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Texas Instruments CC2500RTKR — RF & Wireless ICs
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Texas Instruments / RF & Wireless ICs

CC2500RTKR 2.4 GHz TxRx Only, -104 dBm, 20-QFN

MPN CC2500RTKR
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TI CC2500RTKR, 2.4 GHz ISM-band transceiver, TxRx Only, 2FSK/GFSK/MSK/OOK modulation, -104 dBm sensitivity, 1 dBm output, 500 kBaud max, SPI, 1.8V-3.6V, -40°C~85°C, 20-QFN (4x4 mm).

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[SPEC] Essential Parameters Snapshot Full Specifications (15)
Supply Voltage 1.8V ~ 3.6V

Full Technical Specifications

15 Parameters
CC2500RTKR specifications
Parameter / AttributeSpecification / Value
TypeTxRx Only
MountingSurface Mount
RF familyGeneral ISM > 1GHz
Supply voltage1.8V ~ 3.6V
Current - receiving13.3mA ~ 19.6mA
Current - transmitting11.1mA ~ 21.5mA
Power - output1dBm
Frequency2.4GHz
Serial interfacesSPI
Operating temperature-40°C~85°C
PackageTape & Reel (TR); Cut Tape (CT)
Modulation2FSK, GFSK, MSK, OOK
Sensitivity-104dBm
Case20-VFQFN Exposed Pad
Data rate500kBaud
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Technical Details & Description

2.4 GHz pure radio front-end — no protocol stack onboard

The TI CC2500RTKR is a single-chip 2.4 GHz transceiver for the ISM band, classified as TxRx Only — meaning it has no embedded MCU or protocol stack. It handles modulation formats 2FSK, GFSK, MSK, and OOK at data rates up to 500 kBaud, making it a flexible RF front-end for custom link-layer designs in applications like wireless sensor networks, remote controls, and industrial telemetry. Sensitivity is rated at -104 dBm, and with a maximum output power of 1 dBm the total link budget sits around 105 dB before antenna gains — enough for several hundred metres line-of-sight with a modest dipole.

Package and layout: 20-QFN with exposed pad

The SPI serial interface controls all register configuration and data transfer. Current consumption ranges from 13.3 mA to 19.6 mA in receive mode and 11.1 mA to 21.5 mA during transmission, depending on output power and modulation settings.

Obsolete — sourcing via independent distribution

Frequently asked questions

What is the replacement for CC2500RTKR?

TI has not published an official direct replacement for the CC2500RTKR. For a pin-compatible alternative within the same family, the CC2500 (base product number) shares the same 20-QFN footprint and SPI interface, but verify the exact suffix for temperature range and packaging before substituting.

CC2500RTKR
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