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ATTINY404-SSNR

MCHPATTINY404-SSNR

Microchip Technology
AVR tinyAVR™ 0, Functional Safety (FuSa) Microcontroller IC 8-Bit 20MHz 4KB (4K x 8) FLASH 14-SOIC
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Overview

The ATTINY404-SSNR is an 8-bit AVR microcontroller from the tinyAVR 0-series designed for industrial and functional safety applications. It operates up to 20MHz with 4KB of Flash and 256 bytes of RAM in a compact 14-pin SOIC package. This MCU integrates a hardware multiplier, a flexible Event System, and Configurable Custom Logic (CCL) to handle complex tasks without CPU intervention.

Why Choose This Part

This microcontroller offers a significant performance boost over older tinyAVR parts with its hardware multiplier and single-cycle I/O access. The Event System enables low-latency, CPU-independent communication between peripherals, which reduces power consumption and improves real-time response.

Applications

Safety-Critical Monitoring
Utilizes the Automated CRC memory scan (CRCSCAN) and Functional Safety (FuSa) features for reliable monitoring in industrial environments.
Sensor Interface
Interfacing with analog and digital sensors using the internal 16MHz oscillator and I2C/SPI interfaces for data acquisition.
Logic Gate Replacement
The internal Configurable Custom Logic (CCL) allows for the implementation of glue logic and simple state machines without external hardware.
Handheld Battery Devices
Optimized for portable electronics requiring low power consumption, featuring a standby current of approximately 0.71 uA.

Key Specifications

Speed 20MHz
RAM Size 256 x 8
Core Size 8-Bit
EEPROM Size 128 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 12
Core Processor AVR
Package / Case 14-SOIC (0.154", 3.90mm Width)
Data Converters A/D 10x10b
Oscillator Type Internal
Program Memory Size 4KB (4K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 105degC (TA)
Supplier Device Package 14-SOIC
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

Developers can use the MPLAB X or Microchip Studio IDEs alongside the XC8 compiler for software development. Programming and debugging are handled via the single-pin Unified Program and Debug Interface (UPDI), typically using a PICkit 4 or MPLAB Snap programmer. For rapid prototyping, the ATtiny404 Curiosity Nano evaluation kit provides a built-in debugger and full access to the I/O pins.

Also Consider

ATTINY414-SSNR MCHPMicrochip Technology - Provides a similar peripheral set but adds an Analog Comparator and additional timer options for more complex control loops.

Categories

Microcontrollers > AVR