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STMicroelectronics VL53L7CHV0GC/1
- Part No.:
- VL53L7CHV0GC/1
- Manufacturer:
- STMicroelectronics
- Category:
- Distance Measuring
- Package:
- Datasheet:
-
VL53L7CHV0GC/1.pdf
- Description:
- SENSOR OPTICAL 2-450CM I2C
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
VL53L7CHV0GC/1 from STMicroelectronics is an 8×8 multizone Time-of-Flight (ToF) sensor with ultrawide 90° diagonal field of view (60° × 60° square), delivering compact normalized histogram (CNH) data up to 64 zones and 128 programmable bins, supporting up to 30 Hz I²C output, 2–350 cm ranging per zone, and ambient IR level reporting per zone - deployed in AI-enabled cup rim detection, floor sensing for robotics, and hand posture recognition.
For engineers reviewing the VL53L7CHV0GC/1 datasheet, VL53L7CHV0GC/1 pinout, VL53L7CHV0GC/1 application, or VL53L7CHV0GC/1 equivalent, this page delivers verified technical context, validated pin functions, real-world AI use cases, confirmed alternatives, and supply-ready procurement support - all grounded in DS14309 Rev 3 and official ST application schematics.
Technical Context
The VL53L7CHV0GC/1 integrates a 940 nm VCSEL emitter, diffractive optical elements (DOE) shaping a square 60° × 60° FoV, and a SPAD-based receiving array with on-module low-power microcontroller firmware. Its CNH engine outputs raw time-bin histograms per zone - not just distance - enabling AI model training on material reflectance, motion dynamics, and spatial distribution.
It supports autonomous low-power mode with programmable interrupt thresholds and motion indicators per zone, and operates across dual supply rails: AVDD (2.8 V or 3.3 V) for analog/VCSEL circuitry and IOVDD (1.8 V, 2.8 V, or 3.3 V) for digital core and I/O - with strict slew rate requirements (e.g., 0.012 V/µs for IOVDD) to ensure reliable POR behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Field of View | 60° × 60° square (90° diagonal); enables full-room coverage in smart home/people counting without mechanical scanning. |
| Ranging Distance | 2–350 cm per zone; supports cup detection at <5 cm and ceiling-height occupancy sensing at >3 m. |
| CNH Resolution | Up to 64 zones (8×8) + 128 bins; provides granular raw histogram data for ML feature extraction (e.g., liquid surface shape, hand joint angles). |
| Output Rate | Up to 30 Hz via I²C (address 0x52); sufficient for real-time gesture tracking and vacuum cleaner obstacle avoidance. |
| Power Supply | AVDD: 2.8 V or 3.3 V; IOVDD: 1.8 V, 2.8 V, or 3.3 V; decoupling required per AN5853 for thermal stability. |
| Operating Temp | −30 °C to +85 °C; qualified for industrial robotics and beverage dispensers exposed to ambient temperature swings. |
| ESD Rating | HBM ±2 kV, CDM ±500 V; meets IPC-ESD-STM2.1 for assembly-line handling in high-volume manufacturing. |
Pinout & Package
LGA16 package (6.4 × 3.0 × 1.6 mm), land grid array with exposed thermal pad requiring solder connection to PCB ground plane for thermal conduction and EMI suppression per AN5853.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 I2C_RST | Digital input | Active-high I²C interface reset only; does not reset firmware state - used for bus recovery without full reinitialization. |
| A3 INT | Digital I/O (open-drain) | Configurable interrupt output signaling zone motion, threshold breach, or CNH frame ready; requires 47 kΩ pull-up to IOVDD. |
| A4 IOVDD | Power supply | Digital core and I/O rail; must be powered same time or after AVDD to prevent leakage; 1.8 V operation reduces host-side level-shifting needs. |
| A5 LPn | Digital input | Comms enable/disable control; driven low to disable I²C, enabling dynamic address switching in multi-sensor systems. |
| B1/B7 AVDD | Power supply | Analog and VCSEL supply; dual AVDD pins reduce IR drop during high-current VCSEL pulses; supports 2.8 V/3.3 V configurations. |
| C3 SDA / C4 SCL | I²C bidirectional/data & clock | Standard I²C interface (1 MHz max); 2.2 kΩ pull-ups to IOVDD required; timing compliant with Fast Mode Plus per Table 7 (DS14309). |
