Datasheet for the TCRT5000 reflective optical sensor in its 8H variant as named, a 163 KB PDF.

Atmel datasheet for the AT91SAM7S64, an ARM7TDMI microcontroller with 64 KB of flash, 2.57 MB PDF.

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

Microchip PIC16F684 document in PDF form, notably small at 111 KB, which suggests it may be a summary, product brief or partial excerpt rather than the full datasheet.

Compact 632 KB PDF datasheet from Microchip covering the PIC16C64x and PIC16C66x microcontroller families, which include analog comparator features.

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.

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…

Summary datasheet for the ATmega325, ATmega3250, ATmega645 and ATmega6450 AVR microcontrollers, a 231 KB PDF.

Datasheet for the Texas Instruments TMS75176A, a differential bus transceiver for RS-485 and RS-422 style balanced data lines.

Datasheet for the Sanyo LB1845, a PWM current-controlled dual full-bridge driver for bipolar stepper motors found in printers, scanners and similar equipment.

Small PDF, roughly 11 KB, associated with the ICL8038 function generator chip in P (plastic package) form according to the name suffix.

A 16.0 MB binary whose name suggests a cleaned Management Engine image, though no device, brand or board number is given. The size fits a 128 Mbit SPI flash.

Output image for the Lenovo ThinkPad X1 Carbon 6th Gen, judging by the name, stored in a 5.73 MB RAR; outimage usually means a processed binary saved from a programmer…

Repair guide PDF for the ASUS Zenbook UX305UA, 880 KB, catalogued with schematics. The name suggests a service-oriented document, likely covering disassembly…

Firmware archive named only V301, which may be a version number; no brand, model or board is given, so the purpose has to be worked out from the contents.

Small archive of measurement references for laptop motherboards, apparently from an NB_parts collection.

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

CD4066 reference document, a 174 KB PDF for the CMOS quad bilateral analog switch. Listed as a schematic, though it is most likely the datasheet with pin diagram…

Datasheet PDF, 137 KB, for the 2SD1841, part of the Japanese 2SD range of NPN bipolar transistors, catalogued here under schematics.

An 88.0 KB PDF for the 2SD1838, a Japanese-registered NPN bipolar transistor, best treated as a datasheet even though it is indexed as a schematic.

Compact 37.6 KB PDF for the 2SD1834 transistor, an NPN bipolar part in the 2SD series, most likely a short datasheet rather than a circuit schematic.

English-language datasheet, as the _E suffix suggests, for the 2SD2260 NPN bipolar transistor, supplied as a 45.3 KB PDF in the schematic section.

The 2SD2225 transistor is described in this 44.3 KB PDF, listed as a schematic in the catalogue. The _E tag in the name refers to an edition of the document.

A 143 KB PDF catalogued as a schematic, covering the 2SD1801 semiconductor part. Under the Japanese JIS numbering system the 2SD prefix marks an NPN bipolar transistor…

Datasheet-type PDF of 308 KB for the 2SD2553, filed under schematics. The Japanese JIS designation 2SD identifies an NPN bipolar transistor intended for low-frequency…

Datasheet PDF for 5HN02N, roughly 41 KB. The name gives only the part designation, with N most likely marking a package option, and no board, model or brand.

PDF reference of 26.7 KB for the part 5HN01S. Catalogued with schematics, it concerns one discrete semiconductor, the S ending probably identifying a package variant.

Small 72 KB PDF giving the specifications of the 2SD2120 transistor, an NPN type by its Japanese JIS prefix.

Specification sheet in PDF, around 82 KB, for the 2SD1781K NPN transistor of the JIS 2SD series; the K suffix denotes a specific version of the base part.

PDF reference sheet for the 2SD1682 transistor, 150 KB, stored in the schematic category.

PDF document for the 2SD2028, 91.1 KB, filed in the schematic category. Only the part number is given.

The 3SK304 is covered by this 25.9 KB PDF, listed as a schematic though it is expected to be a component datasheet.

An 80.6 KB PDF named after the 3SK265, filed under schematics but most likely a datasheet for that single device.

Reference PDF of 71.2 KB for the 2SD1981 transistor, catalogued as a schematic. Japanese JIS numbering assigns the 2SD prefix to NPN bipolar parts designed for…

The 2SK2995 is the subject of this 418 KB PDF, filed among schematics but by its name a transistor datasheet.

For the 2SK2985 transistor, this 424 KB PDF is filed as a schematic but its name indicates a single-component datasheet.

Datasheet in PDF form for the 2SK2962, 385 KB in size and catalogued as a schematic. The 2SK series denotes N-channel FETs registered under the Japanese JIS scheme, so…

Very small 26.9 KB PDF for the 2SK2951, likely a short datasheet or summary page given its size.

Datasheet-style PDF, 137 KB, covering the 2SK2550 transistor even though the catalogue lists it as a schematic.

Part 2SK2399 is the subject of this 423 KB PDF, catalogued as a schematic but in all likelihood a datasheet, since under Japanese JIS numbering 2SK stands for an…