BMP085 digital pressure sensor pinout

The BMP085 reports raw pressure and temperature values over I²C. The host applies calibration coefficients stored in the sensor.

LCC-8 · 5.0 × 5.0 mm

8 contacts Current package

Bosch Sensortec ·

LCC-8 · 5.0 × 5.0 mm

Transparent top view with pin 1 at the upper left. Follow the land pattern when designing a PCB. Scroll the map to reach all contacts.

Input · Clock inputs / oscillator

I²C clock. Connect to the host clock line with its bus pull-up.

Bosch Sensortec BMP085 Rev. 1.0 (July 2008), §§ 1, 3–5. Manufacturer document mirrored by jensd.dk.

Pin	Signal	Direction	Function
1	GND Supply return	Supply return	Connect to the common ground plane or bench return.
2	EOC Output	Output	End-of-conversion indicator. Leave open when timing conversion in software.
3	VDDA Supply input	Supply input	Analog rail for the pressure sensor and converter.
4	VDDD Supply input	Supply input	Digital supply. Set the I²C pull-up rail to this logic voltage.
5	NC None	None	No internal connection. Leave electrically open unless the package notes specify otherwise.
6	SCL Input	Input	I²C clock. Connect to the host clock line with its bus pull-up.
7	SDA Bidirectional	Bidirectional	Open-drain I²C data. The bus needs a pull-up to its logic rail.
8	XCLR Input	Input	Active-low master clear. Hold high for normal operation.

Fixed 7-bit address 0x77. Write a conversion command and read the result only when conversion completes.

Parameter	Limit	Conditions and source
Analog supply1.8–3.6 V	1.8–3.6 V	Operate within the specified ripple limit. Bosch Sensortec BMP085 Rev. 1.0 (July 2008), §§ 1, 3–5. Manufacturer document mirrored by jensd.dk.
Digital supply1.62–3.6 V	1.62–3.6 V	Use compatible bus levels and pull-ups. Bosch Sensortec BMP085 Rev. 1.0 (July 2008), §§ 1, 3–5. Manufacturer document mirrored by jensd.dk.
Pressure range300–1100 hPa	300–1100 hPa	Absolute pressure. Convert pressure to altitude only with an appropriate pressure reference. Bosch Sensortec BMP085 Rev. 1.0 (July 2008), §§ 1, 3–5. Manufacturer document mirrored by jensd.dk.

This map covers the ceramic LCC-8 device.

BMP085 manufacturer documentation· Bosch Sensortec BMP085 Rev. 1.0 (July 2008), §§ 1, 3–5. Manufacturer document mirrored by jensd.dk.