MICRF007YM RF Receiver Equivalent & Substitute Parts

Part Overview

The MICRF007YM is a QwikRadio® RF Receiver manufactured by Microchip Technology, designed for ASK/OOK modulation in the 300MHz to 440MHz frequency band. This component operates as a dedicated receiver with -96dBm sensitivity and supports data rates up to 2.1kbps, making it suitable for remote keyless entry (RKE) applications. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

MICRF007YM

Microchip TechnologyIn Stock: 1161MICRF007YM Datasheet

Current PartRFQ

ATA8510-GHQW

Microchip TechnologyIn Stock: 2634ATA8510-GHQW Datasheet

MFR RecommendedRFQ

ATA8515-GHQW

Microchip TechnologyIn Stock: 1699ATA8515-GHQW Datasheet

MFR RecommendedRFQ

MICRF219AAYQS

Microchip TechnologyIn Stock: 2603MICRF219AAYQS Datasheet

MFR RecommendedRFQ

MICRF220AYQS

Microchip TechnologyIn Stock: 22314MICRF220AYQS Datasheet

MFR RecommendedRFQ

MICRF230YQS

Microchip TechnologyIn Stock: 1555MICRF230YQS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MICRF007YM is determined by the following critical parameters:

Functional Requirements:

• Modulation support: ASK and/or OOK capability
• Frequency coverage: Overlap with 300MHz ~ 440MHz band
• Receiver sensitivity: Equal to or better than -96dBm
• Data rate support: Minimum 2.1kbps capability

Electrical Compatibility:

• Supply voltage range must accommodate 4.75V ~ 5.5V operation
• Receiving current consumption must be acceptable for the application
• Operating temperature range: -40°C ~ 85°C minimum

Mechanical & Environmental:

• Surface mount technology
• RoHS3 compliance
• MSL rating suitable for storage and handling

The substitute parts are grouped into two categories based on functional architecture:

Category 1 - Direct RF Receiver Substitutes (MICRF219AAYQS, MICRF220AYQS, MICRF230YQS): These are dedicated RF receiver components with ASK/OOK modulation support, operating in overlapping frequency bands with improved sensitivity specifications.

Category 2 - Integrated TxRx + MCU Substitutes (ATA8510-GHQW, ATA8515-GHQW): These are integrated transceiver modules with embedded microcontroller functionality. While they provide both transmit and receive capability, they support ASK/FSK modulation and operate across ISM bands that include the 433MHz frequency used in RKE applications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Receiver Replacement (Recommended for Pin-Compatible Designs):

MICRF220AYQS is the primary substitute for MICRF007YM in applications requiring dedicated RF receiver functionality. This component maintains ASK/OOK modulation support, operates within the 300MHz ~ 450MHz band covering the original 300MHz ~ 440MHz range, and provides superior sensitivity at -112.5dBm. The 20kbps data rate capability exceeds the original 2.1kbps specification. However, the supply voltage range (3V ~ 3.6V) differs from the original (4.75V ~ 5.5V), requiring voltage regulation in 5V systems. The 16-QSOP package differs from the original 8-SOIC, necessitating PCB layout modification. All RoHS3 compliance and MSL ratings are maintained.

MICRF219AAYQS provides equivalent functionality to MICRF220AYQS with identical frequency and modulation specifications but lacks specified data rate information. This component is suitable where data rate specifications are not critical to application performance.

MICRF230YQS operates at the fixed 433.92MHz frequency, suitable for applications requiring single-frequency ISM band operation. The 20kbps data rate and -112dBm sensitivity meet or exceed original specifications. Supply voltage range (3.5V ~ 5.5V) provides partial overlap with the original specification, allowing operation in 5V systems with appropriate voltage regulation. The 16-QSOP package requires PCB redesign.

For Integrated Transceiver Replacement (System-Level Redesign):

ATA8510-GHQW and ATA8515-GHQW are integrated RF transceiver modules with embedded microcontroller functionality. These components support ASK and FSK modulation across ISM bands including 433MHz, providing superior sensitivity at -125dBm. The integrated 20kB Flash memory and SPI interface enable standalone operation without external microcontroller. Supply voltage range (1.9V ~ 3.6V) requires voltage regulation for 5V systems. The 32-VFQFN package represents significant footprint increase from the original 8-SOIC. These substitutes are appropriate for designs undergoing system-level redesign or where integrated transceiver functionality provides cost or performance advantages.

