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STMicroelectronics TESEO-VIC3D

Name: TESEO-VIC3D
Brand: STMicroelectronics
SKU: TESEO-VIC3D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TESEO-VIC3D

Manufacturer:: STMicroelectronics

Category:: RF Receivers

Package:: 24-SMD Module

Datasheet:: TESEO-VIC3D.pdf

Description:: INDUSTRIAL GNSS DEAD RECKONING M

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TESEO-VIC3D from STMicroelectronics is an industrial-grade GNSS dead-reckoning module integrating a TeseoIII positioning IC, 6-axis inertial sensor, TCXO, RTC, and embedded Teseo-DRAW automotive firmware. It delivers 1.5 m CEP autonomous accuracy, -163 dBm tracking sensitivity, and 30 Hz dead-reckoning fix rate in a 24-pin LCC package (16.0 mm × 12.2 mm × 2.42 mm), operating from -40 °C to +85 °C for automotive navigation in tunnels and urban canyons.

For engineers reviewing the TESEO-VIC3D datasheet, TESEO-VIC3D pinout, TESEO-VIC3D application, or TESEO-VIC3D equivalent, key selection considerations include multiconstellation support (GPS/Galileo/GLONASS/BeiDou/QZSS), SBAS/RT-AGNSS assistance, I²C/UART interface flexibility, wheel tick and forward signal inputs for DRAW, and 17 μA standby current with RTC retention.

Technical Context

The TESEO-VIC3D implements a tightly coupled GNSS-inertial fusion architecture using Teseo-DRAW firmware, combining real-time GNSS measurements with 6-axis IMU data to sustain positioning during signal outages. Its dedicated RTC oscillator enables sub-2-second hot TTFF and supports periodic low-power wake-up modes.

It features dual power domains: main VCC (2.97–3.63 V) for GNSS/IMU processing and backup V_BAT (2.97–3.63 V) for RTC and SRAM retention. The embedded Flash allows field-upgradable firmware, including ST-AGNSS (5-day ephemeris prediction) and Real-Time AGNSS via NMEA command injection.

Key Specifications

Parameter	Value and Actual Design Meaning
GNSS Constellations	Simultaneous GPS L1C/A, Galileo E1, GLONASS L1OF, BeiDou B1I, QZSS L1C/A - enables robust multi-regional coverage and redundancy
Positioning Accuracy	1.5 m CEP (autonomous, static, roof antenna) - meets automotive dead-reckoning integrity requirements in GNSS-denied zones
Tracking Sensitivity	-163 dBm - sustains lock under weak-signal conditions (e.g., inside vehicles, dense urban areas)
Dead-Reckoning Fix Rate	Up to 30 Hz - supports high-dynamic vehicle motion modeling and smooth map-matching interpolation
Time to First Fix (Hot)	< 2 s (GPS+Galileo) - enabled by TCXO stability and RTC-assisted warm start
Supply Voltage	VCC = 2.97–3.63 V, V_BAT = 2.97–3.63 V - compatible with standard automotive 3.3 V rail and backup supercap/battery
Operating Temperature	-40 °C to +85 °C - qualified for under-hood and dashboard mounting in passenger and commercial vehicles

Pinout & Package

TESEO-VIC3D uses a 24-pin LCC (Leadless Chip Carrier) package measuring 16.0 mm × 12.2 mm × 2.42 mm, with exposed thermal pad on bottom side for enhanced heat dissipation in automotive environments.

Pin/Terminal	Circuit Role	Design Meaning
1 WakeUP	Input	External interrupt to exit standby mode - enables host-triggered wake-up without full power cycle
3 PPS	Output	Pulse-per-second timing reference - provides 1 Hz time pulse with ±19.6 ns accuracy for synchronization
4 WHEELTICK	Input	Digital odometer pulse input for DRAW - enables distance-based drift correction in tunnels or garages
6 IRQ	Output	Interrupt request signaling valid NMEA fix or event - reduces polling overhead on host microcontroller
8 nReset	Input	Active-low hardware reset - allows deterministic recovery without power cycling
9 VCC_RF	Output	3.3 V regulated supply for active GNSS antennas - eliminates need for external LDO in antenna path
11 RF_IN	Input	50 Ω single-ended GNSS RF input - accepts signals from ceramic patch or SAW-filtered antennas
14 Ant_OFF	Output	Antenna enable/disable control - permits dynamic antenna power gating to reduce system leakage
15 FWD	Input	Forward direction signal for DRAW - distinguishes vehicle motion direction to suppress reverse-drift errors
18 I2C_SDA	I/O	Open-drain bidirectional I²C data line - supports 100 kHz/400 kHz communication with host MCU or PMIC
19 I2C_SCL	I/O	Open-drain I²C clock line - synchronized with host clock; configurable slave address via firmware
20 UART-TX	Output	Asynchronous serial NMEA output - 64-byte TX FIFO enables burst transmission without host latency
21 UART-RX	Input	Asynchronous serial command input - accepts NMEA configuration, AGNSS injection, and DRAW control commands
22 V_BAT	Input	Backup supply for RTC and SRAM - maintains timekeeping and configuration during main power loss
23 VCC	Input	Main digital supply - powers GNSS baseband, IMU, Flash, and interface logic

