BP3580 WiFi Transceiver Module Equivalent & Substitute Parts

Part Overview

The BP3580 is a WiFi 802.11b/g/n transceiver module manufactured by Rohm Semiconductor, designed for 2.4GHz surface mount applications. This module integrates RF transmission and reception capabilities with support for SDIO, SPI, and UART serial interfaces. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and inventory management.

Substiute Parts

BP3580

Rohm SemiconductorIn Stock: 2779BP3580 Datasheet

Current PartRFQ

WYSBHVGXG

Kaga FEI America, Inc.In Stock: 1068WYSBHVGXG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BP3580 is determined by the following critical parameters:

RF Capability Match: The substitute must support WiFi operation at 2.4GHz minimum. The WYSBHVGXG extends this with dual-band 5GHz capability and Bluetooth v4.2 support, providing backward compatibility with 802.11b/g/n protocols while offering enhanced functionality.

Interface Compatibility: The BP3580 requires SDIO, SPI, and UART support. The WYSBHVGXG provides SPI interface, which is the primary control interface for most WiFi module implementations. Design integration must verify that the reduction from three serial interfaces to SPI does not conflict with existing firmware or hardware architecture.

Mounting and Package: Both parts are surface mount modules, ensuring mechanical compatibility with existing PCB layouts.

Environmental and Compliance: Both parts meet ROHS3 compliance and operate within overlapping temperature ranges (-30°C to 85°C for WYSBHVGXG vs. -40°C to 85°C for BP3580), with acceptable MSL ratings for standard manufacturing processes.

Parameter Comparison

Engineering Selection Recommendations

The WYSBHVGXG is the identified equivalent substitute for the obsolete BP3580. Selection is justified on the following engineering criteria:

Product Status: The WYSBHVGXG maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete BP3580.

Regulatory Compliance: Both parts achieve ROHS3 compliance and meet international trade requirements (HTSUS 8517.62.0090 classification), supporting equivalent regulatory standing for end-use applications.

Functional Scope: The WYSBHVGXG provides superset functionality, supporting all 802.11b/g/n protocols required by the BP3580 while adding 802.11a/ac and Bluetooth v4.2 capabilities. This expansion does not compromise backward compatibility with existing 2.4GHz WiFi implementations.

Interface Consideration: The transition from triple-interface support (SDIO, SPI, UART) to SPI-only operation requires firmware and hardware validation. SPI is the dominant control interface for modern WiFi modules and is typically the primary interface in legacy designs; however, applications dependent on SDIO or UART must be re-evaluated.

Environmental Performance: The WYSBHVGXG operates across -30°C to 85°C, which covers the majority of the BP3580 range (-40°C to 85°C). Applications requiring operation below -30°C require alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the WYSBHVGXG directly replace the BP3580 without design changes?

A: Direct mechanical replacement is possible due to identical surface mount module packaging. However, firmware and hardware integration must be validated, particularly regarding serial interface requirements. If the original design relies on SDIO or UART as primary control interfaces, software adaptation is necessary.

Q: What are the key differences in RF performance between these modules?

A: The WYSBHVGXG provides specified performance metrics (433.3Mbps data rate, 14dBm output power, -87dBm sensitivity) that were not documented for the BP3580. The WYSBHVGXG supports extended frequency bands (5GHz in addition to 2.4GHz) and Bluetooth v4.2, offering enhanced capability for dual-protocol applications.

Q: Are there supply chain advantages to using the WYSBHVGXG?

A: Yes. The WYSBHVGXG is in active production with 1026 units currently in stock, compared to the BP3580's obsolete status. This ensures availability for new production runs and ongoing support.

Q: What is the impact of the different MSL ratings?

A: The WYSBHVGXG has MSL 3 (168 hours) versus the BP3580's MSL 4 (72 hours). MSL 3 indicates lower moisture sensitivity and provides a longer shelf life window before reflow soldering, reducing risk of moisture-induced defects during manufacturing.

Q: Does the WYSBHVGXG support the same operating temperature range?

A: The WYSBHVGXG operates from -30°C to 85°C, which covers most of the BP3580 range (-40°C to 85°C). Applications requiring operation below -30°C must use alternative components.

Q: What packaging format differences exist?

A: The BP3580 is supplied in Cut Tape (CT) format, while the WYSBHVGXG uses Tape & Reel (TR) format. TR packaging is standard for high-volume manufacturing and offers cost advantages; CT format is typically used for lower-volume or manual assembly scenarios.