MICRF011YN Equivalent & Substitute Parts

Part Overview

The MICRF011YN is a QwikRadio® RF Receiver OOK module from Microchip Technology designed for 300MHz to 440MHz frequency band applications, particularly garage openers and similar remote control systems. This component operates as a through-hole 14-DIP package with -103dBm sensitivity and 10kbps maximum data rate. The product is currently obsolete, making equivalent and substitute parts necessary for new designs or legacy system replacements.

Key Parameters

Parameter	MICRF011YN
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
Mounting Type	Through Hole
Package	14-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MICRF011YN is determined by the following critical parameters: frequency coverage (300MHz ~ 440MHz band), modulation support (OOK or ASK/OOK), sensitivity performance (-103dBm or better), supply voltage compatibility, operating temperature range, and RoHS3 compliance status.

The substitute parts are grouped into two categories:

Category 1: Integrated TxRx + MCU Solutions (ATA8510-GHQW, ATA8515-GHQW) These parts extend functionality beyond receive-only operation by integrating both transmit and receive capabilities with embedded microcontroller. They operate in the ISM < 1GHz band covering 315MHz, 433MHz, 868MHz, and 915MHz, which overlaps the MICRF011YN frequency range. Both require surface mount implementation and operate at lower supply voltages (1.9V ~ 3.6V).

Category 2: RF Receiver-Only Solutions (MICRF219AAYQS, MICRF220AYQS, MICRF230YQS) These parts maintain receiver-only functionality similar to MICRF011YN. MICRF219AAYQS and MICRF220AYQS cover 300MHz ~ 450MHz with ASK/OOK modulation support. MICRF230YQS is frequency-specific at 433.92MHz with ISM modulation. All three are surface mount 16-QSOP packages with improved sensitivity (-112.5dBm or -112dBm) compared to the original part.

Parameter Comparison

Parameter	MICRF011YN	ATA8510-GHQW	ATA8515-GHQW	MICRF219AAYQS	MICRF220AYQS	MICRF230YQS
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Product Status	Obsolete	Active	Active	Active	Active	Active
Frequency	300MHz ~ 440MHz	315MHz, 433MHz, 868MHz, 915MHz	315MHz, 433MHz, 868MHz, 915MHz	300MHz ~ 450MHz	300MHz ~ 450MHz	433.92MHz
Sensitivity	-103dBm	-125dBm	-125dBm	-112.5dBm	-112.5dBm	-112dBm
Modulation or Protocol	OOK	ASK, FSK	ASK, FSK	ASK, OOK	ASK, OOK	ISM
Supply Voltage	4.75V ~ 5.5V	1.9V ~ 3.6V	1.9V ~ 3.6V	3V ~ 3.6V	3V ~ 3.6V	4.6V ~ 5.5V
Current - Receiving	2.4mA	10.5mA	10.5mA	4.3mA	6mA	6mA
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
Mounting Type	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-DIP (0.300", 7.62mm)	32-VFQFN Exposed Pad	32-VFQFN Exposed Pad	16-SSOP (0.154", 3.90mm Width)	16-SSOP (0.154", 3.90mm Width)	16-SSOP (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Receiver Replacement (Preferred for Legacy Designs): MICRF220AYQS is the primary substitute for MICRF011YN. It maintains receiver-only functionality with OOK modulation support across the 300MHz ~ 450MHz band, covering the original 300MHz ~ 440MHz range. Sensitivity is improved at -112.5dBm versus -103dBm. The part is active status with ROHS3 compliance. Primary design consideration is the transition from through-hole 14-DIP to surface mount 16-QSOP packaging and supply voltage reduction from 4.75V ~ 5.5V to 3V ~ 3.6V.

MICRF219AAYQS provides equivalent frequency and modulation coverage with identical sensitivity and package format. Selection between MICRF219AAYQS and MICRF220AYQS depends on data rate requirements: MICRF220AYQS supports 20kbps maximum versus unspecified for MICRF219AAYQS, and MICRF220AYQS includes RSSI feature.

MICRF230YQS is suitable only for applications operating exclusively at 433.92MHz. It offers the widest supply voltage range (4.6V ~ 5.5V) among receiver-only options, providing better compatibility with 5V systems through voltage regulation.

For Integrated Solutions (New Designs): ATA8510-GHQW and ATA8515-GHQW provide transmit and receive capability with embedded microcontroller, suitable for bidirectional communication systems. Both cover the 433MHz frequency band within the original range. Superior sensitivity (-125dBm) and ASK/FSK modulation support enable more robust link budgets. These require surface mount implementation and operate at 1.9V ~ 3.6V supply voltage. ATA8510-GHQW and ATA8515-GHQW are functionally equivalent; selection is based on packaging preference and moisture sensitivity level tolerance (ATA8510-GHQW: MSL 1, ATA8515-GHQW: MSL 3).

All substitute parts maintain ROHS3 compliance and EAR99 export classification consistent with the original MICRF011YN.

Frequently Asked Questions (FAQ)

Q: Can MICRF220AYQS directly replace MICRF011YN in existing PCB designs? A: No. MICRF011YN uses through-hole 14-DIP packaging while MICRF220AYQS requires surface mount 16-QSOP footprint. PCB redesign is necessary. Additionally, supply voltage changes from 4.75V ~ 5.5V to 3V ~ 3.6V, requiring power supply circuit modification.

Q: What is the key difference between MICRF219AAYQS and MICRF220AYQS? A: Both cover 300MHz ~ 450MHz with ASK/OOK modulation and -112.5dBm sensitivity. MICRF220AYQS specifies 20kbps maximum data rate and includes RSSI feature. MICRF219AAYQS does not specify data rate or RSSI capability. For applications requiring data rate specification or signal strength indication, MICRF220AYQS is the appropriate selection.

Q: Why would I select ATA8510-GHQW or ATA8515-GHQW over MICRF220AYQS? A: ATA8510-GHQW and ATA8515-GHQW integrate transmit capability, microcontroller, and memory (20kB Flash), enabling bidirectional communication and local processing. MICRF220AYQS is receive-only. Select integrated solutions for applications requiring transmission or embedded processing. Select MICRF220AYQS for receive-only applications to minimize component count and power consumption.

Q: Is MICRF230YQS suitable for all applications using MICRF011YN? A: No. MICRF230YQS operates exclusively at 433.92MHz, making it suitable only for applications using this specific frequency. MICRF011YN covers 300MHz ~ 440MHz, supporting multiple frequencies within this band. Use MICRF230YQS only when application frequency is confirmed as 433.92MHz.

Q: What are the supply voltage compatibility considerations? A: MICRF011YN operates at 4.75V ~ 5.5V. MICRF220AYQS and MICRF219AAYQS require 3V ~ 3.6V, necessitating voltage regulation. MICRF230YQS accepts 4.6V ~ 5.5V, allowing direct connection to 5V supplies with appropriate current limiting. ATA8510-GHQW and ATA8515-GHQW require 1.9V ~ 3.6V, requiring step-down regulation from 5V systems.

Q: Are all substitute parts RoHS3 compliant? A: Yes. MICRF011YN and all listed substitute parts (ATA8510-GHQW, ATA8515-GHQW, MICRF219AAYQS, MICRF220AYQS, MICRF230YQS) are ROHS3 compliant with EAR99 export classification.

Q: What is the operating temperature range difference? A: MICRF011YN operates -40°C ~ 85°C. MICRF219AAYQS, MICRF220AYQS, and MICRF230YQS extend to -40°C ~ 105°C, providing wider high-temperature operation. ATA8510-GHQW and ATA8515-GHQW maintain -40°C ~ 85°C identical to the original part.

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