#1 July 31, 2016 17:22:33

davidvb
Registered: 2016-06-19
Posts: 7
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LSR TiWi-uB2 with CC2564B instead or CC2564

Hello,

I see on a lot of websites the Texas Instruments CC2564 seems deprecated and should be replaced with the CC2564B. Will the LSR TiWi-uB2 been updated to this version? Or is there already an alternative available?

FYI
Changes from CC2560A and CC2564 to CC2560B and CC2564B Devices
The CC2560B and CC2564B devices include the following changes from the CC2560A and CC2564
devices:
• From a hardware perspective, both devices are pin compatible. From a software perspective, each
device requires a different service pack. When operating with the two devices using the supported
Bluetooth stack, the devices are integrated seamlessly and use remains identical for each device.
• Assisted mode for the HFP 1.6 (WBS) profile or the A2DP profile to enable more advanced features
without using host processing or power
• Support for the H5 protocol in the UART transport layer using 2-wire UART
• Enable 10 Bluetooth LE connections

Thanks,
David

Edited davidvb (July 31, 2016 17:26:48)

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#2 Aug. 1, 2016 20:42:33

SupportEngineer
Registered: 2016-03-11
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LSR TiWi-uB2 with CC2564B instead or CC2564

Hello,

We reached out to our development team for their feedback. Currently we do not have plans to update the TiWi-uB2, to the TI CC2564B as there has not been enough interest. Please feel free to reach out to us via our support email cs-support@lairdtech.com if you have a use case which would require the update, and we can look into re-evaluating the decision not to update to the CC2564B chip.

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#3 Aug. 2, 2016 15:31:14

davidvb
Registered: 2016-06-19
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LSR TiWi-uB2 with CC2564B instead or CC2564

Hello,

For the moment I'm good with the CC2564, but maybe in the future.

BTW the CC2564B is pin compatible with the CC2564 so maybe you can re-use the TiWi-uB2 design and just a remark on the current design, it's very useful to add a 100 mils connector to the TiWi-uB2 for breadboard compatibility ;-)

Thanks for the fast response!
David

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#4 April 20, 2018 16:10:41

mkirk
Registered: 2016-03-09
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LSR TiWi-uB2 with CC2564B instead or CC2564

If you do decide to update to CC2564B, please make pin 6 on TiWi-uB2 module a NC (no connect) instead of GND. This will make it compatible (second source) to the TI CC2564MODN module. TI module uses 2564B. TI has confirmed that pin 6 NC on their module cannot be grounded.

Is there a chance that TI will EOL the CC2564 IC ? Would that EOL the uB2 module or would it trigger a respin with the CC2564B or CC2564C chips?

As of today (20 April 2018), Mouser and DigiKey show that CC2564 is NRND (not recommended for new designs).

It should be noted that at boot time, the host BT loads a “firmware service-pack” into the CC2564. And it is different for each chip -CC2564 has different firmware service-pack than CC2564B and CC2564C. So it is not a simple matter of swapping in a new IC, the host BT firmware must change as well - maybe a #define statement in the code selects the correct service pack? I think there is a way to query the Major/Minor chip version to determine chip type.

Edited mkirk (April 20, 2018 20:29:04)

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#5 April 24, 2018 14:23:53

SupportEngineer
Registered: 2016-03-11
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LSR TiWi-uB2 with CC2564B instead or CC2564

Currently there are no plans to EoL the TiWi-uB2. As with every other chip, the CC2564 will, at some point, be EoL'd by TI. We are not aware of any information about the longevity of the chip either near-term or long-term. We apologize but since we cannot predict when they will EoL the CC2564, we will have to evaluate at that point in time if we have a business case to make the newer variant. We have passed your request to Product Management for consideration both now and when TI does decide to EoL the CC2564. Should TI decide to EoL the CC2564, we will be as far out in front with the notification as we can be. At that point we will be looking for input from customers interested in a newer variant and what quantities they will need.

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#6 March 14, 2019 19:40:14

mkirk
Registered: 2016-03-09
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LSR TiWi-uB2 with CC2564B instead or CC2564

Revisiting this thread. LSR still makes the TiWi-uB2 with the CC2564 chipset?

We have seen some factory test failures last week with this module and were wondering if the silicon changed to the CC2564B ?

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#7 March 15, 2019 17:34:30

SupportEngineer
Registered: 2016-03-11
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LSR TiWi-uB2 with CC2564B instead or CC2564

The silicon did not change. CC2564 is still used for the TiWi-uB2, not the CC2564B.

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#8 March 15, 2019 17:45:18

mkirk
Registered: 2016-03-09
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LSR TiWi-uB2 with CC2564B instead or CC2564

OK thanks. Turns out our distributor substituted the TI CC2564MODN BT module by mistake. And that part is not compatible - same footprint, but one different pin (6) and firmware version.

While you are available, the only pinout difference is pin 6. TI module is No connect (NC), but TiWi-uB2 is GND. Can we leave pin 6 as NC to at least make the PCB compatible with TI? Nearby pins 5 and 7 are both GND as well.

We also had one or two LSR TiWi-uB2 modules that failed our test script, but I think maybe it is a soldering reflow issue in our SMT line.

Edited mkirk (March 15, 2019 17:46:32)

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