STMicroelectronics EMIF06-MSD01F2

Product Summary EMIF06-MSD01F2 from STMicroelectronics

As the use of mini and micro SD cards accelerates in compact mobile devices, the need for robust EMI filtering and ESD protection at the interface level becomes essential for product reliability and EMC compliance. The EMIF06-MSD01F2 from STMicroelectronics is a highly integrated RC (Pi) low-pass filter designed specifically for SD, miniSD, and microSD card interfaces in mobile phones and related communication systems. Based on advanced IPAD™ technology, the EMIF06-MSD01F2 bundles multi-line EMI suppression and high-level ESD protection into an ultra-compact, flip-chip package.

Key Functions and Performance Benefits of EMIF06-MSD01F2

The EMIF06-MSD01F2 provides a comprehensive set of interface protections and signal conditioning features:

Six-channel 2nd order low pass filtering (Pi configuration) with resistance of 40 Ω and total capacitance of 17 pF per line.

Robust ESD protection rated up to ±25 kV (IEC 61000-4-2), safeguarding sensitive card interfaces from electrostatic discharge events common in portable applications.

Integrated pull-up resistors on data and command lines, eliminating the need for additional board-level discrete components and ensuring bus integrity during card removal or when the card is in high-impedance mode.

Optimized for low power operation and minimal board area consumption, in line with the stringent demands of modern mobile device design.

Monolithic integration reduces parasitic elements, provides consistent performance, and simplifies BOM management.

Common Use Cases for EMIF06-MSD01F2

The EMIF06-MSD01F2 is ideally suited for SD memory card interfaces requiring high immunity to EMI and ESD transients. Key applications include:

Mobile phones: Secure digital card slots in handsets demand effective noise rejection and ESD robustness.

Tablets and portable media players: For reliable microSD or miniSD expansion slots.

Wireless communication systems and embedded platforms utilizing removable flash storage.

Any system where protecting high-speed SD card signals up to 50 MHz is vital for performance and signal integrity.

Design Guidelines and Deployment Advice for EMIF06-MSD01F2

For optimal integration of the EMIF06-MSD01F2 into SD card interfaces, several practical engineering aspects should be considered:

Placement: Situate the EMIF06-MSD01F2 as close as possible to the memory card connector to maximize noise and ESD attenuation before signals reach the system’s core circuitry.

The device’s integrated pull-up resistors (suggested range: 10 kΩ to 100 kΩ) conform with SD and microSD interface recommendations, further reducing discrete component count.

Smart pin-out and flip-chip (CSP) packaging facilitate straightforward PCB layout and routing.

Reference guidance from application notes—such as typical layout recommendations and T-Flash (microSD) connection diagrams—ensures adherence to best practices for signal integrity and protection.

Electrical Parameters and Environmental Ratings of EMIF06-MSD01F2

From a specification standpoint, the EMIF06-MSD01F2 offers:

Resistance: 40 Ω per line (typical)

Capacitance: 17 pF per line (total)

ESD Protection: ±25 kV (IEC 61000-4-2) air discharge, exceeding standard compliance thresholds.

Frequency Compatibility: Reliable operation up to 50 MHz clock frequencies, provided line capacitances remain below 20 pF.

Moisture Sensitivity: Rated MSL 1 (unlimited shelf life in typical ambient conditions)

Environmental Compliance: ROHS3 compliant; REACH unaffected; lead-free (ECOPACK® packaging options).

Packaging Details and PCB Layout Recommendations for EMIF06-MSD01F2

The EMIF06-MSD01F2 is supplied in a 16-bump flip-chip (WFBGA, FCBGA) package, maintaining an exceptionally low profile and minimal PCB real estate demands. Key considerations include:

Accurate footprint alignment as per the manufacturer’s datasheets and application notes to ensure soldering reliability.

ECOPACK®-rated for environmental compliance, with packaging and handling instructions aligned with JEDEC JESD97 guidelines.

PCB layout should minimize trace lengths between the device, connector, and protected circuitry to exploit the filter’s full benefit.

Regulatory Compliance and Supported Standards for EMIF06-MSD01F2

The EMIF06-MSD01F2 meets or exceeds several key industry standards demanded by modern consumer and communication electronics:

IEC 61000-4-2 level 4 for ESD immunity: up to 15 kV (air discharge) and 8 kV (contact discharge)

MIL STD 883G Method 3015-7 Class 3A for ESD robustness

Conformance with SD Card Specification Ver. 1.01, MicroSD Card Specification Ver. 1.0, and relevant physical layer specifications.

Alternative or Substitute Options for EMIF06-MSD01F2

While the EMIF06-MSD01F2 offers a balanced blend of filtration, ESD protection, and integration optimized for SD interfaces, engineers seeking alternatives may consider devices with similar channel counts, resistance/capacitance profiles, and ESD ratings from STMicroelectronics’ EMIF series or comparable EMI/ESD filter products from other established manufacturers. When substituting, it is critical to verify pin-out compatibility, equivalent filter characteristics, ESD test compliance, and package outline to prevent board redesign or performance degradation.

Conclusion

The EMIF06-MSD01F2 from STMicroelectronics exemplifies the state-of-the-art in compact, integrated EMI filtering and ESD protection for SD card interfaces in mobile and communication devices. Its comprehensive feature set—including robust ESD ratings, optimized filter characteristics, integrated pull-ups, and miniaturized package—addresses the pressing needs of modern designers striving for reliability, space-saving, and compliance in high-volume, portable applications. Careful consideration of its implementation and available alternatives can ensure robust, standards-compliant SD interface protection in any end product.