ATWINC1500A-MU-T Equivalent & Substitute Parts

Part Overview

The ATWINC1500A-MU-T is a WiFi RF transceiver with integrated microcontroller manufactured by Microchip Technology. This IC combines RF TxRx and MCU functionality for 802.11b/g/n 2.4GHz wireless connectivity in a 40-VFQFN exposed pad surface mount package. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

ATWINC1500A-MU-T

Microchip TechnologyIn Stock: 2009ATWINC1500A-MU-T Datasheet

Current PartRFQ

ATWINC1500B-MU-T

Microchip TechnologyIn Stock: 34778ATWINC1500B-MU-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATWINC1500A-MU-T is determined by the following critical parameters:

• Package Compatibility: Both parts must use 40-VFQFN Exposed Pad surface mount packaging to ensure PCB layout and assembly compatibility
• RF Protocol and Frequency: Both parts must support WiFi 802.11b/g/n at 2.4GHz to maintain wireless standard compliance
• Electrical Interface: Serial interfaces (I2C, SDIO, SPI, UART) and GPIO count must be compatible with existing firmware and hardware design
• Power Supply Range: Operating voltage range of 2.7V ~ 3.6V must be maintained
• Temperature Range: Operating temperature specification of -40°C ~ 85°C must be met
• Compliance Standards: RoHS3 compliance and MSL rating must match or exceed the original specification

The ATWINC1500B-MU-T meets all substitution criteria as a direct equivalent from the same manufacturer within the ATWINC1500 base product family.

Parameter Comparison

Engineering Selection Recommendations

The ATWINC1500B-MU-T is the direct substitute for the obsolete ATWINC1500A-MU-T. Both parts share identical package geometry, RF protocol support, and electrical interface specifications. The ATWINC1500B-MU-T is currently in active production status, ensuring long-term availability and supply chain continuity.

Key advantages of the ATWINC1500B-MU-T include improved power efficiency in receive mode (22mA ~ 58.5mA versus 29mA ~ 68mA) and increased RAM capacity (224kB versus 192kB). An additional GPIO pin (9 versus 8) provides enhanced design flexibility. These enhancements maintain full backward compatibility with existing ATWINC1500A-MU-T designs while offering performance improvements.

Both parts maintain identical compliance certifications: ROHS3 compliance, MSL 3 rating, REACH unaffected status, and ECCN 5A992C classification. No design modifications are required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the ATWINC1500B-MU-T be used as a direct replacement for the ATWINC1500A-MU-T?

A: Yes. Both parts use identical 40-VFQFN Exposed Pad packaging, support WiFi 802.11b/g/n at 2.4GHz, and share the same serial interface configuration (I2C, SDIO, SPI, UART). No PCB layout modifications are required.

Q: What are the differences between these two parts?

A: The ATWINC1500B-MU-T offers improved power efficiency in receive mode, increased RAM capacity (224kB versus 192kB), and one additional GPIO pin. Output power is marginally lower (20.5dBm versus 20.6dBm). All other electrical and RF specifications remain identical.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance, MSL 3 rating, REACH unaffected status, and ECCN classification. Regulatory requirements are unchanged.

Q: What is the package compatibility between these parts?

A: Both parts use 40-QFN (5x5) surface mount packaging with exposed pad. Physical dimensions and pin assignments are identical, ensuring full PCB compatibility.

Q: Why is the ATWINC1500A-MU-T obsolete?

A: The ATWINC1500A-MU-T has been superseded by the ATWINC1500B-MU-T within Microchip Technology's product portfolio. The newer revision offers performance enhancements while maintaining full backward compatibility.