1. Product Overview
The ST25RU3993-BQFT is a UHF RFID reader IC developed by STMicroelectronics, designed for high-integration, multi-protocol, and low-power applications in RFID systems. The device is compliant with EPCglobal Class 1 Gen 2 and ISO18000-6C, and backward-compatible with ISO18000-6B. It is ideally suited for use in industrial tracking, supply chain management, and automated identification systems.
2. Key Specifications
Specification | Description |
Operating Frequency | 840 MHz – 960 MHz (Regionally configurable) |
Supported Protocols | EPC C1G2 (ISO18000-6C), ISO18000-6B |
Receiver Sensitivity | Typ. –80 dBm |
Max Output Power | Up to +20 dBm (with external PA) |
Modulation | ASK, PR-ASK (FM0, Miller encoding supported) |
Interfaces | SPI, UART, I²C |
Processing Features | On-chip CRC, FIFO, anti-collision, decoding |
Supply Voltage | 2.7 V – 3.6 V |
Package | QFN48 (7 × 7 mm) |
Temp Range | –40°C to +85°C (Industrial Grade) |
3. Key Features
1) Multi-Protocol Support with Flexible Band Configuration
Supports EPC C1G2, ISO18000-6C, and ISO18000-6B protocols, making it globally deployable across various regional UHF bands.
2) Integrated RF and Baseband Architecture
Combines RF transceiver, baseband processing, demodulator, and channel controller in a single chip, significantly reducing external component count and BOM cost.
3) Versatile Interface Support
Supports SPI, UART, and I²C interfaces, enabling easy integration with various MCU or SoC platforms. Built-in FIFO and anti-collision algorithms ensure high tag-read throughput in dense environments.
4) Industrial-Grade Reliability & Low Power
Offers industrial temperature range (–40°C to +85°C), with standby and dynamic power management features suited for energy-sensitive embedded RFID platforms such as handheld readers and outdoor terminals.
4. Comparative Analysis of Related Devices
Feature | ST25RU3993-BQFT | ||
Protocol Support | EPC Gen2 v2.0 / ISO 18000-63 | EPC Gen2 v2.0 / ISO 18000-63 | EPC Gen2 v1.2.0 / ISO 18000-6C |
Max Output Power | +20 dBm (requires external power amplifier) | +20 dBm (requires external power amplifier) | +16 dBm (with integrated power amplifier) |
Interfaces | SPI / UART / I²C | SPI / UART / I²C | SPI only |
Tag Reading Capability | Parallel reading >200 tags per second | Multi-tag optimized | Optimized for single-tag reading |
Configurability | Highly programmable and adaptive | Simplified configuration options | Fixed-function, no configuration needed |
Package | QFN48 (7 × 7 mm) | QFN48 (7 × 7 mm) | QFN48 (7 × 7 mm) |
Temp Range | –40°C ~ +85°C | –40°C ~ +85°C | –40°C ~ +85°C |
Target Applications | Industrial automation / Logistics / Security systems | Retail / Warehousing systems | Mobile terminals / Embedded modules |
Note: Performance values are typical. Actual results depend on RF design, antenna matching, and system integration.
5. Application Scenarios
Use Case | Functional Role |
Logistics & Supply Chain | Full-cycle asset and shipment identification |
Smart Retail Security | Tag detection, self-checkout, anti-tampering |
Industrial Asset Management | Equipment lifecycle tracking and condition monitoring |
Intelligent Transport Systems | ETC, RFID access control, vehicle/personnel recognition |
Medical Inventory Management | High-value consumable tracking and secure reporting |
6. Packaging and Design Resources
The ST25RU3993-BQFT is available in a QFN48 (7 × 7 mm) package with excellent electrical grounding and thermal management characteristics—ideal for compact RF reader designs. WIN SOURCE provides schematic symbols, footprint drawings, and 3D CAD models (via SnapMagic), as well as Ultra Librarian-compatible EDA libraries supporting tools like Altium, OrCAD, and KiCad for rapid design integration.
The ST25RU3993-BQFT combines multi-standard compatibility, high integration of RF/baseband components, versatile host interfaces, and industrial-grade reliability, making it a powerful solution for UHF RFID applications that demand scalability, read density, and communication stability. It is well-suited for high-performance platforms such as automated warehouses, RFID terminals, and asset tracking systems.
To explore more component specifications, packaging models, and inventory availability, please visit the official WIN SOURCE website.
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