ATTINY461V-10MU

Overview

The Atmel ATTINY461V-10MU is an 8-bit AVR microcontroller featuring a 20-pin MLF/QFN surface-mount package. It operates at a maximum clock frequency of 10 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes 4 KB of in-system programmable Flash memory, 256 bytes of EEPROM, and 256 bytes of SRAM. Peripheral resources consist of one 8/16-bit Timer/Counter, one 8/10-bit High Speed Timer/Counter with three PWM outputs, an 11-channel 10-bit ADC, and a Universal Serial Interface (USI).

Feature Summary

• AVR enhanced RISC architecture executing most instructions in a single clock cycle for optimized power-speed performance.
• Integrated picoPower technology supporting dynamic frequency scaling and multiple low-power operating modes.
• On-chip analog comparator and programmable watchdog timer with independent oscillator for system reliability.

Applications

• Battery-powered sensor nodes requiring extended standby life.
• Low-cost industrial control systems within the ATtiny family ecosystem.
• Portable consumer electronics utilizing USI-based communication protocols.

Procurement Notes

Verify the specific suffix 'V' indicates the 1.8V minimum operating voltage variant and 'MU' denotes the 20-MLF/QFN package. Confirm the manufacturer source as Microchip Technology, which acquired Atmel. Ensure the component meets RoHS compliance standards required for your assembly process. Cross-reference the datasheet revision to confirm pinout compatibility with existing PCB layouts.

Selection Notes

Select this model when 4 KB of program memory and 256 bytes of data storage are sufficient for the application logic. The 10 MHz speed rating suits applications where processing demands do not require the higher frequencies available in other ATtiny variants. The 20-pin QFN package offers a compact footprint suitable for space-constrained designs compared to larger DIP or SOIC options.

Part Context

This component belongs to the ATtiny461A/461 series, designed for high-performance, low-power embedded applications. It shares architectural similarities with the ATtiny261 and ATtiny861, differing primarily in memory capacity. The device utilizes the standard AVR instruction set, ensuring software compatibility across the broader ATtiny family for developers familiar with the platform.

Replacement Considerations

The ATTINY461A-10MU is a direct functional equivalent with identical specifications. Verify if the 'V' suffix strictly implies voltage range differences or if it is interchangeable based on the specific design margin. Check for updated packaging options from Microchip if lead-free requirements have changed since the original Atmel production.