| Base Product Number | ATTINY406 |
| Category | Integrated Circuits (ICs) |
| Connectivity | I?C, SPI, UART/USART |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Data Converters | A/D 12x10b |
| EEPROM Size | 128 x 8 |
| Mfr | Microchip Technology |
| Mounting Type | Surface Mount |
| Number of I/O | 18 |
| Operating Temperature | -40?C ~ 105?C (TA) |
| Oscillator Type | Internal |
| Package | Tape & Reel (TR) |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Product Status | Active |
| Program Memory Size | 4KB (4K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 256 x 8 |
| Series | tinyAVR? 0, Functional Safety (FuSa) |
| Speed | 20MHz |
| Supplier Device Package | 20-SOIC |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |