MICRF011YM-TR Equivalent & Substitute Parts

Part Overview

The MICRF011YM-TR is an RF receiver module designed for OOK (On-Off Keying) modulation in the 300MHz to 440MHz frequency band, with a sensitivity of -103dBm and maximum data rate of 10kbps. This component is optimized for garage opener applications and operates from a 4.75V to 5.5V supply. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	MICRF011YM-TR
Manufacturer	Microchip Technology
Product Status	Obsolete
Frequency Range	300MHz ~ 440MHz
Sensitivity	-103dBm
Modulation	OOK
Data Rate (Max)	10kbps
Supply Voltage	4.75V ~ 5.5V
Current - Receiving	2.4mA
Operating Temperature	-40°C ~ 85°C
Package	14-SOIC
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MICRF011YM-TR is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate within or encompass the 300MHz to 440MHz band. The MICRF220AYQS-TR, MICRF219AAYQS, and MICRF230YQS-TR all support 300MHz to 450MHz or 433.92MHz operation, meeting this requirement. The ATA8510-GHQW and ATA8515-GHQW support 315MHz, 433MHz, 868MHz, and 915MHz, which includes the primary operating frequencies.

Modulation Support: The substitute must support OOK modulation or equivalent ASK/OOK capability. All listed substitutes support ASK and/or OOK modulation.

Sensitivity: The substitute sensitivity must be equal to or better than -103dBm. All substitutes meet or exceed this specification.

Supply Voltage: The substitute must operate within compatible voltage ranges. The MICRF series receivers (MICRF219AAYQS, MICRF220AYQS-TR, MICRF230YQS-TR) operate at 3V to 3.6V or 4.6V to 5.5V, requiring voltage regulation if used in 4.75V to 5.5V systems. The ATA8510-GHQW and ATA8515-GHQW operate at 1.9V to 3.6V, also requiring voltage management.

Package and Mounting: All substitutes are surface mount components, maintaining PCB assembly compatibility.

Compliance: All substitutes are ROHS3 compliant and REACH unaffected, matching the original part's regulatory status.

Parameter Comparison

Parameter	MICRF011YM-TR	MICRF220AYQS-TR	MICRF219AAYQS	MICRF230YQS-TR	ATA8510-GHQW	ATA8515-GHQW
Frequency Range	300-440MHz	300-450MHz	300-450MHz	433.92MHz	315, 433, 868, 915MHz	315, 433, 868, 915MHz
Sensitivity	-103dBm	-112.5dBm	-112.5dBm	-112dBm	-125dBm	-125dBm
Modulation	OOK	ASK, OOK	ASK, OOK	ISM	ASK, FSK	ASK, FSK
Data Rate (Max)	10kbps	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	2.4mA	6mA	4.3mA	6mA	10.5mA	10.5mA
Operating Temperature	-40 to 85°C	-40 to 105°C	-40 to 105°C	-40 to 105°C	-40 to 85°C	-40 to 85°C
Package	14-SOIC	16-QSOP	16-QSOP	16-QSOP	32-VFQFN	32-VFQFN
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MICRF220AYQS-TR and MICRF219AAYQS: These RF receiver modules provide direct functional replacement for OOK/ASK reception in the 300MHz to 450MHz band with improved sensitivity (-112.5dBm). Both are active products with ROHS3 compliance. The MICRF220AYQS-TR offers higher data rate capability (20kbps) and is available in larger quantities. Voltage regulation to 3V to 3.6V is required for operation in 4.75V to 5.5V systems.

MICRF230YQS-TR: This receiver is optimized for 433.92MHz ISM band operation with -112dBm sensitivity and 20kbps data rate. It supports the wider supply voltage range of 4.6V to 5.5V, reducing voltage regulation requirements. This part is suitable for applications where 433.92MHz is the primary operating frequency.

ATA8510-GHQW and ATA8515-GHQW: These integrated RF transceiver modules with embedded MCU provide enhanced functionality beyond simple reception, including transmission capability and on-chip processing. They support the required frequency bands (315MHz, 433MHz) with superior sensitivity (-125dBm). These parts require voltage regulation to 1.9V to 3.6V and represent a more complex integration approach suitable for applications requiring bidirectional communication.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can MICRF220AYQS-TR directly replace MICRF011YM-TR without circuit modifications?

A: The MICRF220AYQS-TR provides equivalent RF reception functionality for OOK modulation in the 300MHz to 450MHz band. However, the supply voltage differs: MICRF011YM-TR operates at 4.75V to 5.5V, while MICRF220AYQS-TR requires 3V to 3.6V. Voltage regulation circuitry is necessary. Additionally, the package changes from 14-SOIC to 16-QSOP, requiring PCB layout redesign.

Q: What is the primary difference between the MICRF receiver series and the ATA8510/ATA8515 transceivers?

A: The MICRF series (MICRF220AYQS-TR, MICRF219AAYQS, MICRF230YQS-TR) are dedicated RF receivers optimized for reception-only applications. The ATA8510-GHQW and ATA8515-GHQW are integrated RF transceiver modules with embedded microcontroller units, supporting both transmission and reception. Selection depends on whether bidirectional communication is required.

Q: Which substitute offers the best sensitivity for weak signal reception?

A: The ATA8510-GHQW and ATA8515-GHQW provide the highest sensitivity at -125dBm, compared to -103dBm for the original MICRF011YM-TR. The MICRF series receivers offer -112dBm to -112.5dBm sensitivity, representing a 9dBm to 9.5dBm improvement over the original part.

Q: Are all substitutes available in active production status?

A: Yes. All listed substitutes are active products from Microchip Technology. The original MICRF011YM-TR is obsolete, making these active alternatives necessary for new designs and ongoing system support.

Q: What are the package considerations when substituting these parts?

A: The MICRF011YM-TR uses a 14-SOIC package. The MICRF receiver substitutes use 16-QSOP packages, and the ATA8510/ATA8515 transceivers use 32-VFQFN packages. Each package change requires PCB layout redesign and different land pattern footprints. Pin assignments and signal routing will differ significantly.

Q: Which substitute is most suitable for garage opener applications?

A: The MICRF220AYQS-TR and MICRF230YQS-TR are optimized for general-purpose ISM band applications including garage openers. The MICRF230YQS-TR is specifically designed for 433.92MHz operation with on-board trace antenna, making it particularly suitable for garage door remote control systems. The MICRF220AYQS-TR provides broader frequency coverage (300MHz to 450MHz) if multi-frequency support is required.

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