EmbeddedRelated.com
    Parts    ATTINY816-MNR
ATTINY816-MNR

MCHPATTINY816-MNR

Microchip Technology
AVR tinyAVR™ 1, Functional Safety (FuSa) Microcontroller IC 8-Bit 20MHz 8KB (8K x 8) FLASH 20-VQFN (3x3)
Active17,003 in stock
Datasheet Digi-Key Compare Prices

Overview

The ATTINY816-MNR is a high-performance 8-bit AVR microcontroller featuring 8KB of Flash and a 20MHz clock speed in a compact 3x3mm VQFN package. Part of the tinyAVR 1 series, it is designed for functional safety (FuSa) applications and includes Core Independent Peripherals that reduce CPU overhead for timing and control tasks.

Why Choose This Part

This MCU provides a hardware multiplier and Core Independent Peripherals (CIPs), allowing it to handle complex math and logic with minimal power consumption. Its 20-pin VQFN package offers 18 I/O pins in a tiny footprint, making it ideal for space-constrained PCB designs requiring flexible connectivity like LINbus or IrDA.

Applications

Capacitive Touch Interfaces
Utilizes the integrated Peripheral Touch Controller (PTC) with Driven Shield+ technology for robust buttons, sliders, and wheels.
Safety-Critical Monitoring
Employs the hardware CRC memory scan and Windowed Watchdog Timer (WWDT) to meet functional safety requirements in industrial environments.
Sensor Signal Conditioning
Leverages the internal 16/20 MHz oscillators and accurate analog features for local data processing in distributed sensor nodes.
System Supervisor
Acts as a low-power housekeeping MCU using the Event System to trigger actions between peripherals without waking the core.

Key Specifications

Speed 20MHz
RAM Size 512 x 8
Core Size 8-Bit
EEPROM Size 128 x 8
Peripherals Brown-out Detect/Reset, POR, WDT
Connectivity I2C, IrDA, LINbus, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 18
Core Processor AVR
Package / Case 20-VFQFN Exposed Pad
Data Converters A/D 12x10b; D/A 1x8b
Oscillator Type Internal
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 105degC (TA)
Supplier Device Package 20-VQFN (3x3)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

Development is supported by the Microchip Curiosity Nano (ATtiny816-CNANO) evaluation kit and the MPLAB X or Microchip Studio IDEs. Programming and debugging are performed via the single-pin Unified Program and Debug Interface (UPDI), typically using an MPLAB PICkit 4 or Snap debugger.

ATTINY816 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Speed Package Temp Range Voltage Stock
ATTINY816-MNR (this part) 20M VFQFN-20 -40degC ~ 105degC .. 1.8V 17,003
ATTINY816-SNR 20M SOIC-20 -40degC ~ 105degC .. 1.8V 2,369
ATTINY816-MFR 16M VFQFN-20 -40degC ~ 125degC .. 2.7V 24,548

Also Consider

ATTINY1616-MNR MCHPMicrochip Technology - Provides double the Flash memory (16KB) in the same 20-pin VQFN footprint for more complex firmware requirements.
STM8L052C6T6 STMicroelectronics - An alternative 8-bit architecture focused on ultra-low power consumption with integrated LCD driving capabilities.