BMP180 digital pressure sensor pinout

The BMP180 reports raw pressure and temperature values over I²C. The host applies calibration coefficients stored in the sensor.

LGA-7 · 3.60 × 3.80 mm

7 contacts Current package

Bosch Sensortec ·

LGA-7 · 3.60 × 3.80 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.

Supply return · Ground

Connect to the common ground plane or bench return.

Bosch Sensortec BST-BMP180-DS000-12 Rev. 2.8, §§ 1, 3 and 6. Manufacturer document mirrored by the University of Utah.

Pin	Signal	Direction	Function
1	CSB None in I²C version	None in I²C version	Leave electrically open on the standard I²C device. This pad is chip select on the special-order SPI device.
2	VDD Supply input	Supply input	Analog rail for the pressure sensor and converter.
3	VDDIO Supply input	Supply input	Digital supply. Set the I²C pull-up rail to this logic voltage.
4	SDO None in I²C version	None in I²C version	Leave electrically open on the standard I²C device. This pad is the serial output on the special-order SPI device.
5	SCL Input	Input	I²C clock. Connect to the host clock line with its bus pull-up.
6	SDA Bidirectional	Bidirectional	Open-drain I²C data. The bus needs a pull-up to its logic rail.
7	GND Supply return	Supply return	Connect to the common ground plane or bench return.

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 BST-BMP180-DS000-12 Rev. 2.8, §§ 1, 3 and 6. Manufacturer document mirrored by the University of Utah.
Digital supply1.62–3.6 V	1.62–3.6 V	Use compatible bus levels and pull-ups. Bosch Sensortec BST-BMP180-DS000-12 Rev. 2.8, §§ 1, 3 and 6. Manufacturer document mirrored by the University of Utah.
Pressure range300–1100 hPa	300–1100 hPa	Absolute pressure. Convert pressure to altitude only with an appropriate pressure reference. Bosch Sensortec BST-BMP180-DS000-12 Rev. 2.8, §§ 1, 3 and 6. Manufacturer document mirrored by the University of Utah.

This map covers the standard I²C LGA-7 device. Bosch documents a special-order SPI version separately in the pin notes.

BMP180 manufacturer documentation· Bosch Sensortec BST-BMP180-DS000-12 Rev. 2.8, §§ 1, 3 and 6. Manufacturer document mirrored by the University of Utah.