ATTINY85 in ATtiny Family
The ATTINY85 family is a high-performance, low-power Microchip Technology 8-bit AVR RISC-based microcontroller sub-family. These devices combine 8KB ISP flash memory, 512B EEPROM, 512B SRAM, and 6 general-purpose I/O lines into a compact footprint. Designed for applications requiring minimal board space without sacrificing processing capability, the ATTINY85 is a staple in the maker community and industrial prototyping due to its efficient instruction set and extensive library support within the AVR ecosystem.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Package | Stock |
|---|---|---|
| ATTINY85-20SU (Microchip Technology) | SOIC-8 | 11,236 |
| ATTINY85-20SUR (Microchip Technology) | SOIC-8 | 21,812 |
| ATTINY85-20PU (Microchip Technology) | DIP-8 | 6,974 |
Variants within the ATTINY85 family are primarily distinguished by their physical packaging and thermal ratings. The 'PU' suffix denotes a plastic dual-in-line package (PDIP), ideal for breadboarding. The 'SU' and 'SUR' variants utilize small outline (SOIC) packages for surface-mount assembly, with 'R' indicating tape and reel packaging. Additionally, 'MU' variants offer the QFN/MLF package for the smallest possible PCB footprint. Some specific suffixes also indicate Functional Safety (FuSa) certifications for critical systems.
