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MICRF221AYQS is listed in the RF Receivers range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is RF RX ASK/OOK 850-950MHZ 16QSOP. Review the specifications below when checking this part for your BOM.
RF Receivers specifications for MICRF221AYQS
- Description：RF RX ASK/OOK 850-950MHZ 16QSOP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Frequency：850MHz ~ 950MHz
- Sensitivity：-109dBm
- Data Rate (Max)：10kbps
- Modulation or Protocol：ASK, OOK
- Applications：-
- Current - Receiving：9.3mA
- Data Interface：PCB, Surface Mount
- Memory Size：-
- Antenna Connector：PCB, Surface Mount
- Features：-
- Voltage - Supply：3V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-QSOP
- Grade：-
- Qualification：-
RF Receivers datasheet and documents for MICRF221AYQS
RF Receivers Overview
The MICRF221AYQS is a superheterodyne RF receiver IC designed for ASK and OOK modulation protocols. It operates within the 850MHz to 950MHz frequency range, supporting data rates up to 10kbps. The device features a sensitivity of -109dBm and requires a supply voltage between 3V and 3.6V. Typical receive current consumption is 9mA. It is housed in a 16-QSOP package with a width of 3.90mm.
RF Receivers Feature Summary
- Superheterodyne architecture providing high selectivity without requiring external IF filters
- Integrated automatic polling capability to optimize power consumption during idle periods
- Built-in RSSI (Received Signal Strength Indicator) output for link quality monitoring
RF Receivers Applications
- Remote Keyless Entry (RKE) systems
- Garage door opener transceivers
- Industrial, Scientific, and Medical (ISM) band wireless sensors
RF Receivers Procurement Notes
Verify the specific suffix against official Microchip documentation to confirm packaging configuration. The base part number typically denotes tube packaging, while suffixes such as TR indicate reel packaging. Ensure the selected variant matches the required manufacturing assembly process and handling specifications.
RF Receivers Selection Notes
Select this component for applications requiring low-cost, low-power reception in the 850-950MHz band. It is suitable for simple on-off keying protocols where moderate sensitivity is sufficient. Consider the 16-QSOP footprint for PCB layout constraints and verify thermal performance within the specified operating temperature range.
RF Receivers Part Context
This receiver belongs to the MICRF2xx series from Microchip Technology, which includes variants like the MICRF211 and MICRF220. These devices share similar architectural features but differ in operational frequency bands. The MICRF221AYQS specifically targets the higher 850-950MHz segment compared to lower-frequency counterparts.
RF Receivers Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing with other models in the MICRF2xx family may require verification of frequency band compatibility and pinout differences.
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