EM355-RTR Equivalent & Substitute Parts Reference

Part Overview

The EM355-RTR is an RF integrated circuit manufactured by Silicon Labs, classified as an IC RF component. This part is currently in Obsolete product status, indicating it is no longer in active production or supported by the manufacturer. Due to its obsolescence, sourcing replacement units becomes increasingly difficult, making identification of functionally equivalent substitute parts essential for ongoing system maintenance, redesign efforts, and new production requirements.

The EM355-RTR serves as an RF transceiver component within embedded wireless applications. Obsolescence necessitates evaluation of active alternative products that maintain functional compatibility with existing designs or provide enhanced capabilities for system upgrades.

Substiute Parts

EM355-RTR

Silicon LabsIn Stock: 821EM355-RTR Datasheet

Current PartRFQ

EFR32MG24A010F1024IM48-BR

Silicon LabsIn Stock: 929EFR32MG24A010F1024IM48-BR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete EM355-RTR is determined by the following criteria derived from the provided parameters:

Primary Substitution Basis:

• Manufacturer alignment: Silicon Labs (maintained across substitute selection)
• Component category: RF integrated circuit with transceiver functionality
• Product status: Active production status required for long-term availability
• Functional classification: RF TxRx + MCU integration

Substitute Selection Logic:

The EFR32MG24A010F1024IM48-BR is identified as the manufacturer-recommended substitute. This selection is based on:

1. Manufacturer Continuity: Both parts are Silicon Labs products, ensuring design philosophy and support ecosystem alignment
2. Active Product Status: The substitute is in Active production status, contrasting with the Obsolete status of the EM355-RTR
3. RF Transceiver Classification: Both components function as RF transceiver integrated circuits
4. Series Progression: The substitute belongs to the Mighty Gecko series, representing the current generation of Silicon Labs RF solutions
5. Compliance Status: The substitute maintains RoHS3 compliance, meeting current regulatory requirements

Parameter Comparison

Engineering Selection Recommendations

For Obsolescence Mitigation:

The EFR32MG24A010F1024IM48-BR is the manufacturer-recommended substitute for the obsolete EM355-RTR. Selection of this substitute is justified on the following engineering grounds:

1. Product Status Alignment: The substitute maintains Active production status, ensuring continued availability, manufacturer support, and access to updated documentation and firmware updates.

2. Regulatory Compliance: The EFR32MG24A010F1024IM48-BR carries RoHS3 compliance certification, meeting current environmental and regulatory requirements for component procurement and system deployment.

3. Manufacturer Support Continuity: As a Silicon Labs product within the current Mighty Gecko series, the substitute benefits from active manufacturer support, technical documentation, and development tool availability.

4. Inventory Availability: Current inventory of 882 units provides immediate procurement capability for production requirements.

Design Integration Considerations:

Substitution requires evaluation of the specific application context. The provided parameter sets for the EM355-RTR are limited; therefore, detailed compatibility assessment must reference the complete technical datasheets for both components to confirm functional equivalence within the target application.

Frequently Asked Questions (FAQ)

Q: Why is the EM355-RTR being discontinued?

A: The EM355-RTR has reached Obsolete product status, indicating Silicon Labs has concluded active production and support. This is typical for RF components as technology advances and newer architectures provide enhanced performance and integration.

Q: What is the primary difference between the EM355-RTR and the EFR32MG24A010F1024IM48-BR?

A: The EFR32MG24A010F1024IM48-BR is a current-generation Mighty Gecko series RF transceiver with integrated MCU, Bluetooth v5.3 protocol support, and 2.4GHz frequency operation. The EM355-RTR parameter specifications are not fully detailed in the reference data; therefore, direct functional comparison requires complete datasheet review.

Q: Are there package compatibility considerations?

A: The EFR32MG24A010F1024IM48-BR uses a 48-VFQFN Exposed Pad surface mount package. PCB layout and footprint design must accommodate this package specification. The EM355-RTR package type is not specified in the provided data.

Q: What certifications does the substitute part carry?

A: The EFR32MG24A010F1024IM48-BR carries RoHS3 compliance certification and has a Moisture Sensitivity Level (MSL) rating of 2 (1 Year), indicating standard handling and storage requirements for surface mount components.

Q: Is the substitute part immediately available?

A: Yes. Current inventory status shows 882 units of the EFR32MG24A010F1024IM48-BR in stock as new original components.

Q: What is the voltage supply requirement for the substitute?

A: The EFR32MG24A010F1024IM48-BR operates within a supply voltage range of 1.71V to 3.8V, accommodating both 3.3V and lower voltage system designs.

Q: What serial interfaces are supported by the substitute?

A: The EFR32MG24A010F1024IM48-BR supports ADC, GPIO, I2C, I2S, SPI, IrDA, and UART serial interfaces, with 32 GPIO pins available for application-specific configuration.