Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Development Boards, Kits, Programmers > Evaluation Boards > RF, RFID, Wireless Evaluation Boards

STMicroelectronics ST25RU3993-EVAL

Name: ST25RU3993-EVAL
Brand: STMicroelectronics
SKU: ST25RU3993-EVAL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ST25RU3993-EVAL

Manufacturer:: STMicroelectronics

Category:: RF, RFID, Wireless Evaluation Boards

Package:

Datasheet:: ST25RU3993-EVAL.pdf

Description:: ST25RU3993 READER IC EVALUATION

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,702

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

ST25RU3993-EVAL from STMicroelectronics is an evaluation board for the ST25RU3993 RAIN® UHF RFID reader IC, supporting ISO/IEC 18000-63:2015 (Gen2V2) and 18000-62:2012 protocols. It integrates dual PA options (internal: 18 dBm; external: 29 dBm), differential RX with -80 dBm sensitivity, 700 tags/s read rate (16-bit EPC), and dual SMB antenna ports with automatic switching - enabling long-range and short-range UHF RFID system validation in industrial asset tracking and logistics gate applications.

For engineers reviewing the ST25RU3993-EVAL datasheet, ST25RU3993-EVAL pinout, ST25RU3993-EVAL application, or ST25RU3993-EVAL equivalent, this board delivers hands-on verification of Gen2V2 anti-collision, carrier cancellation tuning, reflected power measurement, continuous wave/continuous modulated RF modes, and USB-hosted GUI control via STM32L476RG MCU with SWD debug and SPI firmware update capability.

Technical Context

The ST25RU3993-EVAL implements a complete RAIN RFID reader system architecture centered on the ST25RU3993 IC, featuring two independent RF paths with selectable internal/external power amplifiers, carrier cancellation circuitry for pre- and re-tuning, and differential RX input optimized for high-sensitivity tag detection across 840–960 MHz.

Digital control is handled by an STM32L476RGT6 Arm Cortex-M4 MCU (64 MHz, 128 KB RAM, 1 MB Flash), interfacing via USB/UART bridge (FT231XQ-R), SPI (Mode 1, 4 MHz), and SWD; it supports real-time transponder RSSI display, EPC read/write, direct command execution, and configuration store/recall through a PC-based GUI.

Key Specifications

Parameter	Value and Actual Design Meaning
RF Frequency Range	840–960 MHz - covers all regional UHF RFID bands including FCC, ETSI, and ARIB allocations.
Max TX Power	29 dBm (external PA) / 18 dBm (internal PA) - enables long-range (>10 m) and compact short-range deployments.
RX Sensitivity	-80 dBm - ensures reliable detection of low-power or distant passive UHF tags under noisy RF conditions.
Tag Read Rate	700 tags/s (16-bit EPC) - supports high-throughput inventory scanning in warehouse and retail checkout systems.
Host Interface	USB Micro-B (3.0) + UART bridge - provides plug-and-play GUI connectivity without external power adapters in full-feature mode.
Reference Clock	20 MHz TCXO (clipped sine) or crystal - ensures stable frequency synthesis and low phase noise for compliant Gen2V2 operation.
Antenna Ports	Two SMB (F) connectors with software-controlled switching - allows A/B antenna testing and spatial diversity without hardware rework.

Availability

ST25RU3993-EVAL is available at Aetrix Electronics and suitable for UHF RFID system validation, Gen2V2 protocol compliance testing, and embedded reader design prototyping requiring stable component supply and full-feature evaluation capability.

Supply support for ST25RU3993-EVAL 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, analog ICs, power management, sensors, and RF solutions for industrial, automotive, and IoT applications.

The ST25RU3993-EVAL belongs to ST's ST25 RFID evaluation platform family, engineered to accelerate development of certified, high-performance UHF RFID readers compliant with RAIN Alliance specifications and regional regulatory requirements.

FAQ

What power supply is required to operate the ST25RU3993-EVAL at full 29 dBm output?

The board requires a USB 3.0 port capable of delivering ≥900 mA to power both the STM32L476RG MCU and the external power amplifier. If only USB 2.0 is available, a Y-cable (dual USB-A) or external 5 V/2 A supply must be used to sustain full TX power - otherwise, operation defaults to the lower 18 dBm internal PA mode.

Does the ST25RU3993-EVAL support regulatory testing for FCC Part 15 or ETSI EN 302 208?

Yes - the board implements calibrated RF front-end components (TQP9107 PA, SKY13431-374LF switch, MAX4003EUA detector) and supports precise TX power leveling, carrier sense (LBT), and reflected power measurement, enabling pre-compliance verification per FCC Part 15.247 and ETSI EN 302 208 V3.1.1 test procedures.

Can the ST25RU3993-EVAL be used without the PC GUI?

Yes - the onboard STM32L476RG MCU supports standalone operation via UART command set (AT-style or binary protocol), allowing integration into embedded host systems. Firmware updates, register configuration, and tag interrogation can be performed directly over UART without GUI dependency.

Are the test points on the ST25RU3993-EVAL accessible for RF signal analysis?

Yes - dedicated RF test points include RF_IN/RF_OUT at the ST25RU3993 IC, PAOUT_P/PAOUT_N, LP_Filter_IN/OUT, and RF_Detector voltage output. These enable in-circuit measurement of TX power, RX signal integrity, carrier cancellation effectiveness, and VCO control voltage using standard 50 Ω RF probes and spectrum analyzers.

ST25RU3993-EVAL Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Type:: RFID Reader

Frequency:: 840MHz ~ 960MHz

Contents:: Board(s)

Utilized IC / Part:: ST25RU3993

ST25RU3993-EVAL FAQ

1.How can I place an order for ST25RU3993-EVAL through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25RU3993-EVAL 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 ST25RU3993-EVAL reliable?

The price and inventory of ST25RU3993-EVAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25RU3993-EVAL is usually 5 days.

3.What payment methods are accepted for ST25RU3993-EVAL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25RU3993-EVAL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25RU3993-EVAL?

ST25RU3993-EVAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25RU3993-EVAL 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 ST25RU3993-EVAL?

For technical support, including ST25RU3993-EVAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25RU3993-EVAL requirements.

6.How does Aetrix verify that ST25RU3993-EVAL is sourced from the original manufacturer or authorized distributors?

All ST25RU3993-EVAL 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 ST25RU3993-EVAL meets industry standards.

7.What is the process for return or replacement of ST25RU3993-EVAL?

All ST25RU3993-EVAL units undergo pre-shipment inspection (PSI). If there is an issue with ST25RU3993-EVAL, 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 ST25RU3993-EVAL part is unused and in its original packaging.

Return procedure for ST25RU3993-EVAL:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…