ZOE-M8B - Ultra-compact GNSS SiP module with Super-E (Super-Efficient) mode

Ultra small multi-GNSS SiP modules for battery powered wearable and portable devices

ZOE-M8B is u-blox's ultra small, highly integrated GNSS SiP (System in Package), measuring just 4.5 x 4.5 x 1.0 mm.

Making use of the Super-Efficient (Super-E) mode, ZOE-M8B offers an ideal balance between miniature size, low power consumption and good GNSS performance. ZOE-M8B uses up to 2.5 times less power than a traditional M8 GNSS module with concurrent GNSS reception in 1 Hz full power mode, while still maintaining good positioning and speed accuracy. An average power consumption over a typical 30-minute track will be as low as 25 mW, using AssistNow Offline data and an industrial antenna design (i.e. moderate-to-low signal levels).

The TCXO-based ZOE-M8B integrates a front-end SAW filter and an additional front-end LNA for increased jamming immunity and easier antenna integration. A passive antenna can be used to provide a highly integrated system solution with minimal eBOM.

Incorporating ZOE-M8B into customer designs is simple and straightforward thanks to the fully integrated design, single 1.8 V voltage supply, simple interface, and sophisticated interference suppression, which ensures maximum performance even in GNSS-hostile environments. In addition, the ZOE-M8B provides an SQI interface for optional external Flash, continuous data logging, and improved A-GNSS performance.

ZOE-M8B is based on the high performance u-blox M8 concurrent GNSS engine, which supports GPS / GLONASS / BeiDou / GalileoC, including message integrity protection, antijamming, and anti-spoofing. All of these features together provide reliable positioning in difficult environmental conditions, as well as in security attack scenarios.

ZOE-M8B with Super-E low power mode is an ideal and fully integrated SiP solution for battery powered wearable and portable devices requiring low power and small size with good GNSS performance.

  • Ultra small form factor measuring 4.5 x 4.5 x 1.0 mm
  • Complete concurrent GNSS receiver solution (SiP)
  • As low as 12 mW power consumption thanks to Super‑E mode
  • Ideal for passive antenna, due to built‑in SAW and LNA
  • Easy design‑in and manufacturing

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

Parameters Specifications
Receiver type

72-channel u-blox concurrent M8 engine

GPS/QZSS L1 C/A, GLONASS L10F , BeiDou B11, Galileo E1B/C¹


Max. Nav. update rate

Continuous mode:

Single GNSS: up to 18Hz

2 concurrent GNSS: up to 10Hz

Super-E mode (default):

Single GNSS: up to 4Hz

2 concurrent GNSS: up to 4 Hz


Continuous mode: 2.0m CEP

Super-E mode (default): 4.0m CEP


Cold starts: 26s

Aided starts: 2s

Reacquisition: 1s


Continuous mode:

Tracking & Nav: -167dBm

Cold starts: -148dBm

Hot starts: -157dBm

Super-E mode (default):

Tracking & Nav: -160dBm

Cold starts: -148dBm

Hot starts: -157dBm

Assistance GNSS

AssistNow GNSS Online

AssistNow GNSS Offline (up to 35 days)

AssistNow Autonomous(up to 6 days)

OMA SUPL & 3GPP compliant



RTC crystal

Optional, can be to external RTC Clock

Super-E mode Super Efficient mode for lowest power
Anti jamming Active CW detection and removal. Extra onboard SAW band pass filter
Memory ROM
SQI Flash (optional) for:

AssistNow Offline

AssistNow Autonomous, long term logging

Supported antennas Active and passive
Raw data Code phase output
Odometer Integrated in navigation filter

Up to 4 circular areas

GPIO for waking up external CPU

Spoofing detection


Signal integrity Signature feature with SHA 256
Data logging and data batching³ For position, velocity, time and odometer data
¹ Galileo only supported in continuous mode
³ External Flash required
Serial interfaces


1 SPI (Optional)

1 DDC (I²C compliant)

1 SQI interface (for optional Flash)

Digital I/O

1 EXTINT input

Time pulse Configurable: 0.25 Hz to 10 MHz
Protocols NMEA, UBX binary, RTCM
Electrical data
Supply voltage

1.71V to 1.89V

Power consumption (2 concurrent GNSS)*

40mA @ 1.8V (Continuous mode, 1Hz)

6.6mA @ 1.8V (Super-E mode, 1Hz)

Backup supply 1.4V to 3.6V
* Tracking
Environmental data, quality & reliability
Operating temperature -40°C to +85°C
RoHS compliant (lead free)
Qualification according to standard JESD47 / ISO 16750
Uses u-blox M8 chips qualified according to AEC-Q100
Moisture sensitivity level 3



51 pin S-LGA (Soldered Land Grid Array): 4.5 x 4.5 x 1.0mm, 0.04 g

Part Number Description Pack Size
ZOE-M8B u-blox M8 concurrent GNSS 51-pin S-LGA module, 1.8V, TCXO, ROM, SAW, LNA, 4.5 x 4.5 x 1mm
Reel of 1000
Support Products
u-blox M8 GNSS evaluation kit for ZOE-M8B

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Last updated: 14 November 2017