ATTINY441-MMHR

Overview

The ATTINY441-MMHR is an 8-bit AVR microcontroller featuring 4K bytes of in-system programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. It operates at speeds up to 16 MHz with a throughput of 16 MIPS. The device includes one 8-bit and two 16-bit timer/counters, a 10-bit ADC with 17 channels, two USARTs, SPI, and TWI interfaces. It supports industrial temperatures from -40°C to +85°C and utilizes a 20-pad VQFN package.

Feature Summary

• Advanced RISC architecture with single-cycle execution for high efficiency
• Integrated non-volatile memory with high endurance specifications
• Multiple low-power operating modes including Idle and Power-down
• Comprehensive peripheral set including dual USARTs and analog comparators

Applications

• Low power embedded control systems
• Sensor interface modules requiring ADC conversion
• Serial communication gateways using USART or SPI
• Industrial monitoring devices within specified temperature ranges

Procurement Notes

Verify the specific speed grade and package variant against project requirements before ordering. Confirm that the MMHR suffix corresponds to the correct reel packaging format if automated assembly is planned. Ensure compatibility with existing development tools and debuggers. Check for any recent lifecycle status updates regarding new design recommendations.

Selection Notes

Select this component when 4K Flash and 256-byte data memories are sufficient for the application logic. Consider the 16 MHz maximum frequency for processing speed requirements. Evaluate the availability of 12 programmable I/O lines against pin count needs. Verify that the VQFN package dimensions fit the PCB layout constraints.

Part Context

This part belongs to the ATtiny441/ATtiny841 family of 8-bit AVR microcontrollers manufactured by Microchip Technology. These devices utilize Atmel's high-density non-volatile memory technology and are designed for applications requiring a balance of performance and low power consumption. The family shares architectural similarities with other AVR enhanced RISC core devices.

Replacement Considerations

Public confirmed substitute part numbers include ATtiny441-MMH.