Datasheet for the Maxim MAX691 microprocessor supervisory circuit, which combines power-on reset generation, a watchdog timer, battery backup switchover and memory write…

Datasheet in PDF form, 1.61 MB, for the Microchip PIC16C710 and PIC16C711 microcontrollers.

Datasheet for the HCF4017, the CMOS decade counter and divider with ten decoded outputs, provided as a 380 KB PDF.

Datasheet for the SN74LS490, revision 5 of the document, stored as a compact 52.6 KB 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…

Microchip PIC16F62x datasheet, a 4.09 MB PDF covering the 18-pin flash microcontroller family that includes parts such as the PIC16F627 and PIC16F628.

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

Small PDF datasheet of 61.5 KB for the PG12864-Q display, a 128 by 64 dot graphic LCD module in the PG series, variant Q.

A 256 KB datasheet in PDF format carrying only the identifier SDLS199. The specific component is not stated; the SDLS prefix is typical of Texas Instruments logic…

Datasheet for the part numbered SM8521, 370 KB in PDF form; the file name does not identify the manufacturer or the function, so open the document to confirm what device…

The largest copy of the UG-2828GCEAF02 display module datasheet here, a 3.23 MB PDF, which may include extra drawings, application circuits or higher-resolution figures…

Short summary datasheet for the ATmega128 AVR microcontroller, 235 KB in PDF format. It generally contains the feature overview, 64-pin package pinout, pin descriptions…

An 804 KB full datasheet for the tiny15, consistent with the Atmel AVR ATtiny15 8-bit microcontroller. No revision appears in the name.

Summary datasheet for the tiny26, a 161 KB PDF whose s suffix denotes the abbreviated edition, matching the Atmel AVR ATtiny26 microcontroller.

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.

PDF datasheet, 1.17 MB, for the Microchip PIC16C62x series of 8-bit EPROM-based microcontrollers.

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 of 2.58 MB for the Microchip PIC16C5x series, the original baseline line of small 8-bit OTP or EPROM controllers found in older appliances, remotes and…

Datasheet for the Atmel ATxmega D4 series, the 44-pin devices of the AVR XMEGA D family.

Complete datasheet for the ATmega165 AVR microcontroller, a 3.15 MB PDF. The document covers the pinout, memory, clock system, timers, USI, USART, ADC, JTAG, fuse bits…

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.

Application note for C51 parts, the common shorthand for 8051-family microcontrollers, provided as a 492 KB PDF.

Complete datasheet for the ATmega162 AVR microcontroller in a 2.62 MB PDF. The document describes pin assignments, the external memory interface, timers, USARTs, the SPI…

Datasheet for an Atmel AT91SAM ARM-based microcontroller, 3.90 MB PDF. The name gives only the family prefix, so the exact device, such as SAM7 or SAM9, must be…

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 KB9022Q, an ENE Technology keyboard and embedded controller found on many notebook motherboards, in a compact 137 KB PDF.

Complete datasheet in PDF form, 1.23 MB, for the tiny26, which corresponds to the Atmel AVR ATtiny26 8-bit microcontroller. No revision is given in the name.

Summary datasheet for the mega16, 243 KB PDF, matching the Atmel AVR ATmega16 8-bit microcontroller; the s suffix marks the short edition.

Datasheet for the ENE KB9012QF, a keyboard and embedded controller widely fitted to laptops, as a 3.65 MB PDF.

ITE IT8512E datasheet, a 3.93 MB PDF for an embedded controller used in many notebooks to handle keyboard scanning, power sequencing, battery and fan control.

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…

Datasheet for the early ATmega103 AVR microcontroller, a 1.99 MB PDF. It documents the 64-pin pinout, memory, peripherals, programming modes and electrical…

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

Full datasheet for the Atmel ATmega8 8-bit AVR microcontroller, supplied as a 2.17 MB PDF.

UG-2828GCEAF02 display module datasheet, PDF, 1.34 MB, one of several copies of the same part documentation in this collection with slightly different file names.

Summary datasheet for the ATmega8535 AVR microcontroller, 217 KB in PDF format. The short edition generally lists features, pinouts for the DIP and surface-mount…

Summary edition of the ATmega8515 AVR microcontroller datasheet, a 182 KB PDF. It usually lists core features, pin configurations for each package, pin descriptions and…

Summary datasheet for the Atmel ATmega48, ATmega88 and ATmega168 family, indicated by the s suffix in the name.

Application note about the 8051 microcontroller architecture, stored as a 319 KB PDF without any vendor named in the title.

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