MICRF010YM RF Receiver Equivalent & Substitute Parts

Part Overview

The MICRF010YM is a QwikRadio® RF receiver IC manufactured by Microchip Technology, designed for ASK/OOK modulation in the 300–440MHz frequency band. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The MICRF010YM operates as a dedicated receiver with automatic tuning capability, suitable for remote keyless entry (RKE) applications and similar ISM band wireless systems.

Key Parameters

Parameter	MICRF010YM
Manufacturer	Microchip Technology
Product Status	Obsolete
Frequency Range	300MHz – 440MHz
Modulation	ASK, OOK
Sensitivity	–104dBm
Data Rate (Max)	2kbps
Supply Voltage	4.75V – 5.5V
Current – Receiving	2.9mA
Operating Temperature	–40°C – 85°C
Package	8-SOIC
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MICRF010YM is determined by the following critical parameters:

Frequency Coverage: The substitute must support the 300–440MHz band or a subset thereof that includes the application frequency.
Modulation Support: ASK and OOK modulation capability is required.
Functional Type: Receiver-only or integrated transceiver with receiver capability.
Supply Voltage Compatibility: Operating voltage range must overlap with or be compatible with the application's power supply.
Package and Mounting: Surface mount packages suitable for PCB integration.
Regulatory Compliance: RoHS3 compliance and REACH unaffected status.

The substitute parts are grouped into two categories:

Direct RF Receiver Replacements (MICRF219AAYQS, MICRF220AYQS, MICRF230YQS): Single-function receiver ICs with ASK/OOK capability in the 300–450MHz band.
Integrated Transceiver Alternatives (ATA8510-GHQW, ATA8515-GHQW): Combined RF transceiver and microcontroller units supporting ISM bands including 433MHz.

Parameter Comparison

Parameter	MICRF010YM	MICRF219AAYQS	MICRF220AYQS	MICRF230YQS	ATA8510-GHQW	ATA8515-GHQW
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Product Status	Obsolete	Active	Active	Active	Active	Active
Frequency Range	300–440MHz	300–450MHz	300–450MHz	433.92MHz	315, 433, 868, 915MHz	315, 433, 868, 915MHz
Modulation	ASK, OOK	ASK, OOK	ASK, OOK	ISM	ASK, FSK	ASK, FSK
Sensitivity	–104dBm	–112.5dBm	–112.5dBm	–112dBm	–125dBm	–125dBm
Data Rate (Max)	2kbps	—	20kbps	20kbps	—	—
Supply Voltage	4.75–5.5V	3–3.6V	3–3.6V	4.6–5.5V	1.9–3.6V	1.9–3.6V
Current – Receiving	2.9mA	4.3mA	6mA	6mA	10.5mA	10.5mA
Operating Temperature	–40°C – 85°C	–40°C – 105°C	–40°C – 105°C	–40°C – 105°C	–40°C – 85°C	–40°C – 85°C
Package	8-SOIC	16-QSOP	16-QSOP	16-QSOP	32-VFQFN	32-VFQFN
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Receiver Replacement:

MICRF220AYQS is the primary substitute for receiver-only applications. It maintains ASK/OOK modulation support, covers the 300–450MHz band inclusive of the MICRF010YM operating range, and is in active production status. The 16-QSOP package requires PCB layout modification compared to the 8-SOIC original. Supply voltage is 3–3.6V, requiring voltage regulation if the application uses 5V directly.

MICRF219AAYQS provides equivalent receiver functionality with identical frequency and modulation specifications to MICRF220AYQS but with lower receiving current (4.3mA vs. 6mA). This part is suitable where power consumption is a secondary concern.

MICRF230YQS is a fixed-frequency receiver tuned to 433.92MHz. Use this part only if the application operates exclusively at this frequency. Supply voltage range (4.6–5.5V) provides broader compatibility with existing 5V systems.

For Integrated Transceiver Solutions:

ATA8510-GHQW and ATA8515-GHQW are combined RF transceiver and microcontroller units. These parts are suitable for applications requiring both transmission and reception capability, or where on-board processing is beneficial. Both support 433MHz operation within their ISM band coverage. Supply voltage (1.9–3.6V) and package size (32-VFQFN) differ significantly from the original, requiring complete circuit redesign. These parts are in active production status.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original MICRF010YM.

Frequently Asked Questions (FAQ)

Q: Can MICRF220AYQS directly replace MICRF010YM without circuit modification?

A: No. While both support ASK/OOK modulation in overlapping frequency ranges, the MICRF220AYQS uses a 16-QSOP package versus the 8-SOIC of the original. PCB layout changes are required. Additionally, the supply voltage is 3–3.6V, requiring voltage regulation if the application uses 5V.

Q: Why do ATA8510-GHQW and ATA8515-GHQW have higher receiving current than the MICRF010YM?

A: These are integrated transceiver and microcontroller units, not dedicated receivers. The higher current reflects the additional on-board processing capability and dual transmit/receive functionality. They are suitable only for applications requiring this integrated functionality.

Q: Is MICRF230YQS suitable for applications operating across the full 300–440MHz band?

A: No. MICRF230YQS is a fixed-frequency receiver tuned to 433.92MHz only. It is suitable only for applications operating at this specific frequency.

Q: What is the voltage compatibility between MICRF010YM (4.75–5.5V) and MICRF220AYQS (3–3.6V)?

A: The supply voltage ranges do not overlap. Applications using MICRF010YM at 5V require a voltage regulator to step down to 3–3.6V for MICRF220AYQS operation.

Q: Are all substitute parts in active production status?

A: Yes. MICRF219AAYQS, MICRF220AYQS, MICRF230YQS, ATA8510-GHQW, and ATA8515-GHQW are all in active production status, ensuring long-term availability compared to the obsolete MICRF010YM.

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

A: Both parts are functionally equivalent integrated transceiver and microcontroller units. The primary difference is packaging: ATA8510-GHQW is supplied in standard packaging, while ATA8515-GHQW is supplied in Cut Tape (CT) and Digi-Reel® format. Moisture sensitivity level differs (MSL 1 vs. MSL 3).

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