ATA8515-GHQW differs from ATA8510-GHQW only in packaging format (Cut Tape & Digi-Reel® versus standard packaging) and MSL rating (3 versus 1). Electrical and functional specifications are identical.

All substitute components maintain ROHS3 compliance and are manufactured by Microchip Technology, ensuring supply chain continuity and technical support consistency.

Frequently Asked Questions (FAQ)

Q: Can MICRF220AYQS directly replace MICRF007YM without circuit modification?

A: No. While MICRF220AYQS provides equivalent RF receiver functionality with superior specifications, three modifications are required: (1) Supply voltage regulation from 5V to 3V ~ 3.6V range, (2) PCB layout redesign due to package change from 8-SOIC to 16-QSOP, and (3) Pin reassignment based on different pinout. Functional compatibility exists, but hardware redesign is necessary.

Q: What is the primary difference between MICRF219AAYQS and MICRF220AYQS?

A: Both components operate in the 300MHz ~ 450MHz frequency band with -112.5dBm sensitivity and ASK/OOK modulation support. MICRF220AYQS specifies a maximum data rate of 20kbps and receiving current of 6mA. MICRF219AAYQS does not provide data rate specification in the available documentation. For applications requiring confirmed data rate performance, MICRF220AYQS is the specified choice.

Q: Why does MICRF230YQS operate at only 433.92MHz when the original MICRF007YM covers 300MHz ~ 440MHz?

A: MICRF230YQS is optimized for single-frequency ISM band operation at 433.92MHz, a standard frequency for European RKE and industrial applications. This fixed-frequency design provides optimized performance at this specific frequency but is not suitable for applications requiring multi-frequency coverage across the 300MHz ~ 440MHz band. Use MICRF220AYQS or MICRF219AAYQS for multi-frequency applications.

Q: Are ATA8510-GHQW and ATA8515-GHQW suitable replacements for MICRF007YM?

A: These integrated transceiver modules provide RF receiver functionality with superior sensitivity (-125dBm) and support ASK modulation compatible with the original application. However, they represent a system-level redesign rather than a direct component substitution. The integrated microcontroller, larger package (32-VFQFN), different supply voltage range (1.9V ~ 3.6V), and SPI interface require significant circuit and firmware modifications. These substitutes are appropriate for new designs or major system revisions where integrated transceiver functionality provides advantages.

Q: What is the impact of package change from 8-SOIC to 16-QSOP or 32-VFQFN?

A: Package changes require complete PCB layout redesign, including trace routing, via placement, and component placement. The 16-QSOP package increases footprint compared to 8-SOIC, while the 32-VFQFN package represents substantial size increase. Pin count increases from 8 to 16 or 32, requiring firmware or circuit logic updates to accommodate additional pins and functionality. These changes are not transparent substitutions and require engineering validation.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. All substitute components listed (MICRF219AAYQS, MICRF220AYQS, MICRF230YQS, ATA8510-GHQW, ATA8515-GHQW) are ROHS3 compliant, maintaining environmental and regulatory compatibility with the original MICRF007YM.

Q: What is the MSL rating difference between ATA8510-GHQW and ATA8515-GHQW?

A: ATA8510-GHQW has MSL rating 1 (Unlimited moisture sensitivity level), while ATA8515-GHQW has MSL rating 3 (168 hours). MSL 1 components have no moisture sensitivity restrictions during storage and handling. MSL 3 components require controlled storage conditions and have a 168-hour floor life after moisture exposure. For applications with extended storage or high-humidity environments, ATA8510-GHQW is preferred. All other electrical and functional specifications are identical between these two parts.

Q: Which substitute provides the best sensitivity improvement over MICRF007YM?

A: ATA8510-GHQW and ATA8515-GHQW provide the best sensitivity at -125dBm, representing a 29dBm improvement over the original -96dBm specification. MICRF220AYQS and MICRF230YQS provide -112.5dBm and -112dBm respectively, representing approximately 16dBm improvement. Improved sensitivity enables reception of weaker signals and extended operating range in RKE and similar applications.