CC1021 is a single chip low power RF transceiver designed for narrowband systems. It supports 433, 868 and 915MHz ISM/SRD band and can be used for Automatic Meter Reading, Wireless Alarm and Security Systems, Home Automation, Low Power Telemetry and Automotive (RKE/TPMS).
The CC1021 is a single‑chip low‑power UHF RF transceiver designed for narrow‑band wireless systems in the 402‑470 MHz and 804‑940 MHz ISM/SRD bands. It targets applications such as automatic meter reading, wireless alarm and security, home automation, low‑power telemetry, and automotive RKE/TPMS.
The manual covers absolute maximum ratings, operating conditions, detailed electrical specifications, pin assignments, circuit description, configuration software, and programming interfaces. It also includes application circuits, antenna considerations, and PCB layout recommendations for designers integrating the CC1021 into their products.
| Frequency range | 402‑470 MHz and 804‑940 MHz |
|---|---|
| Supply voltage | 2.3 V to 3.6 V |
| Data rate | up to 153.6 kBaud |
| Output power (433 MHz) | -20 dBm to +10 dBm |
| Output power (868 MHz) | -20 dBm to +5 dBm |
| Receiver sensitivity (38.4 kHz BW) | -109 dBm |
The CC1021 operates in the 402‑470 MHz and 804‑940 MHz ISM/SRD frequency bands.
The device requires a supply voltage between 2.3 V and 3.6 V.
The transceiver can transmit at data rates up to 153.6 kBaud.
Very few external components are required for operation.