Difference between ST25DV04K & ST25DV04KC

[NSa.1]

Hi

Could any one please tell me the difference between ST24DV04K & ST25DV04KC chips?

In datasheet for KC , it says that it is Version-C in part ordering info

Both ICs seem to work from 1.8 V to 5.5V

What am I missing here?

Kind regards

[JL. Lebon · Accepted solution]

Hello,

Basically, the ST25DV04KC version is a ST25DV04K with some improvements on I2C interface:

• I2C write speed is 4x faster (time to program EEPROM)
• I2C slave address is configurable
• There are 2 new interrupts on I2C events
• I2C can get priority access over RF interface

A few configuration addresses have changed between the two version.

There is a complete application note explaining all those differences and how to switch from K to KC version: "AN5633 Migrating from ST25DVxxK to ST25DVxxKC". It is available here: https://www.st.com/resource/en/application_note/an5633-migrating-from-st25dvxxk-to-st25dvxxkc-stmicroelectronics.pdf

Best regards.

[NSa.1]

Thank you for the explanation & the app note :)