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STMicroelectronics TESEO-LIV4F
- Part No.:
- TESEO-LIV4F
- Manufacturer:
- STMicroelectronics
- Category:
- RF Receivers
- Package:
- 18-SMD Module
- Datasheet:
-
TESEO-LIV4F.pdf
- Description:
- DISCRETE
- Quantity:
- Payment:
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Product details
Overview
TESEO-LIV4F from STMicroelectronics is a standalone dual-band GNSS module integrating the Teseo IV single-die receiver IC, supporting simultaneous GPS/Galileo/GLONASS/BeiDou/QZSS and IRNSS-ready operation. It delivers submeter horizontal accuracy (CEP 50%, 24h static), -162 dBm L1/L5 tracking sensitivity with external LNA, 10 Hz max fix rate, and real-time assisted GNSS via RTCM v3 input for rapid TTFF in weak-signal environments - deployed in vehicle tracking, emergency call systems, and fleet management.
For engineers reviewing the TESEO-LIV4F datasheet, TESEO-LIV4F pinout, TESEO-LIV4F application, or TESEO-LIV4F equivalent, key selection criteria include its LCC-18 package footprint, dual-band L1+L5 concurrent acquisition, embedded TCXO + RTC for <1.5 s hot start, VCC/VBAT 3.0–3.63 V supply range, and NMEA/I²C/UART interface support with firmware-configurable I²C address.
Technical Context
The TESEO-LIV4F implements a multi-constellation, multi-frequency GNSS baseband processor with dedicated acquisition engines for GPS L1C/A & L5C, Galileo E1 & E5a, BeiDou B1i & B2a, GLONASS L1OF, and QZSS L1C/A. Its real-time assisted GNSS (RT-AGNSS) architecture accepts server-provided ephemeris data via proprietary NMEA commands to reduce TTFF under obstructed conditions.
It integrates a temperature-compensated crystal oscillator (TCXO) for RF downconversion stability and a dedicated always-on RTC domain powered by VBAT, enabling 10 μA standby current and fast wake-up. Antenna power supervision on pin 14 includes short/open-circuit detection with NMEA status reporting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| GNSS Constellations | GPS L1/L5, Galileo E1/E5a, GLONASS L1OF, BeiDou B1i/B2a, QZSS L1, IRNSS-ready - enables global coverage and redundancy in urban canyons |
| Horizontal Accuracy | 0.7–0.8 m CEP 50% (24h static, roof antenna) - meets submeter positioning requirements for asset tracking and ADAS-adjacent telematics |
| Tracking Sensitivity | -162 dBm (L1/L5, with external LNA) - supports reliable acquisition indoors or under dense foliage |
| Time to First Fix | 1.44 s (hot), 20.0 s (warm), 28.5 s (cold) - accelerated by embedded RTC and TCXO for low-latency location services |
| Supply Voltage | VCC/VBAT: 3.0–3.63 V - compatible with standard 3.3 V industrial power rails and battery-backed backup |
| Current Consumption | 48.8 mA (GNSS L1+L5 tracking), 10 μA (standby with RTC active) - enables multi-year battery life in portable trackers |
| Operating Temperature | -40 °C to +85 °C - qualified for automotive under-hood, outdoor telematics, and public transport deployments |
Pinout & Package
Tiny LCC-18 surface-mount package (9.7 × 10.1 mm), RoHS-compliant, reflow-solderable per JEDEC J-STD-020 (peak 245 ±5 °C). Includes integrated SAW filter and LNA; requires active antenna with gain <36 dB and NF <1.5 dB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 12 | GND / GND_RF | Digital and RF ground planes - must be connected to separate low-impedance ground pours to minimize noise coupling |
| 2 | UART-TX | Asynchronous serial output (NMEA/UBX) - left floating if unused; supports 115.2 kbps default baud |
| 3 | UART-RX | Asynchronous serial input - accepts host configuration commands and RTCM v3 assistance data |
| 4 | PPS | Pulse-per-second timing output (1 Hz, ±20 ns jitter) - used for time synchronization in telematics and emergency call timestamping |
| 5, 18 | WakeUp / PRG | External interrupt inputs - trigger deep-standby exit or firmware programming mode; require pull-up resistors (18–84 kΩ) |
| 6, 8 | VBAT / VCC | Backup and main 3.0–3.63 V supplies - VBAT maintains RTC during main power loss; both require local 100 nF + 4.7 μF decoupling |
