ATTINY461-20PU

Overview

The ATTINY461-20PU is an 8-bit AVR microcontroller featuring a 20-pin PDIP package. It includes 4K bytes of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. The device supports a maximum clock frequency of 20 MHz at operating voltages between 4.5V and 5.5V, or 10 MHz between 2.7V and 5.5V. It integrates an 11-channel 10-bit ADC, two timers/counters, and a Universal Serial Interface.

Feature Summary

• Advanced RISC architecture with 123 instructions, most executing in a single clock cycle.
• Non-volatile memory with high endurance for Flash and EEPROM data retention.
• Integrated analog peripherals including a 10-bit ADC and on-chip analog comparator.
• Supports low-power operation through multiple sleep modes and power-down states.

Applications

• Embedded control systems requiring non-volatile data storage
• Sensor interface circuits utilizing the integrated ADC
• Industrial applications within the specified temperature range

Procurement Notes

Verify the specific suffix 'PU' corresponds to the 20-pin PDIP package and industrial temperature rating. Confirm the speed grade matches the required operational voltage and frequency constraints. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this model when a 20-pin through-hole package is required for prototyping or specific board layouts. Choose based on the need for 4K Flash memory and 256-byte RAM. Consider the 20 MHz performance capability if operating within the higher voltage range.

Part Context

This component belongs to the ATtinyAVR family, designed for cost-sensitive embedded applications. It utilizes Microchip's high-density non-volatile memory technology. The device is part of a series that shares architectural similarities but varies in memory size and pin count.

Replacement Considerations

Check for ATTINY461A-SU for surface mount equivalents. Verify ATTINY461-10SU for lower speed requirements. Confirm package compatibility before substituting with other ATtiny series members.