Programming specification from Microchip describing how to program the flash and data EEPROM memory of PIC16F87X microcontrollers, supplied as a 201 KB PDF.

Datasheet for the Microchip PIC16F818 and PIC16F819, 18-pin flash microcontrollers, supplied as a 2.97 MB PDF.

A 2.83 MB complete datasheet for the mega64, corresponding to the Atmel AVR ATmega64 microcontroller in a 64-pin package. No revision is stated in the name.

Datasheet for the Microchip PIC16CE62x family, 1.12 MB, covering OTP microcontrollers that integrate EEPROM data memory alongside comparators.

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…

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

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

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 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.

Datasheet for the Microchip PIC16LC74B, a compact 615 KB PDF. The LC prefix indicates the low-voltage version of the PIC16C74B, with an extended supply range suited to…

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

Datasheet in PDF form (127 KB) for the AT89C52, an Atmel microcontroller from the 8051-compatible family with on-chip flash program memory.

Condensed 235 KB datasheet for the mega32, corresponding to the Atmel AVR ATmega32 microcontroller, with the s suffix indicating the summary version.

Summary edition of the ATmega165 AVR microcontroller datasheet, a 252 KB PDF. Short versions usually present the feature list, pin configuration, pin descriptions…

Microchip datasheet for the dsPIC30F4013 digital signal controller, a 16-bit device combining a microcontroller with DSP capabilities, in a 5.22 MB PDF.

Datasheet for the ATmega128A AVR microcontroller, a 2.68 MB PDF. The A suffix denotes the revised version of the ATmega128, and the document covers its 64-pin pinout…

Datasheet for the classic Microchip PIC16C84, an early 18-pin microcontroller with electrically erasable program memory, delivered as a 961 KB PDF.

Datasheet for the legacy ATmega163 AVR microcontroller, a 2.15 MB PDF file. It documents the pin layout, memory organisation, timers, ADC, serial interfaces, programming…

Datasheet covering the Microchip PIC18Fxx20 microcontroller family, a 7.04 MB PDF document.

Datasheet PDF of 3.36 MB covering the mega16, mega32 and mega64 M1 variants, matching the Atmel AVR ATmega16M1/32M1/64M1 family aimed at automotive and motor control use…

Datasheet for the Microchip PIC16C55x family, a 2.18 MB PDF. These are 18-pin OTP or EPROM microcontrollers, and the x placeholder indicates multiple related part…

Datasheet for the Microchip PIC16F84A, a classic 18-pin flash microcontroller with data EEPROM, provided as a 1.46 MB PDF.

Combined Microchip datasheet for the PIC16C62B and PIC16C72A microcontrollers, provided as a 2.07 MB PDF.

Datasheet for the older ATmega161 AVR microcontroller, a 1.65 MB PDF document. It details pin functions, the memory map, peripherals such as timers and UARTs…

Microchip datasheet for the PIC18F1220 and PIC18F1320, 18-pin PIC18 flash microcontrollers, about 5.48 MB.

Family manual for the Atmel AVR XMEGA D series, a 5.25 MB PDF describing the core, memories, clock system, power management, ports, timers, communication peripherals…

PDF datasheet for the Microchip PIC16F628 flash microcontroller, 1.68 MB in size. It describes the pin functions, internal oscillator, comparators, USART, timers…

A 1.88 MB PDF datasheet for the Microchip PIC16C71x family, PIC16 microcontrollers with an 8-bit analog-to-digital converter, the x covering several members.

Datasheet for the Microchip PIC16C433, provided as a 2.43 MB PDF file. The document contains the device pinout, memory organisation, peripheral descriptions, instruction…

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.

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.

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 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 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…

Datasheet covering Microchip PIC12C5xx 8-pin microcontrollers, a widely used baseline family with EPROM or OTP program memory, provided as a 1.57 MB PDF.

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

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…