| 9 | nReset | Active-low hardware reset - asynchronous, level-sensitive; pulled high via external resistor when not used |
| 11, 14 | RF_IN / VCC_RF | Antenna input and active antenna bias - VCC_RF = VCC (pin 8); includes open/short-circuit detection with NMEA status reporting |
| 16–17 | I2C_SDA / I2C_SCL | Configurable I²C slave interface (100/400 kHz) - supports NMEA output only; address set via firmware configurator |
Key Features
| Feature | Design Value |
|---|---|
| Dual-band L1+L5 concurrent processing | Enables ionospheric error mitigation and improved multipath resilience - critical for urban navigation and safety-critical location reporting |
| Embedded TCXO + dedicated RTC domain | Reduces hot-start TTFF to ≤1.44 s and maintains time continuity during VCC interruption - essential for emergency call (eCall) compliance |
| Real-time assisted GNSS (RT-AGNSS) | Accepts RTCM v3 messages (e.g., MSM7, ephemerides) via UART to cut cold-start TTFF by >50% in signal-challenged environments |
| Firmware upgrade & runtime configuration | Field-upgradable binary images and parameter ID-based configuration (via Teseo-Suite or host NMEA commands) - eliminates hardware redesign for feature updates |
| Antenna health monitoring | VCC_RF current sensing reports OPEN/OK/SHORT status in NMEA $PSTMAA sentence - enables automated diagnostics in remote asset trackers |
Applications
| Vehicle Tracking | Emergency Call (eCall) |
|---|---|
|
Use Scenario: Real-time GPS/Galileo positioning of commercial fleets across Europe and Asia. IC Role / Device Role / Timing Role: Primary GNSS engine delivering NMEA GGA/RMC sentences and PPS-synchronized timestamps to cellular modem. Use Value: Submeter accuracy and L1+L5 dual-band operation ensure reliable location lock in tunnels and urban canyons, meeting EU eCall Phase 2 latency requirements. |
Use Scenario: Automatic crash notification system triggering within 100 ms of impact detection. IC Role / Device Role / Timing Role: Standalone timing and positioning source; RTC maintains precise UTC time during main power loss to timestamp impact event. Use Value: 10 μA standby current and guaranteed -40 °C to +85 °C operation enable always-on readiness without battery drain in parked vehicles. |
| Asset & Pet Tracking | Fleet Management Telematics |
|
Use Scenario: Battery-powered pet collar reporting location every 5 minutes via LPWAN. IC Role / Device Role / Timing Role: Low-power GNSS measurement engine; uses RT-AGNSS to achieve <5 s TTFF on intermittent wake-ups. Use Value: 48.8 mA tracking current and firmware-configurable fix rate extend battery life to >1 year on 1000 mAh cells. |
Use Scenario: Integrated telematics control unit logging driver behavior, fuel use, and geofence violations. IC Role / Device Role / Timing Role: Positioning and timing co-processor feeding CAN bus with synchronized location + speed + heading data. Use Value: Embedded flash stores firmware and configuration; I²C interface allows compact integration without additional UART routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GNSS module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| u-blox UBX-M8030-KT | L1-only, no L5 support; -160 dBm tracking; 2.5 × 2.5 mm WLCSP vs. 9.7 × 10.1 mm LCC-18 | Lacks dual-band ionospheric correction - less accurate in high-latitude or tropical regions | Prefer for space-constrained wearables where L5 is non-critical and cost is primary |
| Quectel L86 | GPS/GLONASS only; no Galileo/BeiDou/QZSS; -165 dBm tracking but no RTC or TCXO integration | No eCall-compliant timing domain; requires external RTC and crystal for hot-start optimization | Prefer for legacy GPS-only deployments with minimal firmware update needs |
Compared with UBX-M8030-KT and L86, TESEO-LIV4F uniquely combines L1+L5 multi-constellation support, embedded TCXO+RTC, and certified CE/RED compliance in a single module - reducing BOM count and qualification effort for safety-critical telematics.
