Microchip AVR® DA series AVR128DA28-E/SO, 8-bit AVR MCU, 128KB Flash, 16K x 8 RAM, 512 x 8 EEPROM, 24MHz, 28-SOIC, -40°C to 125°C, 1.8V to 5.5V.
| Parameter | Value |
|---|---|
| Series | AVR® DA |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 5.5V |
| Operating temperature | -40°C~125°C(TA) |
| Speed | 24MHz |
| Package | Tube |
| RAM size | 16K x 8 |
| Core size | 8-Bit |
| EEPROM size | 512 x 8 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, SPI, UART/USART |
| Number of i (O) | 23 |
| Core processor | AVR |
| Case | 28-SOIC (0.295\", 7.50mm Width) |
| Data converters | A/D 10x12b; D/A 1x10b |
| Program memory size | 128KB (128K x 8) |
128 KB of Flash is generous for an 8-bit part — enough to hold a full bootloader, a Modbus or CANopen stack, and application logic without code banking. The 16 KB SRAM supports moderate data buffers (e.g., a 4 KB TCP/IP packet buffer plus sensor logs).
ROHS3 compliance is confirmed on the record, so it passes EU regulatory screening without an exemption review.
The AVR32DD28T-I/SS is a pin-compatible 8-bit AVR MCU in the same 28-SOIC footprint, but it carries 32 KB Flash (vs. 128 KB) and is rated only to 85°C, not 125°C. The AVR128DA28-E/SO remains the higher-density, extended-temperature option.