Microchip MICRF221AYQS-TR
Microchip MICRF221AYQS-TR

Microchip MICRF221AYQS-TR

Manufacturer No:

MICRF221AYQS-TR

Manufacturer:

Microchip

Package:

16-SSOP (0.154, 3.90mm Width)

Description:

3.3V, QwikRadio 850 MHz to 950 MHz Receiver

DHL
DHL

In Stock :1221

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Shipped from:HK Warehouse
Expected Shipping:Wed, May 20 - Thu, May 21, 2026
Date Code:Within 2 Years

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Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1:Prepare product

Step1:Prepare product

Step2:Desiccant Protection

Step2:Desiccant Protection

Step3:Vacuum Packaging

Step3:Vacuum Packaging

Step4:Individual Package

Step4:Individual Package

Step5:Anti-collision Filling

Step5:Anti-collision Filling

Step6:Packaging Box

Step6:Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.

MICRF221AYQS-TR Information

Microchip MICRF221AYQS-TR technical specifications, attributes, parameters and parts with similar specifications to Microchip MICRF221AYQS-TR.

  • Type
  • Parameter
  • Frequency Range
  • 850 to 950
  • Operating Temp (°C) Min
  • -40
  • RX Current Consumption (mA)
  • 9
  • Sleep Mode Current Consumption (μA)
  • 0.05
  • Operating Temp (°C) Max
  • 105
  • Operating Voltage (V) Min
  • 3
  • Operating Voltage (V) Max
  • 3.6
  • Modulation
  • ASK/OOK
  • Host Interface
  • Demodulate d Output
  • RX Sensitivity (dBm)
  • -109
  • Type
  • Parameter
  • Data Range (Kbps) Max
  • 10

Download datasheets and manufacturer documentation for Microchip MICRF221AYQS-TR.

The MICRF221 is a third generation QwikRadio® receiver, offering all the benefits of Micrel's earlier QwikRadio products with significant improvements, including: enhanced sensitivity, automatic duty-cycle feature and RSSI output.

The MICRF221 is a super-heterodyne receiver, designed for OOK and ASK modulation. The down-conversion mixer also provides image rejection.

The MICRF221 receiver provides a SLEEP Mode for duty-cycle operation and an enhanced, customer programmable "WAKE" function. These features are further combined into a wholly integrated "self-polling" scheme that is ideal for low and ultra-low power applications, such as RKE and RFID

All post-detection data filtering is provided on the MICRF221 receiver. Any one of four filter bandwidths may be selected externally by the user in binary steps, from 1.25kHz to 10kHz. The user needs only to program the device with a set of easily determined values based on data rate, code modulation format, and desired duty-cycle operation.

    • Complete receiver on a chip
    • -109dBm sensitivity, 1kbps, and BER 10-2
    • Image rejection mixer
    • 850MHz to 950MHz frequency range
    • Low power, 9mA @ 868MHz, continuous on
    • Data rates to 10kbps (Manchester Encoded)
    • Auto polling (sleep mode, current < 0.1 mA)
    • Analog RSSI output
    • Programmable “low sensitivity” mode
    • No IF filter required
    • Excellent selectivity and noise rejection
    • Low external part count
    • Additional functions programmed through serial interface