Availability
TESEO-LIV4F is available at Aetrix Electronics and suitable for vehicle tracking, emergency call (eCall) systems, asset monitoring, and fleet telematics requiring stable component supply across automotive, logistics, and public transport sectors.
Supply support for TESEO-LIV4F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power management ICs, and analog/mixed-signal devices for industrial, automotive, and consumer markets.
TESEO-LIV4F belongs to ST's Teseo GNSS product line, engineered specifically for low-power, high-accuracy standalone positioning in safety-critical and battery-operated applications - emphasizing certification readiness, firmware flexibility, and seamless integration into host systems.
FAQ
Does TESEO-LIV4F support raw GNSS measurements for RTK post-processing?
Yes, TESEO-LIV4F outputs GNSS raw measurement data including pseudorange, carrier phase, Doppler, and SNR via proprietary UBX binary protocol over UART. These measurements are compatible with open-source RTK post-processing tools like RTKLIB when paired with base station data, though the module itself does not perform real-time kinematic computation onboard.
What antenna interface configuration is required for optimal performance?
TESEO-LIV4F requires an active GNSS antenna with DC bias capability (supplied via pin 14, VCC_RF). The antenna must have gain ≤36 dB and noise figure ≤1.5 dB. A 50 Ω impedance-matched coaxial connection to pin 11 (RF_IN) is mandatory; PCB layout must isolate RF traces from digital noise sources and include proper ground vias around the RF pad.
How is firmware updated, and what tools are needed?
Firmware updates are performed using ST's Teseo-Suite PC application (available at www.st.com), which connects via UART to upload new .bin files. The process requires no external debugger - only a USB-to-serial adapter and the module's UART-RX/TX lines. Runtime configuration changes can also be issued via NMEA commands without full firmware reload.
Is TESEO-LIV4F compliant with automotive AEC-Q200 or ISO/TS 16949 standards?
TESEO-LIV4F is CE/RED certified (2014/53/EU) and RoHS/WEEE compliant, with operating temperature qualified from -40 °C to +85 °C. While it meets functional requirements for automotive telematics, it is not formally AEC-Q200 stress-tested or ISO/TS 16949 production-certified - intended for industrial-grade automotive applications rather than safety-critical powertrain or ADAS domains.
TESEO-LIV4F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 18-SMD Module
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Frequency:
- -
- Sensitivity:
- -
- Data Rate (Max):
- -
- Modulation or Protocol:
- BeiDou, Galileo, GLONASS, GNSS, GPS
- Applications:
- GPS
- Current - Receiving:
- -
- Data Interface:
- GPIO, I2C, UART
- Memory Size:
- -
- Antenna Connector:
- Not Included
- Features:
- -
- Voltage - Supply:
- 3V ~ 3.63V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-LCC (9.7x10.1)
TESEO-LIV4F FAQ
1.How can I place an order for TESEO-LIV4F through Aetrix?
Please submit a Request for Quotation (RFQ) for TESEO-LIV4F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TESEO-LIV4F reliable?
The price and inventory of TESEO-LIV4F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TESEO-LIV4F is usually 5 days.
3.What payment methods are accepted for TESEO-LIV4F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TESEO-LIV4F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TESEO-LIV4F?
TESEO-LIV4F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TESEO-LIV4F order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TESEO-LIV4F?
For technical support, including TESEO-LIV4F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TESEO-LIV4F requirements.
6.How does Aetrix verify that TESEO-LIV4F is sourced from the original manufacturer or authorized distributors?
All TESEO-LIV4F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TESEO-LIV4F meets industry standards.
7.What is the process for return or replacement of TESEO-LIV4F?
All TESEO-LIV4F units undergo pre-shipment inspection (PSI). If there is an issue with TESEO-LIV4F, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TESEO-LIV4F part is unused and in its original packaging.
Return procedure for TESEO-LIV4F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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