CC1021 Multichannel FSK/OOK CMOS RF Transceiver for Narrowband App w/Ch Spacings of 50 kHz or Higher |


Multichannel FSK/OOK CMOS RF Transceiver for Narrowband App w/Ch Spacings of 50 kHz or Higher


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The current RUZ package used with CC1021 will be replaced by the RSS package to secure manufacturability and long term availability of CC1021, as described in PCN# 20141212001. Such changes are normal during the lifetime of a product and do not affect the availability or support of the CC1021 product. In a transition period defined in the PCN the existing package (RUZ) will be available alongside the drop-in replaceable (RSS) package. Note that when the CC1021RUZ-based products retire, new orderable part names need to be ordered as outlined in the PCN. This will be informed through the CC1021 product web page and the CC1021 datasheet accordingly when these changes occur.


The CC1021 device is a true single-chip UHF transceiver designed for very low power and very low voltage wireless applications. The circuit is mainly intended for the ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency bands at 433 MHz, 868 MHz, and 915 MHz, but can easily be programmed for multichannel operation at other frequencies in the 402- to 470-MHz and 804- to 960-MHz range.

The CC1021 device is especially suited for narrowband systems with channel spacing of 50 kHz and higher complying with EN 300 220, FCC CFR47 part 15, and ARIB STD-T96.

The CC1021 main operating parameters can be programmed through a serial bus, thus making CC1021 a very flexible and easy to use transceiver.

In a typical system, CC1021 will be used together with a microcontroller and a few external passive components.


  • True Single Chip UHF RF Transceiver
  • Frequency Range 402 MHz to 470 MHz and 804 MHz to 960 MHz
  • High Sensitivity
    • Up to –112 dBm for 38.4 kHz Receiver Channel Filter Bandwidth
    • Up to –106 dBm for 102.4 kHz Receiver Channel Filter Bandwidth
  • Programmable Output Power
  • Low Current Consumption
    • RX: 19.9 mA
  • Low Supply Voltage
    • From 2.3 V to 3.6 V
  • Very Few External ComponentsRequired
  • Small Size
    • QFN 32 Package
  • Pb-Free Package
  • Digital RSSI and Carrier Sense Indicator
  • Data Rate Up to 153.6 kBaud
  • OOK, FSK, and GFSK Data Modulation
  • Integrated Bit Synchronizer
  • Image Rejection Mixer
  • Programmable Frequency
  • Automatic Frequency Control (AFC)
  • Suitable for Frequency Hopping Systems
  • Suited for Systems Targeting Compliance With
    EN 300 220, FCC CFR47 Part 15, ARIB STD-T96
  • Development Kit Available
  • Easy-to-Use Software for Generating the CC1021 Configuration Data
  • Fully Compatible With CC1020 for Receiver Channel Filter Bandwidths of 38.4 kHz and Higher

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Parametrics Compare all products in Sub-1 GHz

Device type
Frequency bands (MHz)
Flash (KB)
Data rate (Max) (kbps)
RX current (lowest) (mA)
Sensitivity (Best) (dBm)
TX Power (Max) (dBm)
Approx. price (US$)
Smart RF Transceiver    
4.57 | 1ku