation of simple logic functions directly in hardware, enabling peripheral-to-peripheral communication without CPU intervention. This drastically reduces power consumption and frees up the core for other tasks, making the system more responsive and efficient.

Enhanced Peripherals and Connectivity

The ATTINY412 is equipped with a rich set of peripherals. It includes a 16-bit timer/counter (TCA), a 10-bit ADC with up to 11 channels, and a USART that supports both SPI and I2C modes. A crucial peripheral for modern communication is the Unified Program and Debug Interface (UPDI), which serves as a single wire for both programming and debugging, simplifying the development process and reducing pin count.

Low-Power Performance

Designed for energy-sensitive applications, the ATTINY412 operates within a voltage range of 1.8V to 5.5V. It features multiple power-down sleep modes, including Standby and Power-Down, where consumption can be as low as 35 nA, allowing it to run for extended periods on battery power.

Application Overview

The combination of its small form factor (SOIC-8), robust peripheral set, and low-power operation makes the ATTINY412-SSFR exceptionally versatile.

IoT Sensor Nodes: Its ADC and low-power sleep modes are ideal for reading sensors and transmitting data wirelessly.

Consumer Electronics: Used in touch interfaces, LED control, and power management for devices like toys, remote controls, and accessories.

Industrial Control: The hardware CCL and robust timers are perfect for implementing safety logic, button debouncing, and motor control functions without software overhead.

System Management: Often employed as a Programmable Power Supply (PPS) controller or a dedicated fan controller in larger systems.

ICGOODFIND: The ATTINY412-SSFR is a highly integrated and cost-effective microcontroller that demonstrates how modern 8-bit architecture continues to evolve. Its blend of core performance, hardware-based logic, ultra-low power consumption, and a compact package makes it an outstanding choice for designers looking to add intelligent control to space and power-constrained applications.

Keywords: 8-bit Microcontroller, Low-Power, Custom Logic (CCL), UPDI Interface, tinyAVR®