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CC2640: CC2640 compatibility with CC2541

Part Number: CC2640
Other Parts Discussed in Thread: CC2650, , CC2541

My team and I are creating a prototype that uses BLE to communicate information from a sensor. We're using a CC2640 due our low power budget at the sensor. We already had a CC2541 on hand and were planning to use it to receive information transmitted from the CC2640 over BLE link. The CC2541 does not have a power budget. We want to know if the two devices are compatible for communicating over BLE, and if they are is it significantly more difficult to communicate between CC2640 and CC2541 than to communicate between CC2640 and CC2650. We are considering replacing the CC2541 with the CC2640 if it's difficult for the CC2640 and CC2541 to communicate over BLE.

  • Hi,

    It should be fine to communicate between the 2, provided that you are not making use of any features in the Bluetooth spec past version 4.0. If you are using 4.1 or 4.2 features, which are not supported on the CC2541, then you will need 2 CC2640s.

    -Nathan