ATMEGA128A-AU AI Analysis:
Datasheet, Specs, Alternatives & ECAD

It features 128KB Flash, 4KB SRAM, 4KB EEPROM, 53 I/O lines, 16MHz max clock, and an 8-channel 10-bit ADC.

Engineers should check the errata section, specifically regarding potential interrupt loss during asynchronous timer writes and JTAG IDCODE behavior.

Yes, it includes an ATmega103 compatibility mode selectable by a fuse, allowing it to replace the older ATmega103 in existing designs.

The ATmega128A is a mature, widely available product from Microchip, generally considered low-risk for supply.

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: Low; readiness: easy.

Use the ATMEGA128A-AU datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about ATMEGA128A-AU pinout to locate pins, power rails, and interface signals before layout.