Microchip ATTINY412-SSNR: A Comprehensive Technical Overview

The Microchip ATTINY412-SSNR represents a powerful and versatile entry in the world of 8-bit microcontrollers, packing a significant feature set into an ultra-compact form factor. As part of the modern ATtiny series based on the AVR® processor architecture, it is engineered for cost-sensitive, space-constrained, and low-power applications, offering an impressive performance-per-watt ratio.

At its core, the ATTINY412-SSNR is built around the high-performance 8-bit AVR RISC CPU with a hardware multiplier, capable of running at speeds up to 20 MHz. This allows it to execute instructions in a single clock cycle, achieving a throughput approaching 20 MIPS, which is substantial for handling complex control tasks in its class. The device comes equipped with 4 KB of Flash memory for program storage, 256 bytes of SRAM for data manipulation, and 128 bytes of EEPROM for storing non-volatile parameters.

A standout feature of this microcontroller is its advanced Peripheral Touch Controller (PTC), which enables the implementation of capacitive touch interfaces without requiring external components. This makes it ideal for creating intuitive button, slider, and proximity sensing user interfaces in consumer appliances and control panels.

The ATTINY412-SSNR boasts a rich set of integrated peripherals designed to minimize external component count and system cost. These include:

Event System (EVSYS): Allows peripherals to communicate directly with each other without CPU intervention, enabling efficient and power-saving operation.

16-bit Timer/Counter Type B (TCB): Excellent for waveform generation and input capture.

16-bit Timer/Counter Type A (TCA): Supports PWM output for motor control and LED dimming.

USART with SPI mode: Facilitates serial communication with a wide range of sensors, displays, and other peripherals.

Voltage Level Monitor (VLM): Monitors the supply voltage and can trigger an interrupt or reset if the voltage drops below a predefined level, enhancing system reliability.

10-bit ADC (Analog-to-Digital Converter): For reading analog sensors and signals.

Housed in an SOIC-8 package, the "SSNR" suffix denotes the specific package and packaging type, making it suitable for automated PCB assembly. Its operating voltage ranges from 1.8V to 5.5V, and with its sophisticated sleep modes and ultra-low power consumption, it is exceptionally well-suited for battery-powered and energy-harvesting applications that demand long operational life.

ICGOODFIND: The Microchip ATTINY412-SSNR is a highly integrated and power-efficient 8-bit MCU that punches well above its weight. Its combination of a capable CPU, touch sensing, a robust set of peripherals, and its operation over a wide voltage range makes it an exceptional choice for modern embedded designs requiring a compact, affordable, and responsive microcontroller for consumer, industrial, and IoT applications.

Keywords:

1. 8-bit AVR MCU

2. Capacitive Touch (PTC)

3. Ultra-Low Power

4. Peripheral Event System

5. SOIC-8 Package