MICRF009YM-TR Equivalent & Substitute Parts

Part Overview

The MICRF009YM-TR is an RF receiver IC designed for ASK/OOK modulation in the 300–440 MHz frequency band, commonly used in remote keyless entry (RKE) applications. This part operates at 4.75V–5.5V supply voltage with a sensitivity of -102 dBm and supports data rates up to 2 kbps. The device is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	MICRF009YM-TR
Manufacturer	Microchip Technology
Product Status	Obsolete
Frequency Range	300 MHz – 440 MHz
Modulation	ASK, OOK
Sensitivity	-102 dBm
Data Rate (Max)	2 kbps
Supply Voltage	4.75 V – 5.5 V
Current – Receiving	2.9 mA
Operating Temperature	-40°C – 85°C
Package	16-SOIC (0.154", 3.90 mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MICRF009YM-TR is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate within or encompass the 300–440 MHz band. Parts supporting 315 MHz, 433 MHz, and 868/915 MHz are acceptable for applications using these specific frequencies within the original range.

Modulation Support: ASK and OOK modulation must be supported. Substitutes supporting ASK and FSK are compatible for ASK/OOK applications.

Sensitivity: The substitute sensitivity must meet or exceed -102 dBm. Higher sensitivity values (more negative) indicate improved performance.

Supply Voltage: The substitute must operate within a voltage range compatible with the system design. The MICRF009YM-TR operates at 4.75–5.5 V; substitutes with overlapping or wider voltage ranges are acceptable.

Package and Mounting: Surface mount packages with compatible pinouts and footprints are required. Pin count and package type determine physical compatibility.

Product Status and Compliance: Active status substitutes are preferred for long-term availability. All substitutes must maintain ROHS3 compliance and REACH unaffected status.

Parameter Comparison

Parameter	MICRF009YM-TR	ATA8510-GHQW	ATA8515-GHQW	MICRF219AYQS-TR	MICRF220AYQS	MICRF230YQS-TR
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Product Status	Obsolete	Active	Active	Active	Active	Active
Frequency Range	300–440 MHz	315, 433, 868, 915 MHz	315, 433, 868, 915 MHz	300–450 MHz	300–450 MHz	433.92 MHz
Modulation	ASK, OOK	ASK, FSK	ASK, FSK	ASK, OOK	ASK, OOK	ISM
Sensitivity	-102 dBm	-125 dBm	-125 dBm	-110 dBm	-112.5 dBm	-112 dBm
Data Rate (Max)	2 kbps	—	—	10 kbps	20 kbps	20 kbps
Supply Voltage	4.75–5.5 V	1.9–3.6 V	1.9–3.6 V	3–3.6 V	3–3.6 V	4.6–5.5 V
Current – Receiving	2.9 mA	10.5 mA	10.5 mA	6 mA	6 mA	6 mA
Operating Temperature	-40°C – 85°C	-40°C – 85°C	-40°C – 85°C	-40°C – 105°C	-40°C – 105°C	-40°C – 105°C
Package	16-SOIC	32-VFQFN Exposed Pad	32-VFQFN Exposed Pad	16-QSOP	16-QSOP	16-QSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Receiver Substitutes (Recommended for Pin-Compatible Replacement):

MICRF219AYQS-TR, MICRF220AYQS, and MICRF230YQS-TR are RF receiver ICs with 16-QSOP packages. These parts maintain receiver-only functionality similar to the MICRF009YM-TR. MICRF220AYQS offers the highest sensitivity (-112.5 dBm) and maximum data rate (20 kbps) among receiver options, with active product status and extended temperature range (-40°C – 105°C). MICRF230YQS-TR is optimized for 433.92 MHz ISM band operation and supports the full 4.6–5.5 V supply range, making it suitable for systems requiring 5 V operation. All three maintain ROHS3 compliance and unlimited moisture sensitivity rating.

Transceiver Alternative (System-Level Redesign):

ATA8510-GHQW and ATA8515-GHQW are integrated RF transceiver plus microcontroller solutions in 32-VFQFN packages. These parts provide both transmit and receive capability with integrated MCU functionality, requiring significant PCB layout and firmware redesign. Supply voltage operates at 1.9–3.6 V, incompatible with 5 V systems without additional regulation. These substitutes are suitable only for new designs where transceiver functionality and integrated MCU processing are required.

Product Status Consideration:

All substitute parts maintain active product status, ensuring long-term availability and manufacturing support. The MICRF009YM-TR obsolete status necessitates migration to active alternatives for production continuity.

Frequently Asked Questions (FAQ)

Q: Can MICRF220AYQS directly replace MICRF009YM-TR in existing designs?

A: MICRF220AYQS is functionally compatible for ASK/OOK receiver applications in the 300–450 MHz band. However, the package differs (16-QSOP vs. 16-SOIC), requiring PCB layout modification. Supply voltage compatibility must be verified: MICRF220AYQS operates at 3–3.6 V, while MICRF009YM-TR operates at 4.75–5.5 V. Voltage regulation or system redesign may be necessary.

Q: What is the difference between MICRF219AYQS-TR and MICRF220AYQS?

A: Both parts use 16-QSOP packages and support 300–450 MHz ASK/OOK reception. MICRF220AYQS provides superior sensitivity (-112.5 dBm vs. -110 dBm) and higher data rate support (20 kbps vs. 10 kbps). MICRF220AYQS includes RSSI (Received Signal Strength Indicator) functionality. Both operate at 3–3.6 V and -40°C – 105°C.

Q: Are ATA8510-GHQW and ATA8515-GHQW suitable substitutes for receiver-only applications?

A: ATA8510-GHQW and ATA8515-GHQW are transceiver plus MCU devices, not receiver-only ICs. These parts are suitable only for applications requiring integrated transmit capability and microcontroller functionality. For receiver-only replacement, use MICRF219AYQS-TR, MICRF220AYQS, or MICRF230YQS-TR.

Q: What is the impact of supply voltage differences on substitution?

A: MICRF009YM-TR operates at 4.75–5.5 V. MICRF219AYQS-TR and MICRF220AYQS operate at 3–3.6 V, requiring voltage regulation or system redesign. MICRF230YQS-TR supports 4.6–5.5 V, compatible with 5 V systems without additional regulation. Verify system power supply capability before substitution.

Q: Does package change affect PCB compatibility?

A: Yes. MICRF009YM-TR uses 16-SOIC (0.154", 3.90 mm width). MICRF219AYQS-TR, MICRF220AYQS, and MICRF230YQS-TR use 16-QSOP (0.154", 3.90 mm width). While both are 16-pin packages with identical width, pinout and footprint differ. PCB layout modification is required. ATA8510-GHQW and ATA8515-GHQW use 32-VFQFN packages, requiring complete redesign.

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

A: ATA8510-GHQW and ATA8515-GHQW provide -125 dBm sensitivity, superior to all receiver-only alternatives. However, these are transceiver devices requiring system redesign. Among receiver-only substitutes, MICRF220AYQS offers -112.5 dBm sensitivity, the highest available in the 16-QSOP package.

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