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Contents

README

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BNO085

CEVA · Accelerometers · LGA-28(3.8x5.2)

BNO085 from CEVA, in a LGA-28(3.8x5.2). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RESV_NC unconnected Reserved pin, do not connect to any signal.
2 GND power_in Ground return for power supply.
3 VDD power_in Sensor power supply with operating range 2.4V to 3.6V.
4 BOOTN input Bootloader mode select, sampled at reset.
5 PS1 input Protocol select pin 1 for host interface configuration, sampled at reset.
6 PS0/WAKE input Protocol select pin 0 for host interface configuration or SPI wake signal after reset.
7 RESV_NC unconnected Reserved pin, do not connect to any signal.
8 RESV_NC unconnected Reserved pin, do not connect to any signal.
9 CAP passive External decoupling capacitor pad, connect 100nF capacitor to ground.
10 CLKSEL0 input Clock source selection input with internal pulldown, sampled at startup.
11 NRST input Active-low asynchronous reset input with minimum pulse width 10ns.
12 RESV_NC unconnected Reserved pin, do not connect to any signal.
13 RESV_NC unconnected Reserved pin, do not connect to any signal.
14 H_INTN output Active-low interrupt output to host device indicating BNO08X requires attention.
15 ENV_SCL bidirectional Environmental sensor I2C clock line, open-drain bidirectional.
16 ENV_SDA bidirectional Environmental sensor I2C data line, open-drain bidirectional.
17 SA0/H_MOSI input Lower address bit for I2C slave address (0x4A or 0x4B) or SPI MOSI data input, sampled at reset.
18 H_CSN input SPI chip select, active-low, selects BNO08X for SPI communication.
19 H_SCL/SCK/RX bidirectional Host interface clock/data line serving as I2C SCL, SPI SCK, or UART RX depending on protocol.
20 H_SDA/H_MISO/TX bidirectional Host interface data line serving as I2C SDA, SPI MISO, or UART TX depending on protocol.
21 RESV_NC unconnected Reserved pin, do not connect to any signal.
22 RESV_NC unconnected Reserved pin, do not connect to any signal.
23 RESV_NC unconnected Reserved pin, do not connect to any signal.
24 RESV_NC unconnected Reserved pin, do not connect to any signal.
25 GND power_in Ground return for power supply.
26 XOUT32/CLKSEL1 output 32.768kHz crystal oscillator output or clock source selection input with internal pulldown, sampled at startup.
27 XIN32 input 32.768kHz crystal oscillator input or external clock input.
28 VDDIO power_in I/O domain and microcontroller power supply with operating range 1.65V to 3.6V, must power up at or simultaneously with VDD.

Key specifications

Parameter Value
Manufacturer CEVA
Package LGA-28(3.8x5.2)
Category Sensors
Pins 28

CAD (KiCad official)

  • Symbol: BNO085
  • Footprint: Package_LGA:LGA-28_5.2x3.8mm_P0.5mm
  • 3D model: LGA-28(3.8x5.2) (KiCad packages3D, STEP)
  • 3D model files: bno085-etched.step / bno085-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bno085.step / bno085.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: CEVA datasheet (59 pp, sha256 34ac0ca1dda8fb0e, retrieved 2026-09-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF