ATTINY461A-SUR

Overview

The ATTINY461A-SUR is an 8-bit AVR microcontroller featuring a 20-pin SOIC package. It includes 4K bytes of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. The device supports up to 20 MHz throughput at 4.5V to 5.5V supply voltage. It provides 16 programmable I/O lines, an 11-channel 10-bit ADC with differential inputs, and a Universal Serial Interface.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high efficiency
• High endurance non-volatile memory segments with specified write/erase cycles
• Integrated analog peripherals including a 10-bit ADC with programmable gain and an on-chip analog comparator
• Supports multiple software-selectable power saving modes to optimize energy consumption

Applications

• Low-power embedded control systems requiring in-system programming
• Applications utilizing capacitive touch sensing interfaces via QTouch Library support
• Industrial environments operating within the industrial temperature range

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's current documentation to confirm package type and tape & reel configuration. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the speed grade and voltage specifications with your system design constraints before procurement.

Selection Notes

Select this component when 4K bytes of program memory and 256 bytes of data storage are sufficient for the application logic. Consider the 20 MHz maximum frequency capability relative to the required operating voltage range. Evaluate the availability of the 11-channel ADC and timer resources against peripheral requirements.

Part Context

This part belongs to the ATtinyx61A series of 8-bit microcontrollers based on the AVR enhanced RISC architecture. The series offers variations in memory size, with this specific model providing 4K bytes of Flash. It shares core features such as the 32 general purpose working registers and static operation characteristics with other members of the family.

Replacement Considerations

ATtiny461A-SU