Summary datasheet for the tiny2313, marked by the s suffix and a compact 166 KB PDF, corresponding to the Atmel AVR ATtiny2313.

Summary datasheet for the tiny15, matching the Atmel AVR ATtiny15 microcontroller, in a small 124 KB PDF indicated by the s suffix.

Complete datasheet, 1.09 MB PDF, for the tiny11 and tiny12, corresponding to the Atmel AVR ATtiny11 and ATtiny12 microcontrollers. The name gives no revision.

Short-form summary datasheet covering the Atmel ATmega329, ATmega3290, ATmega649 and ATmega6490 microcontrollers, AVR parts with integrated LCD controllers.

Condensed summary datasheet for the Atmel ATmega169 AVR microcontroller with integrated LCD driver, a 196 KB PDF.

Datasheet for the Atmel ATxmega256A3B, a specific AVR XMEGA microcontroller with 256 KB of flash in a 64-pin package.

Datasheet for the Atmel AT89C55, an 8051-family microcontroller with 20 KB of reprogrammable flash and 256 bytes of RAM, supplied as a 421 KB PDF.

A 91 KB PDF datasheet covering the AT89C51, the Atmel 8051-compatible microcontroller with flash program memory that turns up in many older industrial and consumer…

Reference for the Atmel AT45DB041B, a 4-megabit serial DataFlash memory as the name states, in a 233 KB PDF.

Datasheet for the tiny22, a name pointing to the Atmel AVR ATtiny22 microcontroller, provided as a 933-935 KB class PDF of 935 KB.

Full family datasheet, 1.66 MB PDF, for the tiny25, tiny45 and tiny85, consistent with the Atmel AVR ATtiny25/45/85 8-pin microcontrollers.

Summary datasheet, 249 KB PDF, for a group of mega parts listed as 640, 1281, 1280, 2561 and 2562, matching the Atmel AVR ATmega640/1280/1281/2560/2561 family; the final…

Combined datasheet for the Atmel ATmega48, ATmega88 and ATmega168 AVR microcontrollers, which share one pin-compatible family and differ mainly in flash, EEPROM and SRAM…

Datasheet covering the Atmel ATxmega D3 series, 64-pin parts in the cost-reduced AVR XMEGA D family.

Datasheet PDF of 426 KB identified only as doc6318, so the file name gives no clue about the component.

Datasheet in a 2.90 MB PDF, named only doc6310 and therefore not stating which component it covers.

Full Atmel datasheet for the AT89S8253, an 8051-compatible microcontroller with 12 KB of in-system programmable flash and 2 KB of onboard EEPROM.

Datasheet for the Atmel AT89S8252, an 8051-family microcontroller with 8 KB of downloadable flash, 2 KB of EEPROM and an SPI interface used for in-system programming.

Atmel datasheet for the AT89S53, an 8051-compatible microcontroller with 12 KB of in-system programmable flash and SPI serial programming.

Atmel datasheet for the AT89C55WD, an 8051-compatible microcontroller with 20 KB of flash, 256 bytes of RAM, three timers and a watchdog timer, as reflected by the WD…

Short summary version of the tiny28 datasheet, indicated by the s suffix and the small 139 KB size, matching the Atmel AVR ATtiny28 microcontroller.

Short-form datasheet, 189 KB PDF, for the tiny25, tiny45 and tiny85, matching the Atmel AVR ATtiny25/45/85 family of 8-pin microcontrollers that differ mainly in flash…

Datasheet PDF of 590 KB covering the tiny4, tiny5, tiny9 and tiny10, matching the Atmel AVR ATtiny4/5/9/10 family of very small 6-pin microcontrollers.

Datasheet in PDF form for the Atmel ATmega323, an older 8-bit AVR microcontroller with in-system programmable flash, EEPROM, SRAM and JTAG interface.

Complete datasheet for the Atmel ATmega128, a 64-pin 8-bit AVR microcontroller with 128 KB of flash, EEPROM, SRAM, two USARTs and JTAG.

Instruction set reference in PDF format, 758 KB; the name alone does not specify the architecture, though it sits alongside AVR documents and most likely is the Atmel…

Family manual for the Atmel AVR XMEGA A series, a 4.96 MB PDF that explains the CPU, DMA, event system, clocks, power management, timers, USART, SPI, TWI, ADC, DAC…

Datasheet labelled AT89C8252, an Atmel 8051-family microcontroller document of 316 KB; the same size as the AT89S8252 sheet suggests related or identical content, so…

Atmel datasheet for the AT89C4051, a compact 20-pin 8051-compatible microcontroller with 4 KB of flash and an onboard analog comparator.

PDF datasheet for the Atmel AT89C1051, the smallest member of the 20-pin 8051-compatible family, offering 1 KB of flash, 64 bytes of RAM and an analog comparator.

Full datasheet for the Atmel ATmega169 8-bit AVR microcontroller, with the name indicating coverage of silicon revisions A through E.

Datasheet for the Atmel ATxmega A1 series, the 100-pin members of the AVR XMEGA family.

Datasheet in PDF form, 246 KB, named only by the document number doc6272, so the file name gives no hint of the exact component.

PDF datasheet of 634 KB carrying only the reference doc6258, which does not reveal the device it covers.

Preliminary datasheet for the Atmel AT91SAM7S series of ARM7TDMI-based flash microcontrollers, a 10.5 MB PDF.

Datasheet for the Atmel AT89S52, one of the most popular 8051-compatible microcontrollers, with 8 KB of ISP flash, 256 bytes of RAM and three 16-bit timers.

PDF datasheet for the Atmel AT89S51, an 8051-compatible microcontroller with 4 KB of in-system programmable flash and 128 bytes of RAM.

Datasheet for the Atmel AT89C1051U, a 20-pin 8051-compatible microcontroller with 1 KB of flash; the U version adds a UART and second timer compared with the basic…

A 1.78 MB PDF datasheet for the tiny2313, consistent with the Atmel AVR ATtiny2313 microcontroller.

Complete 3.65 MB datasheet for the mega640, 1281, 1280, 2561 and 2560, consistent with the Atmel AVR ATmega640/1280/1281/2560/2561 family, the larger AVR parts in 64 and…