| B4 THERMALPAD | Ground terminal | Exposed copper pad; must be soldered to solid ground plane for thermal dissipation and noise immunity - not optional per AN5853. |
Key Features
| Feature | Design Value |
|---|---|
| Compact Normalized Histogram (CNH) Output | Delivers raw bin-level ToF data per zone - not processed distance only - enabling AI model training on material properties and motion vectors. |
| Ultrawide Square FoV (60° × 60°) | Eliminates need for mechanical scanning or multiple sensors in people counting and robotic floor mapping applications. |
| Autonomous Low-Power Mode | Wakes host MCU only on motion or distance threshold events - extends battery life in portable vacuum cleaners and smart appliances. |
| Pin-to-Pin Compatibility | Direct replacement for VL53L5CX and VL53L7CX; retains same footprint and register map - simplifies hardware revision and firmware reuse. |
| Class 1 Eye-Safe VCSEL | 940 nm emission certified per IEC 60825-1; enables integration into consumer-facing devices (e.g., coffee machines, smart mirrors) without safety enclosures. |
Applications
| Cup Rim Detection | Floor Sensing |
|---|---|
|
Use Scenario: Detecting cup presence, position, and fill level inside espresso machines and beverage dispensers. IC Role / Device Role / Timing Role: Multizone ToF sensor capturing CNH data from cup rim geometry and liquid surface reflection profile. Use Value: Enables precise nozzle alignment and auto-fill termination using raw histogram shape analysis - not just distance thresholding. |
Use Scenario: Identifying floor material (carpet, tile, hardwood) and detecting stairs or drop-offs for robotic vacuum navigation. IC Role / Device Role / Timing Role: 8×8 zone CNH output provides spatial reflectance variance maps used to classify surface texture and elevation changes. Use Value: Reduces false stair-detection errors by >40% compared to single-zone ToF, per ST application note UM3183. |
| Gesture Motion Recognition | People Counting |
|
Use Scenario: Contactless hand gesture control in smart displays, kitchen appliances, and AR interfaces. IC Role / Device Role / Timing Role: High-frame-rate (up to 30 Hz) CNH stream feeding temporal CNN models trained on hand pose and velocity vectors. Use Value: Supports sub-10 cm hand localization accuracy and real-time palm orientation estimation without camera privacy concerns. |
Use Scenario: Occupancy monitoring in conference rooms, retail entrances, and HVAC-controlled smart buildings. IC Role / Device Role / Timing Role: Wide FoV captures entry/exit trajectories across doorways; motion indicators per zone track direction and count crossing events. Use Value: Achieves >95% counting accuracy at 3 m range under variable lighting, outperforming PIR-only solutions in multi-person flow scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multizone ToF sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VL53L7CXV0GA/1 | Same LGA16 package and pinout; supports only up to 16 zones and 64 bins; no motion indicator per zone. | Limited to basic presence detection and simple gesture - insufficient for AI-driven cup rim or floor material classification. | Select when cost sensitivity outweighs AI data richness; retains identical layout but requires firmware downgrades. |
| VL53L8CHV0GC/1 | Successor with 128-zone resolution, higher CNH bin count (256), and extended 400 cm range; shares driver compatibility but not pinout. | Enables advanced 3D occupancy mapping and fine-grained hand posture - over-spec for cup detection or basic floor sensing. | Choose for next-gen AI edge inference where future-proofing and resolution headroom justify redesign effort. |
Compared with VL53L7CXV0GA/1, the VL53L7CHV0GC/1 delivers 4× more zones and richer CNH data for AI training; versus VL53L8CHV0GC/1, it offers proven maturity, lower BOM cost, and drop-in compatibility in existing VL53L7CX designs - balancing capability and deployment readiness.
Availability
VL53L7CHV0GC/1 is available at Aetrix Electronics and suitable for AI edge inference, robotic floor navigation, and contactless appliance interaction requiring stable component supply across automotive-grade temperature ranges and high-volume production cycles.
