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What is the difference between CC2450 and CC2451?

Pradnya Gaonkar

Prodigy 130 points

Other Parts Discussed in Thread: CC2541, CC2540, CC2640

What is the difference between CC2450 and CC2451?

Which one supports the Bluetooth Piconet feature?

Thanks!

over 11 years ago

0 YiKai Chen over 11 years ago

Guru 735705 points

CC2540 supports USB but CC2541 not.

0 Pradnya Gaonkar over 11 years ago in reply to YiKai Chen

Prodigy 130 points

thanks! What about the piconet support?

0 Eirik V over 11 years ago

TI__Guru 56590 points

Hello Pradnya,
Here is a thread that discuss the differences between the two:
e2e.ti.com/.../346934

Both support Bluetooth Smart Single mode, but the CC2541 (0 dBm, Lower power, I2C) can also be used in proprietary mode while CC2540 (USB, 4dBm) can only support BLE. We have also released the new BLE device called CC2640 with more processing power, lower power and more.

0 YiKai Chen over 11 years ago in reply to Pradnya Gaonkar

Guru 735705 points

Piconet is for BT. Basically, BLE uses start topology. The number of max connections depends on how many RAM/FLASH you have on your Central Role device. For, CC254x, it can connect upto 3 devices when it acts central role.

0 Eirik V over 11 years ago in reply to YiKai Chen

TI__Guru 56590 points

FYI: And the new CC2640 will be able to support around 8 connections on a single master.

0 YiKai Chen over 11 years ago in reply to Eirik V

Guru 735705 points

Yes, CC2640 is much more powerful in capability and much more low power consumption in comparison with CC254x.