| Base Part Number | ATTINY861 |
| Connectivity | USI |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Data Converters | A/D 11x10b |
| EEPROM Size, RAM Size | 512 x 8 |
| Lead Free Status / RoHS Status | RoHS Compliant |
| Manufacturer Part Number | ATTINY861-15SZ |
| Mounting Type | Surface Mount |
| Number of I/O | 16 |
| Operating Temperature | -40 |
| Oscillator Type | Internal |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Packaging | Reel |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Program Memory Size | 8KB (4K x 16) |
| Program Memory Type | FLASH |
| Series | Automotive, AEC-Q100, AVR |
| Speed | 16MHz |
| Standard Package | 1,500 |
| Supplier Device Package | 20-SOIC |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |