MICRF007YM-TR Equivalent & Substitute Parts

Part Overview

The MICRF007YM-TR is an RF receiver IC designed for ASK/OOK modulation in the 300–440 MHz frequency band with -96 dBm sensitivity and 2.1 kbps maximum data rate. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The part operates on 4.75V–5.5V supply voltage in an 8-SOIC surface mount package and is commonly used in remote keyless entry (RKE) applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	MICRF007YM-TR
Manufacturer	Microchip Technology
Product Status	Obsolete
Frequency Range	300 MHz – 440 MHz
Sensitivity	-96 dBm
Modulation	ASK, OOK
Data Rate (Max)	2.1 kbps
Supply Voltage	4.75 V – 5.5 V
Current – Receiving	3 mA
Operating Temperature	-40°C – 85°C
Package	8-SOIC
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MICRF007YM-TR is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate within or encompass the 300–440 MHz band. All listed substitutes support 300–450 MHz or 433.92 MHz operation, meeting this requirement.

Modulation Support: ASK/OOK modulation capability is mandatory. MICRF219AYQS-TR, MICRF220AYQS-TR, and MICRF230YQS-TR all support ASK/OOK or ISM protocols compatible with the original specification.

Sensitivity Performance: The original part specifies -96 dBm sensitivity. Substitute parts offer equal or superior sensitivity (-110 dBm to -125 dBm), ensuring maintained or improved receiver performance.

Supply Voltage Range: The MICRF007YM-TR operates on 4.75V–5.5V. Substitutes operate on 3V–3.6V (MICRF219AYQS-TR, MICRF220AYQS-TR) or 4.6V–5.5V (MICRF230YQS-TR), requiring voltage regulation consideration in system design.

Package and Mounting: All substitutes are surface mount components. MICRF219AYQS-TR, MICRF220AYQS-TR, and MICRF230YQS-TR use 16-QSOP packages, while ATA8510-GHQW and ATA8515-GHQW use 32-VFQFN packages. Package selection depends on PCB layout constraints.

Data Rate: The original part supports 2.1 kbps. Substitutes support 10 kbps (MICRF219AYQS-TR) or 20 kbps (MICRF220AYQS-TR, MICRF230YQS-TR), providing headroom for higher-speed applications.

Parameter Comparison

Parameter	MICRF007YM-TR	MICRF219AYQS-TR	MICRF220AYQS-TR	MICRF230YQS-TR	ATA8510-GHQW	ATA8515-GHQW
Frequency Range	300–440 MHz	300–450 MHz	300–450 MHz	433.92 MHz	315, 433, 868, 915 MHz	315, 433, 868, 915 MHz
Modulation	ASK, OOK	ASK, OOK	ASK, OOK	ISM	ASK, FSK	ASK, FSK
Sensitivity	-96 dBm	-110 dBm	-112.5 dBm	-112 dBm	-125 dBm	-125 dBm
Data Rate (Max)	2.1 kbps	10 kbps	20 kbps	20 kbps	—	—
Supply Voltage	4.75–5.5 V	3–3.6 V	3–3.6 V	4.6–5.5 V	1.9–3.6 V	1.9–3.6 V
Current – Receiving	3 mA	6 mA	6 mA	6 mA	10.5 mA	10.5 mA
Operating Temperature	-40–85°C	-40–105°C	-40–105°C	-40–105°C	-40–85°C	-40–85°C
Package	8-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

For Direct Receiver Replacement (Minimal Redesign): MICRF220AYQS-TR is the primary substitute for MICRF007YM-TR. Both are dedicated RF receivers with ASK/OOK support, active product status, and ROHS3 compliance. The 16-QSOP package requires PCB layout modification from the original 8-SOIC, but electrical integration is straightforward. Supply voltage must be regulated to 3–3.6V. Superior sensitivity (-112.5 dBm vs. -96 dBm) and higher data rate (20 kbps vs. 2.1 kbps) provide performance margin.

For Integrated Transceiver Applications: ATA8510-GHQW and ATA8515-GHQW combine RF transceiver and microcontroller functionality in a single 32-VFQFN package. These parts are suitable when system architecture permits integration of RF and control logic. Both support ASK/FSK modulation across ISM bands including 433 MHz. Active product status and ROHS3 compliance are confirmed. Supply voltage range (1.9–3.6V) requires appropriate power management. Increased receiving current (10.5 mA vs. 3 mA) must be evaluated against power budget constraints.

For 433.92 MHz Specific Applications: MICRF230YQS-TR is optimized for 433.92 MHz operation with -112 dBm sensitivity and 20 kbps data rate. Supply voltage range (4.6–5.5V) accommodates both 3.3V and 5V systems with minimal regulation. Active product status and ROHS3 compliance are confirmed. This part is suitable when application frequency is fixed at 433.92 MHz and voltage flexibility is required.

For Extended Temperature Range: MICRF219AYQS-TR and MICRF220AYQS-TR support -40°C to 105°C operating temperature, exceeding the original -40°C to 85°C specification. These parts are preferred for industrial and automotive applications requiring extended temperature performance.

Frequently Asked Questions (FAQ)

Q: Can MICRF220AYQS-TR directly replace MICRF007YM-TR without firmware changes? A: Electrical substitution is possible with voltage regulation to 3–3.6V. However, the 16-QSOP package differs from the original 8-SOIC, requiring PCB layout redesign. Firmware compatibility depends on the data interface protocol; both parts support ASK/OOK modulation, but pin assignments and control sequences must be verified against application schematics.

Q: What is the key difference between MICRF219AYQS-TR and MICRF220AYQS-TR? A: Both are ASK/OOK RF receivers in 16-QSOP packages with identical supply voltage (3–3.6V) and receiving current (6 mA). MICRF220AYQS-TR offers superior sensitivity (-112.5 dBm vs. -110 dBm) and higher data rate (20 kbps vs. 10 kbps). MICRF220AYQS-TR is the recommended choice for new designs.

Q: Why do ATA8510-GHQW and ATA8515-GHQW have higher receiving current than the original part? A: These are integrated transceiver plus microcontroller devices, not dedicated receivers. The 10.5 mA receiving current reflects the combined RF and digital logic power consumption. They are suitable only when system architecture permits integration of RF and control functions.

Q: Is MICRF230YQS-TR suitable for multi-frequency applications? A: No. MICRF230YQS-TR is optimized for 433.92 MHz operation only. For applications requiring 300–440 MHz tuning range, MICRF220AYQS-TR or MICRF219AYQS-TR are appropriate choices.

Q: What supply voltage should be used with MICRF220AYQS-TR in a 5V system? A: MICRF220AYQS-TR requires 3–3.6V supply. A linear or switching voltage regulator must be used to step down from 5V to 3.3V. Ensure regulator output noise and ripple meet RF receiver specifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. MICRF007YM-TR, MICRF219AYQS-TR, MICRF220AYQS-TR, MICRF230YQS-TR, ATA8510-GHQW, and ATA8515-GHQW are all ROHS3 compliant and REACH unaffected.

Q: What is the moisture sensitivity level (MSL) difference between substitutes? A: MICRF007YM-TR, MICRF219AYQS-TR, and MICRF220AYQS-TR have MSL 1 (unlimited shelf life). MICRF230YQS-TR has MSL 2 (1 year). ATA8515-GHQW has MSL 3 (168 hours). Storage and handling requirements increase with MSL rating; refer to component datasheets for specific moisture control procedures.

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