ATTINY461A-PU

Overview

The ATTINY461A-PU is an 8-bit AVR microcontroller featuring 4K bytes of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. It utilizes a fully static Advanced RISC architecture with up to 20 MIPS throughput at 20 MHz. The device includes a 10-bit ADC with 11 single-ended channels, two timer/counters, and a Universal Serial Interface. Operating voltage ranges from 1.8V to 5.5V across speed grades of 0–4 MHz, 0–10 MHz, and 0–20 MHz.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high efficiency
• High endurance non-volatile memory segments with significant write/erase cycle ratings
• Integrated 10-bit analog-to-digital converter supporting multiple channel configurations
• Comprehensive peripheral set including timers, PWM outputs, and serial communication interfaces

Applications

• Low-power embedded control systems requiring efficient processing
• Battery-operated devices utilizing extended sleep modes
• Sensor interface applications leveraging the integrated ADC
• Industrial control environments operating within industrial temperature ranges

Procurement Notes

Verify the specific ordering code matches the required package type and speed grade. Confirm that the component complies with RoHS directives and lead-free requirements. Ensure the selected variant supports the necessary operational voltage and temperature range for the intended application environment before finalizing procurement.

Selection Notes

Select this component when 4K program memory and 256 bytes of data storage are sufficient. Choose the PDIP package for through-hole mounting requirements. Consider the 20 MHz speed grade if operation between 4.5V and 5.5V is guaranteed. Evaluate power consumption specifications against active and power-down mode requirements for battery life optimization.

Part Context

This device belongs to the ATtiny261A/461A/861A family of low-power CMOS 8-bit microcontrollers based on the AVR enhanced RISC architecture. The family shares common core features while varying in memory sizes. The ATTINY461A-PU specifically denotes the 4K Flash variant housed in a 20-lead Plastic Dual Inline Package (PDIP).

Replacement Considerations

ATtiny261A-PU offers equivalent performance with reduced memory capacity. ATtiny861A-PU provides increased memory resources within the same package and pinout configuration.