HMC5883L three-axis magnetometer pinout

The HMC5883L measures three magnetic axes using an I²C interface. The bare sensor requires external capacitors for the internal set/reset strap.

LPCC-16 · 3 × 3 mm

16 contacts Current package

Honeywell ·

LPCC-16 · 3 × 3 mm pinout

LPCC-16 · 3 × 3 mm

Transparent top view with pin 1 at the upper left, as shown in the pin configuration. Scroll the map to reach all contacts.

Selected pin details

12 · SETC

Capacitor terminal · Control

Driver-side connection of the 0.22 µF set/reset capacitor.

Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.

Electrical limits · Link to this pin

All 16 pins

Pin	Signal	Direction	Function
1	SCL Input	Input	I²C clock. Connect to the host clock line with its bus pull-up.
2	VDD Supply input	Supply input	Device supply. Place the bypass capacitor close to this pin.
3	NC None	None	No internal connection. Leave electrically open unless the package notes specify otherwise.
4	S1 Tie high	Tie high	Tie to VDDIO in the recommended circuit.
5	NC None	None	No internal connection. Leave electrically open unless the package notes specify otherwise.
6	NC None	None	No internal connection. Leave electrically open unless the package notes specify otherwise.
7	NC None	None	No internal connection. Leave electrically open unless the package notes specify otherwise.
8	SETP Capacitor terminal	Capacitor terminal	Connect the positive side of the set/reset strap network through the recommended ceramic capacitor to SETC.
9	GND Supply return	Supply return	Connect to the common ground plane or bench return.
10	C1 Reservoir node	Reservoir node	Connect a 4.7 µF low-ESR reservoir capacitor from this pin to ground.
11	GND Supply return	Supply return	Connect to the common ground plane or bench return.
12	SETC Capacitor terminal	Capacitor terminal	Driver-side connection of the 0.22 µF set/reset capacitor.
13	VDDIO Supply input	Supply input	Digital interface supply. Match the host interface voltage.
14	NC None	None	No internal connection. Leave electrically open unless the package notes specify otherwise.
15	DRDY Output	Output	Optional data-ready output. It is internally pulled high and pulses low when measurement data is deposited.
16	SDA Bidirectional	Bidirectional	Open-drain I²C data. The bus needs a pull-up to its logic rail.

Signal assignments

I²C

Fixed 7-bit address 0x1E. Burst reads retrieve signed values in X, Z, Y order.

Electrical limits

Parameter	Limit	Conditions and source
Core supply VDD2.16–3.6 V	2.16–3.6 V	Place a local 100 nF bypass capacitor. Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.
Interface supply VDDIO1.71 V to VDD	1.71 V to VDD	Pull bus signals up to VDDIO. Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.
I²C clock400 kHz maximum	400 kHz maximum	Honeywell uses 2.2 kΩ pull-ups in its reference design. Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.

Models and documents

This map covers Honeywell’s bare HMC5883L in LPCC-16. Confirm the chip identity on boards sold with similar names.

HMC5883L: Honeywell 16-pin leadless chip carrier.

HMC5883L manufacturer documentation· Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.