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STMicroelectronics STEVAL-IFR003V1

Name: STEVAL-IFR003V1
Brand: STMicroelectronics
SKU: STEVAL-IFR003V1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STEVAL-IFR003V1

Manufacturer:: STMicroelectronics

Category:: Sensor Evaluation Boards

Package:

Datasheet:: STEVAL-IFR003V1.pdf

Description:: DAUGHTER-CARD M41T83SMY6E SOX18

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,531

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Product details

Overview

STEVAL-IFR003V1 from STMicroelectronics is an RTC calibration daughterboard featuring the M41T83SMY6E real-time clock in SOX18 package, designed for precise timekeeping evaluation and temperature-compensated RTC calibration when connected to the STEVAL-IFS012V1 motherboard. It supports GUI-based RTC selection and integrates battery backup, I²C interface, and crystal load capacitance tuning.

For engineers reviewing the STEVAL-IFR003V1 datasheet, STEVAL-IFR003V1 pinout, STEVAL-IFR003V1 application, or STEVAL-IFR003V1 equivalent, this board enables comparative RTC accuracy testing across four supported devices-including M41T81S (on motherboard), M41T82 (SO-8), M41T83 (QFN), and M41T83 (SOX18)-within a unified thermal environment.

Technical Context

The STEVAL-IFR003V1 implements a dedicated hardware interface between the M41T83SMY6E RTC and the STEVAL-IFS012V1 motherboard via standardized interconnects, enabling synchronized temperature sensing and RTC register read/write operations through the host GUI. It provides crystal load capacitance adjustment (12.5 pF nominal) and V_BAT backup path with diode isolation.

Its circuitry includes passive termination for I²C lines (4.7 kΩ pull-ups), dedicated ground planes for RTC signal integrity, and JTAG-accessible test points for firmware-level interaction with the host motherboard's microcontroller. No onboard voltage regulation or level-shifting is present-operation relies entirely on the 3.3 V supply from STEVAL-IFS012V1.

Key Specifications

Parameter	Value and Actual Design Meaning
M41T83 variant	M41T83SMY6E - industrial-grade RTC with integrated oscillator, calendar, alarm, and century bit support
Package	SOX18 - 18-pin small-outline ceramic package with extended temperature range (−40°C to +85°C)
Interface	I²C-compatible serial interface (up to 400 kHz) with open-drain SDA/SCL pins routed to motherboard connector
Crystal load	12.5 pF nominal tuning capacitor network for 32.768 kHz crystal stability under thermal variation
Backup power	Dedicated V_BAT input with Schottky diode isolation; supports coin-cell or supercapacitor backup
Mounting	Daughterboard form factor (40 mm × 25 mm) with 0.1″ pitch header for plug-in connection to STEVAL-IFS012V1

Availability

STEVAL-IFR003V1 is available at Aetrix Electronics and suitable for RTC accuracy benchmarking, multi-sensor thermal calibration systems, and embedded timekeeping validation requiring stable component supply and documented legacy reference design compatibility.

Supply support for STEVAL-IFR003V1 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, analog ICs, MEMS, power management, and timing solutions for industrial, automotive, and consumer applications.

The STEVAL evaluation board series targets rapid prototyping and functional validation of ST's timing, sensing, and interface products-specifically engineered to demonstrate device interoperability, thermal correlation, and GUI-driven configuration in multi-component sensor systems.

FAQ

Is STEVAL-IFR003V1 compatible with other ST evaluation motherboards besides STEVAL-IFS012V1?

No. STEVAL-IFR003V1 is mechanically and electrically designed exclusively for use with STEVAL-IFS012V1, which provides the required 3.3 V supply, I²C bus routing, JTAG access, and GUI-controlled RTC selection logic. Pinout and footprint are not standardized across other ST motherboards.

Does STEVAL-IFR003V1 include firmware or require programming before use?

No firmware is preloaded on STEVAL-IFR003V1-it contains only passive components and the M41T83SMY6E RTC IC. Operation depends entirely on the host STEVAL-IFS012V1 motherboard's firmware and PC-based GUI, which handles all register initialization, time setting, and calibration data logging.

What is the role of the 12.5 pF capacitor network on this daughterboard?

The 12.5 pF capacitor network fine-tunes the load capacitance seen by the 32.768 kHz crystal connected to the M41T83SMY6E, directly affecting frequency accuracy and temperature drift performance. This allows engineers to validate crystal matching and optimize long-term RTC stability under varying thermal conditions.

Can STEVAL-IFR003V1 be used standalone without STEVAL-IFS012V1?

No. The board lacks power regulation, microcontroller, USB interface, or display. It has no independent functionality-it serves solely as a calibrated RTC node within the STEVAL-IFS012V1 system architecture, relying on that motherboard for power, communication, and user interface.

STEVAL-IFR003V1 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Sensor Type:: Temperature

Sensing Range:: -

Interface:: -

Sensitivity:: -

Voltage - Supply:: -

Embedded:: No

Contents:: Board(s)

Utilized IC / Part:: M41T83

STEVAL-IFR003V1 FAQ

1.How can I place an order for STEVAL-IFR003V1 through Aetrix?

Please submit a Request for Quotation (RFQ) for STEVAL-IFR003V1 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 STEVAL-IFR003V1 reliable?

The price and inventory of STEVAL-IFR003V1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-IFR003V1 is usually 5 days.

3.What payment methods are accepted for STEVAL-IFR003V1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-IFR003V1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STEVAL-IFR003V1?

STEVAL-IFR003V1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STEVAL-IFR003V1 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 STEVAL-IFR003V1?

For technical support, including STEVAL-IFR003V1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-IFR003V1 requirements.

6.How does Aetrix verify that STEVAL-IFR003V1 is sourced from the original manufacturer or authorized distributors?

All STEVAL-IFR003V1 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 STEVAL-IFR003V1 meets industry standards.

7.What is the process for return or replacement of STEVAL-IFR003V1?

All STEVAL-IFR003V1 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-IFR003V1, 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 STEVAL-IFR003V1 part is unused and in its original packaging.

Return procedure for STEVAL-IFR003V1:

1.Submit a request within 90 days.

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

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