ISM43340-L77 Equivalent & Substitute Parts

Part Overview

The ISM43340-L77 is a Bluetooth and WiFi 802.11a/b/g/n dual-band transceiver module manufactured by Inventek Systems. This 44-SMD surface mount module integrates 2.4GHz and 5GHz RF capabilities with trace and U.FL antenna options, operating at 3.3V supply voltage. The module is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements.

Substiute Parts

ISM43340-L77

Inventek SystemsIn Stock: 666ISM43340-L77 Datasheet

Current PartRFQ

ISM43340-L77-TR

Inventek SystemsIn Stock: 1039ISM43340-L77-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISM43340-L77 is determined by the following critical parameters:

Core Compatibility Criteria:

• Manufacturer: Inventek Systems
• RF Family/Standard: Bluetooth, WiFi
• Protocol: 802.11a/b/g/n, Bluetooth v4.0
• Frequency Band: 2.4GHz, 5GHz
• Antenna Configuration: Integrated, Trace + U.FL
• Utilized IC: EFR32
• Package Type: 44-SMD Module
• Mounting Type: Surface Mount

The ISM43340-L77-TR qualifies as a direct substitute based on identical RF specifications, protocol support, frequency bands, antenna configuration, IC platform, and physical package format. Both parts share the same base product number (ISM43340) and maintain compatibility with the same serial interfaces and mechanical footprint requirements.

Parameter Comparison

Engineering Selection Recommendations

The ISM43340-L77-TR is the active equivalent for the obsolete ISM43340-L77. Selection of the ISM43340-L77-TR is based on the following engineering factors:

Product Status: The ISM43340-L77-TR maintains active product status with current manufacturing support, whereas the ISM43340-L77 is classified as obsolete. For new designs and production continuity, the ISM43340-L77-TR is the appropriate selection.

Compliance and Certifications: The ISM43340-L77-TR is RoHS Compliant and REACH Unaffected, meeting current regulatory requirements. The ISM43340-L77 compliance status is not specified.

Packaging Consideration: The ISM43340-L77-TR is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The ISM43340-L77 is supplied in bulk packaging.

Voltage Supply Range: The ISM43340-L77-TR operates across 1.1V to 3.6V, providing broader supply voltage compatibility compared to the fixed 3.3V specification of the ISM43340-L77.

Moisture Sensitivity: The ISM43340-L77-TR has MSL 3 (168 Hours), offering improved moisture tolerance compared to the ISM43340-L77 MSL 4 (72 Hours).

Frequently Asked Questions (FAQ)

Q: Can the ISM43340-L77-TR directly replace the ISM43340-L77 in existing designs?

A: Yes. Both parts share identical RF specifications, protocol support (802.11a/b/g/n, Bluetooth v4.0), frequency bands (2.4GHz, 5GHz), antenna configuration (Integrated, Trace + U.FL), IC platform (EFR32), and 44-SMD package format. The primary differences are product status (active vs. obsolete), packaging format (Tape & Reel vs. bulk), and enhanced performance specifications in the ISM43340-L77-TR.

Q: What are the key differences between these two parts?

A: The ISM43340-L77-TR provides enhanced performance with 150Mbps data rate versus 72.2Mbps, specified output power of 12dBm, and sensitivity of -95.5dBm. The ISM43340-L77-TR also features a wider supply voltage range (1.1V to 3.6V), improved moisture sensitivity level (MSL 3 vs. MSL 4), and active product status with RoHS compliance.

Q: Are the serial interfaces compatible between these parts?

A: Both parts support SPI and UART interfaces. The ISM43340-L77 includes SDIO, while the ISM43340-L77-TR includes I2C. Design verification is required if SDIO-specific functionality is utilized in the original ISM43340-L77 implementation.

Q: What is the significance of the Tape & Reel packaging for the ISM43340-L77-TR?

A: Tape & Reel (TR) packaging is the standard format for automated surface mount assembly processes. This packaging format enables high-volume production efficiency and is the industry standard for active components. The ISM43340-L77 bulk packaging is typically associated with legacy or low-volume applications.

Q: Is the ISM43340-L77-TR suitable for new product designs?

A: Yes. The ISM43340-L77-TR is classified as active with current manufacturing support, RoHS compliance, and REACH compliance status. This part is appropriate for new designs requiring Bluetooth and WiFi 802.11a/b/g/n dual-band transceiver functionality in a 44-SMD surface mount module format.