Key Features

Feature	Design Value
Embedded Teseo-DRAW firmware	Automotive-grade dead-reckoning engine fusing GNSS, 6-axis IMU, wheel tick, and forward signals - sustains <2.5° heading error at 0.5 g lateral acceleration
ST-AGNSS & RT-AGNSS support	On-device 5-day ephemeris prediction + server-based real-time assistance - reduces cold TTFF from 32 s to <5 s in obstructed environments
TCXO + RTC co-design	Temperature-compensated crystal oscillator with always-on RTC domain - enables fast hot starts and precise 1 Hz PPS timing across -40 °C to +85 °C
Configurable NMEA over UART/I²C	Full NMEA 0183 v4.10 support on both interfaces - allows flexible host integration without protocol translation hardware
Industrial temperature qualification	Tested and guaranteed over -40 °C to +85 °C ambient - validated for automotive infotainment, telematics, and ADAS auxiliary positioning

Applications

Automotive Navigation Systems

Emergency Call (eCall) Telematics

Use Scenario: In-vehicle navigation unit operating in urban canyons and multi-level parking garages where GNSS signals are intermittent or blocked.

IC Role / Device Role / Timing Role: Primary positioning engine providing continuous location, velocity, and heading via GNSS-inertial fusion with wheel tick feedback.

Use Value: Maintains <30 m position accuracy for >90 s during tunnel passage using DRAW, enabling seamless route guidance without map snapping artifacts.

Use Scenario: EU-compliant eCall module that must transmit precise crash location within 100 ms of airbag deployment, even when vehicle is stationary or under canopy.

IC Role / Device Role / Timing Role: Certified GNSS source delivering UTC-synchronized position and timestamp via PPS and NMEA GGA/RMC messages.

Use Value: Achieves 1.4 m SBAS-enhanced horizontal accuracy and ±21.8 ns time pulse jitter - meets ETSI EN 303 413 V1.1.1 location reporting requirements.

Fleet Management Terminals

Commercial Vehicle ADAS Support

Use Scenario: Ruggedized fleet tracker mounted in delivery vans, logging position, speed, and ignition state across mixed rural/urban routes with frequent stop-start cycles.

IC Role / Device Role / Timing Role: Low-power positioning node using periodic standby (5 s–24 h intervals) and V_BAT-retained RTC to minimize battery drain.

Use Value: Draws only 17 μA in RTC-only standby while retaining time and last-known position - extends backup battery life to >12 months.

Use Scenario: Positioning subsystem for lane departure warning and blind spot detection systems requiring stable heading and lateral velocity estimation.

IC Role / Device Role / Timing Role: High-rate (30 Hz) dead-reckoning source feeding heading and angular rate to ADAS ECU via UART.

Use Value: Delivers 0.01° heading accuracy at 30 m/s linear motion - improves yaw-rate correlation for predictive steering intervention.

Equivalent & Alternatives

The following parts are listed as comparable options for similar GNSS dead-reckoning applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
u-blox ZED-F9R	9-axis IMU, supports dual-band L1/L2 GNSS, no integrated TCXO (requires external)	Higher accuracy (<0.5 m RTK) but larger footprint (16.0 mm × 12.2 mm × 2.55 mm) and higher power (65 mA active)	Preferred when centimeter-level accuracy and RTK capability are required; less suitable for cost-sensitive automotive modules with strict size constraints.
Texas Instruments CC2652RB	Bluetooth SoC with integrated GNSS assist (no standalone GNSS), no IMU, no DRAW firmware	Designed for BLE-connected asset trackers - lacks automotive dead-reckoning, RTC, or certified SBAS support	Only viable for low-cost, non-safety-critical consumer trackers where GNSS is secondary to wireless connectivity.