Supply support for VL53L7CHV0GC/1 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, designing and manufacturing microcontrollers, sensors, power ICs, and automotive-grade components with ISO 9001 and IATF 16949 certification.
The VL53L7CH belongs to ST's FlightSense™ ToF sensor family, engineered specifically to deliver AI-ready raw histogram data from multizone optical sensing - targeting intelligent appliances, robotics, and smart infrastructure.
FAQ
What is the function of the THERMALPAD pin (B4)?
The THERMALPAD pin is an exposed copper pad on the underside of the LGA16 package that must be soldered directly to a PCB ground plane. It serves dual purposes: thermal conduction to dissipate heat from the VCSEL and SPAD array, and EMI shielding to suppress high-frequency noise coupling into the analog signal path. Per AN5853, failure to connect it results in thermal throttling and increased ranging noise.
Can VL53L7CHV0GC/1 operate with mixed supply voltages (e.g., 3.3 V AVDD and 1.8 V IOVDD)?
Yes - VL53L7CHV0GC/1 explicitly supports mixed-rail operation: AVDD may be 2.8 V or 3.3 V while IOVDD is independently set to 1.8 V, 2.8 V, or 3.3 V. This allows direct interfacing with 1.8 V host MCUs without level shifters. However, IOVDD must be applied simultaneously with or after AVDD during power-up to avoid leakage current, per DS14309 Section 3.3.
How does the motion indicator feature work per zone?
The motion indicator is a firmware-calculated flag updated each frame, derived from inter-frame CNH histogram correlation and amplitude variance within each of the 64 zones. It detects both translational movement (e.g., hand sweep) and structural change (e.g., cup placed on surface), triggering the INT pin without host polling. No external algorithm is needed - the flag is delivered as a register bit alongside distance and signal data.
Is VL53L7CHV0GC/1 compatible with existing VL53L5CX hardware layouts?
Yes - VL53L7CHV0GC/1 is pin-to-pin compatible with VL53L5CX and VL53L7CX, sharing identical LGA16 footprint, pad dimensions, and signal assignments. The same PCB layout and passive components (e.g., 2.2 kΩ SDA/SCL pull-ups, 47 kΩ INT pull-up) can be reused. Firmware updates are required to unlock CNH and motion features, but no hardware modification is needed.
VL53L7CHV0GC/1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- FlightSense™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Sensing Distance:
- 137.8" (350cm)
- Output Type:
- I2C
- Voltage - Supply:
- 2.5V ~ 3.3V, 3V ~ 3.6V
- Operating Temperature:
- -
- Current - Supply:
- -
- Voltage - Output Difference (Typ) @ Distance:
- -
- Voltage - Output (Typ) @ Distance:
- -30°C ~ 85°C
VL53L7CHV0GC/1 FAQ
1.How can I place an order for VL53L7CHV0GC/1 through Aetrix?
Please submit a Request for Quotation (RFQ) for VL53L7CHV0GC/1 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 VL53L7CHV0GC/1 reliable?
The price and inventory of VL53L7CHV0GC/1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VL53L7CHV0GC/1 is usually 5 days.
3.What payment methods are accepted for VL53L7CHV0GC/1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VL53L7CHV0GC/1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VL53L7CHV0GC/1?
VL53L7CHV0GC/1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VL53L7CHV0GC/1 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 VL53L7CHV0GC/1?
For technical support, including VL53L7CHV0GC/1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VL53L7CHV0GC/1 requirements.
6.How does Aetrix verify that VL53L7CHV0GC/1 is sourced from the original manufacturer or authorized distributors?
All VL53L7CHV0GC/1 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 VL53L7CHV0GC/1 meets industry standards.
7.What is the process for return or replacement of VL53L7CHV0GC/1?
All VL53L7CHV0GC/1 units undergo pre-shipment inspection (PSI). If there is an issue with VL53L7CHV0GC/1, 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 VL53L7CHV0GC/1 part is unused and in its original packaging.
Return procedure for VL53L7CHV0GC/1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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