ATTINY461-20MU

Overview

The ATTINY461-20MU is an 8-bit AVR microcontroller featuring a high-performance RISC architecture with up to 20 MIPS throughput at 20 MHz. It includes 4 KB of in-system programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. The device integrates an 11-channel 10-bit ADC, two timers/counters, and a programmable watchdog timer. Operating voltage ranges from 1.8V to 5.5V, supporting industrial temperatures from -40°C to +85°C.

Feature Summary

• Advanced RISC core executing most instructions in a single clock cycle for optimized power and speed
• Non-volatile memory segments with high endurance for program flash and data EEPROM
• Integrated analog subsystem including a 10-bit ADC with differential channels and an on-chip analog comparator

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications utilizing the wide operating temperature range
• Sensor interface circuits leveraging the multi-channel ADC capabilities

Procurement Notes

Verify the specific suffix 'MU' corresponds to the MLF package variant when sourcing. Confirm RoHS compliance status and lead times directly with authorized Microchip distributors or Atmel representatives. Ensure the ordering part number matches the required pin count and package dimensions for PCB layout compatibility.

Selection Notes

Select this component for designs needing a balance of processing speed and peripheral integration within a compact footprint. Consider the 20-pin MLF package for space-constrained surface-mount applications. Evaluate the 1.8V minimum supply requirement if operating in ultra-low voltage environments compared to standard 2.7V variants.

Part Context

This device belongs to the ATtiny family of 8-bit AVR microcontrollers manufactured by Atmel (now Microchip Technology). It shares architectural similarities with the ATtiny261A and ATtiny861A, differing primarily in memory capacity and pin configuration. The series is designed for cost-sensitive, low-power embedded control applications.

Replacement Considerations

The ATTINY461A-20MU serves as a direct functional replacement for the ATTINY461-20MU, offering updated specifications while maintaining pin compatibility.