MICRF102YM RF Transmitter IC - Equivalent & Substitute Parts

Part Overview

The MICRF102YM is an RF transmitter IC manufactured by Microchip Technology, designed for ASK/OOK modulation in the 300MHz to 470MHz frequency band. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The part operates at 4.75V to 5.5V supply voltage with a maximum data rate of 20kbps and -4dBm output power, suitable for remote keyless entry (RKE) applications with surface-mount antenna integration.

Substiute Parts

MICRF102YM

Microchip TechnologyIn Stock: 2433MICRF102YM Datasheet

Current PartRFQ

ATA8710-GHQW

Microchip TechnologyIn Stock: 1010ATA8710-GHQW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MICRF102YM is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate within or encompass the 300MHz to 470MHz band. The ATA8710-GHQW covers 418MHz to 477MHz within the UHF range, providing overlap in the upper frequency band critical for RKE applications.

Modulation Support: Both ASK and OOK modulation must be supported. The ATA8710-GHQW supports ASK and FSK modulation, maintaining ASK compatibility while extending protocol options.

Data Rate: The substitute must support the maximum 20kbps data rate requirement. The ATA8710-GHQW supports up to 80kbps, exceeding this specification.

Supply Voltage: The MICRF102YM operates at 4.75V to 5.5V. The ATA8710-GHQW operates at 1.9V to 3.6V, representing a different voltage domain that requires circuit redesign.

Package and Interface: The MICRF102YM uses 8-SOIC with PCB surface-mount antenna. The ATA8710-GHQW uses 32-VFQFN with SPI interface, requiring layout and firmware modifications.

Product Status and Compliance: Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

The ATA8710-GHQW is the manufacturer-recommended substitute for the obsolete MICRF102YM. Both components are manufactured by Microchip Technology and maintain ROHS3 compliance and REACH compliance status.

The ATA8710-GHQW is an active product with current manufacturing support, addressing the obsolescence status of the MICRF102YM. The substitute provides extended frequency coverage including the 418MHz to 477MHz band required for RKE applications, with enhanced data rate capability (80kbps versus 20kbps) and improved output power range (-12dBm to 14.5dBm).

Implementation of the ATA8710-GHQW requires circuit redesign due to differences in supply voltage (1.9V to 3.6V versus 4.75V to 5.5V), package footprint (32-VFQFN versus 8-SOIC), and data interface (SPI versus direct PCB mount). The substitute includes integrated microcontroller functionality with 20kB Flash, 1kB EEPROM, and 1kB SRAM, potentially reducing overall component count in redesigned systems.

Frequently Asked Questions (FAQ)

Q: Can the ATA8710-GHQW directly replace the MICRF102YM without circuit modifications?

A: No. The ATA8710-GHQW requires circuit redesign due to different supply voltage requirements (1.9V to 3.6V versus 4.75V to 5.5V), different package footprint (32-VFQFN versus 8-SOIC), and different data interface (SPI versus direct antenna connection). Firmware modifications are also required.

Q: Does the ATA8710-GHQW support the same frequency bands as the MICRF102YM?

A: Partial overlap exists. The ATA8710-GHQW covers 418MHz to 477MHz, which overlaps with the MICRF102YM's 300MHz to 470MHz range. The lower 300MHz to 418MHz band is not covered by the substitute. The ATA8710-GHQW also provides additional frequency bands at 310MHz to 318MHz and 836MHz to 956MHz.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the MICRF102YM and ATA8710-GHQW are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the primary advantage of the ATA8710-GHQW over the MICRF102YM?

A: The ATA8710-GHQW is an active product with current manufacturing support, eliminating obsolescence concerns. It provides higher data rate capability (80kbps versus 20kbps), wider output power range (-12dBm to 14.5dBm versus -4dBm), and integrated microcontroller functionality.

Q: Is the ATA8710-GHQW suitable for RKE applications?

A: Yes. The ATA8710-GHQW supports ASK modulation and operates within the 418MHz to 477MHz frequency band used in RKE systems. The integrated microcontroller and SPI interface provide enhanced functionality for remote control applications.