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MICRF009YM
Microchip Technology
RF RX ASK/OOK 300-440MHZ 16SOIC
7315 Pcs New Original In Stock
QwikRadio® RF Receiver ASK, OOK 300MHz ~ 440MHz -102dBm 2kbps PCB, Surface Mount 16-SOIC
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (186 Ratings)
MICRF009YM
Product Overview
1298065
DiGi Electronics Part Number
MICRF009YM-DGManufacturer
Microchip Technology
MICRF009YM
Description
RF RX ASK/OOK 300-440MHZ 16SOICInventory
7315 Pcs New Original In Stock
QwikRadio® RF Receiver ASK, OOK 300MHz ~ 440MHz -102dBm 2kbps PCB, Surface Mount 16-SOIC
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
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MICRF009YM Technical Specifications
Category
RF Receivers
Packaging
Tube
Series
QwikRadio®
Product Status
Obsolete
Frequency
300MHz ~ 440MHz
Sensitivity
-102dBm
Data Rate (Max)
2kbps
Modulation or Protocol
ASK, OOK
Applications
RKE
Current - Receiving
2.9mA
Data Interface
PCB, Surface Mount
Memory Size
-
Antenna Connector
PCB, Surface Mount
Features
Automatic Tuning
Voltage - Supply
4.75V ~ 5.5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.154", 3.90mm Width)
Supplier Device Package
16-SOIC
Base Product Number
MICRF009
Datasheet & Documents
HTML Datasheet
MICRF009YM-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
576-1335
Standard Package
48
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
가격도 착하고, 친절한 직원들 덕분에 항상 기분 좋게 구매하고 있어요.
Dec 02, 2025
Je suis très heureux de soutenir une entreprise qui offre de bonnes affaires tout en prenant soin de la planète.
Dec 02, 2025
Super Versandgeschwindigkeit und hervorragend geschulte Support-Mitarbeiter.
Dec 02, 2025
Whenever I have questions about my delivery, their support team provides detailed explanations and updates without delay.
Dec 02, 2025
The items are exactly as described, with no surprises—very trustworthy.
Dec 02, 2025
Their technical assistance is reliable and always resolves my concerns efficiently.
Dec 02, 2025
Prices at DiGi Electronics are unbeatable compared to other stores.
Dec 02, 2025
I trust DiGi because of their reliable after-sales support and affordable rates.
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Frequently Asked Questions (FAQ)
Can the MICRF009YM still be used in new remote keyless entry (RKE) designs despite being marked as obsolete, and what are the risks of relying on it for long-term production?
While the MICRF009YM is technically functional and available in limited stock, using it in new RKE designs carries significant long-term supply chain risks due to its obsolete status. Microchip has discontinued active support and future production, meaning inventory depletion could halt manufacturing. Additionally, newer alternatives like the ATA8515-GHQW or MICRF219AAYQS offer improved sensitivity, lower power consumption, and enhanced interference immunity—critical for modern automotive environments. Designing in the MICRF009YM today may require costly redesigns later; we recommend migrating to a supported successor unless legacy compatibility is strictly required.
How does the MICRF009YM compare to the MICRF219AAYQS for ASK/OOK receiver applications in terms of real-world range and noise immunity, especially in urban RF-dense environments?
The MICRF009YM has a sensitivity of -102dBm at 2kbps, while the MICRF219AAYQS improves this to -110dBm, offering approximately 8dB better link budget—translating to 2–3x longer reliable range in practice. More importantly, the MICRF219AAYQS includes integrated SAW filtering and better adjacent channel rejection, making it far more robust in urban settings with strong interfering signals (e.g., Wi-Fi, Bluetooth, LTE). The MICRF009YM lacks such filtering and relies heavily on external components for selectivity, increasing BOM complexity and susceptibility to desense. For new designs, the MICRF219AAYQS is a superior drop-in upgrade with better performance and future availability.
What layout and grounding considerations are critical when replacing the MICRF009YM with the ATA8510-GHQW in an existing PCB footprint, given differences in pinout and power supply requirements?
Although both the MICRF009YM and ATA8510-GHQW come in 16-SOIC packages, they are not pin-compatible. The ATA8510-GHQW operates at 3.3V (vs. 5V for MICRF009YM) and has a different pinout, requiring PCB re-layout. Critical steps include: ensuring a solid ground plane beneath the RF section, minimizing trace lengths to the antenna matching network, and adding a low-ESR decoupling capacitor (100nF + 10µF) near the VDD pin. Also, verify that your MCU can interface with the ATA8510’s CMOS-level data output. A test board with impedance-controlled RF traces (50Ω) is strongly advised before full production transition to avoid signal integrity issues.
Is it safe to operate the MICRF009YM at its maximum specified supply voltage (5.5V) continuously in automotive environments where load dump transients can exceed 40V?
No—operating the MICRF009YM at 5.5V continuously without robust transient protection is risky in automotive applications. While the part tolerates up to 5.5V steady-state, ISO 7637-2 load dump pulses can induce voltages far beyond this, potentially damaging the IC even with brief exposure. A TVS diode (e.g., SMAJ5.0A) placed close to the power input, combined with a series current-limiting resistor and bulk capacitance, is essential. Additionally, consider using a regulated 5V supply with overvoltage shutdown (like the MCP1790) to isolate the MICRF009YM from bus transients. Relying solely on the IC’s absolute maximum ratings without system-level protection significantly increases field failure risk.
Can the MICRF009YM’s automatic tuning feature compensate for antenna detuning caused by hand proximity or enclosure materials in wearable or handheld RKE fobs?
The MICRF009YM’s automatic tuning helps maintain resonance under minor frequency drift (e.g., temperature or component tolerance), but it cannot fully compensate for severe detuning caused by human body proximity or lossy plastic enclosures. In handheld fobs, hand effects can shift antenna impedance significantly, reducing efficiency by 10–20dB. The MICRF009YM lacks adaptive impedance matching, so performance will degrade. For such applications, consider receivers with built-in antenna diversity or dynamic tuning (like the ATA8515-GHQW), or design the antenna with hand-effect mitigation (e.g., ground plane isolation, higher-Q matching networks). Testing with the fob in realistic usage positions is essential—don’t rely solely on bench measurements with the device in free space.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MICRF009YM CAD Models
Microchip Technology MICRF009YM PCB symbols & footprints
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