Bosch Sensortec datasheet for the BMP180 digital barometric pressure sensor, document BST-BMP180-DS000-09, 656 KB PDF. The 09 suffix indicates the document revision.

Datasheet for the LM75, a digital temperature sensor and thermal watchdog that reports readings over a two-wire I2C or SMBus style interface.

Datasheet for the DS1307 serial real-time clock, provided as a 165 KB PDF. The chip keeps time and calendar data, communicates over the I2C bus, includes 56 bytes of…

Manual for PIC Basic Pro, the PBP compiler that lets you write firmware for Microchip PIC microcontrollers in a BASIC dialect, filed as a 383 KB PDF.

Datasheet for the Richtek RT3609BE, a dual-channel PWM controller with an I2C-style digital interface, filed here under ASRock boards.