cancel
Showing results for 
Search instead for 
Did you mean: 

Clocks

MaKi_350451
New Contributor II

What is the number of programming that guarantee DECT specification?

(Please see an attached file for DECT of page19 on the datasheet.)

Is it one cycle only or 100k cycles?

Best regards,

0 Likes
Reply
1 Solution
PradiptaB_11
Moderator
Moderator

Hi Masaya-san,

Those are just example values. You can take any values for example. DRET will be valid till 100 K cycles provided the device is operated under datasheet operating conditions.

Regards,

Pradipta.

View solution in original post

0 Likes
Reply
6 Replies
MaKi_350451
New Contributor II

What is the number of programming that guarantee DRET specification?

(Please see an attached file for DRET of page19 on the datasheet.)

(I am sorry for my typo, It is DRET not DECT.)

Best regards,

0 Likes
Reply
PradiptaB_11
Moderator
Moderator

Hi

DRET is Data retention parameter for NV memory. So the data with which you program the device will be retained by the device for 10 years minimum without any loss of data. If you program the device again the new programming data will be retained in the device. It is for all the prog cycles for the device.

Regards,

Pradipta.

0 Likes
Reply
MaKi_350451
New Contributor II

Dear Pradipta san,

Thank you for your answer.

You mean the DRET is garantee 10 yaers after 100k cycles?

If not, How many cycles can you guarantee for the DRET condition?

Best Regards,

0 Likes
Reply
PradiptaB_11
Moderator
Moderator

Hi Masaya-san,

The DRET parameter will be guaranteed as long as you are under the datasheet limit for the number of programming cycles i.e is 100 K.

So DRET will be guaranteed say after 1K or 10K or 50K cycles but not after 100K cycles. Mostly what happens for this part is that customers fix on a particular configuration for the device and store it in the NV memory. Also note that you can store 8 different profiles in the NV memory at a single go. Any other changes in the configuration is achieved via I2C programming on the go if required. So actually there is no need to write all configurations to the NV memory. Still if you opt for NV programming 100K programming cycles is the standard number for most NV memory.

Regards,

Pradipta.

0 Likes
Reply
MaKi_350451
New Contributor II

Hi Pradipta san,

Thank you for your quick reply.

What do you mean the 1K or 10K or 50K cycles on your answer?

Is it difference of temperature conditions?

Or, Could you guarantee after 50k cycles as upper limit for DRET?

Best Regards,

0 Likes
Reply
PradiptaB_11
Moderator
Moderator

Hi Masaya-san,

Those are just example values. You can take any values for example. DRET will be valid till 100 K cycles provided the device is operated under datasheet operating conditions.

Regards,

Pradipta.

View solution in original post

0 Likes
Reply