Compared with u-blox ZED-F9R and TI CC2652RB, TESEO-VIC3D uniquely integrates certified automotive DRAW firmware, TCXO+RTC co-design, and industrial temperature operation in a compact LCC package - making it optimal for cost-constrained, safety-aware automotive navigation where seamless GNSS/IMU fusion is mandatory.

Availability

TESEO-VIC3D is available at Aetrix Electronics and suitable for automotive navigation systems, emergency call (eCall) telematics units, fleet management terminals, and commercial vehicle ADAS support requiring stable component supply, industrial temperature operation, and certified GNSS dead-reckoning functionality.

Supply support for TESEO-VIC3D 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, specializing in automotive, industrial, and power management solutions with broad IP portfolios in analog, microcontrollers, and sensors.

TESEO-VIC3D belongs to ST's Teseo family of GNSS positioning modules, designed specifically for automotive dead-reckoning applications requiring high reliability, regulatory compliance (CE/RED), and seamless integration into infotainment and telematics platforms.

FAQ

Does TESEO-VIC3D support real-time assisted GNSS (RT-AGNSS) without external server infrastructure?

No. RT-AGNSS requires connection to an external assistance server to download real-time ephemeris data. TESEO-VIC3D provides the NMEA command interface and credential handling to inject this data, but the server infrastructure - including authentication keys and data delivery - must be provided by the customer or ST's authorized partner. ST does not operate a public RT-AGNSS service.

Can the 6-axis IMU data be accessed directly via I²C or UART, or is it only fused internally?

The IMU raw data (accelerometer and gyroscope) is not exposed externally. TESEO-VIC3D performs all sensor fusion internally within the Teseo-DRAW firmware. Only fused outputs - position, velocity, heading, and time - are available via NMEA messages on UART or I²C. No register-level IMU access is supported.

What is the maximum update rate for NMEA messages over UART, and how is buffer overflow handled?

NMEA output supports up to 10 Hz message rate (configurable). The UART TX path includes a 64-byte FIFO buffer. If the host fails to read data before overflow, new messages overwrite oldest entries - no hardware flow control is implemented. For reliable high-rate logging, host software must maintain read latency below 100 ms.

Is the VCC_RF pin capable of powering high-gain active GNSS antennas, and what is its current limit?

Yes, VCC_RF supplies regulated 3.3 V to active antennas. Its maximum continuous output current is 100 mA, sufficient for most ceramic patch antennas with integrated LNA. For antennas exceeding this limit, an external regulator must be used, and Ant_OFF (pin 14) should be disabled to prevent backfeed.

TESEO-VIC3D Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 24-SMD Module

Packaging:: Tray

Product Status:: Active

Frequency:: 1.561GHz, 1.575GHz

Sensitivity:: -163dBm

Data Rate (Max):: -

Modulation or Protocol:: BeiDou, Galileo, GLONASS, GNSS, GPS

Applications:: GPS

Current - Receiving:: -

Data Interface:: I2C, UART

Memory Size:: -

Antenna Connector:: Not Included

Features:: -

Voltage - Supply:: 2.97V ~ 3.63V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: -

TESEO-VIC3D FAQ

1.How can I place an order for TESEO-VIC3D through Aetrix?

Please submit a Request for Quotation (RFQ) for TESEO-VIC3D 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-VIC3D reliable?

The price and inventory of TESEO-VIC3D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TESEO-VIC3D is usually 5 days.

3.What payment methods are accepted for TESEO-VIC3D?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TESEO-VIC3D transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TESEO-VIC3D?

TESEO-VIC3D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TESEO-VIC3D 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-VIC3D?

For technical support, including TESEO-VIC3D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TESEO-VIC3D requirements.

6.How does Aetrix verify that TESEO-VIC3D is sourced from the original manufacturer or authorized distributors?

All TESEO-VIC3D 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-VIC3D meets industry standards.

7.What is the process for return or replacement of TESEO-VIC3D?

All TESEO-VIC3D units undergo pre-shipment inspection (PSI). If there is an issue with TESEO-VIC3D, 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-VIC3D part is unused and in its original packaging.

Return procedure for TESEO-VIC3D:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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