Complete datasheet for the ATmega16 AVR microcontroller in a 2.73 MB PDF. Chapters cover the pinout, memory, clock options, timers, ADC, USART, SPI, TWI, JTAG, fuse and lock bits plus electrical characteristics. Technicians rely on it to locate supply and oscillator pins, check ADC reference wiring and verify reset behaviour when a board will not start. Before rewriting the flash with an ISP or JTAG programmer, read and save the existing contents and note the fuse values.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @datasheet. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.